Best SilverStone PC Power Supplies: 15 Models Compared
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When selecting a SilverStone PC power supply, you can choose from various compact form factors, including standard SFX, SFX-L, Flex ATX, TFX, and ATX designs. The lineup covers capacities from 300W up to 1000W with 80 PLUS Bronze, Gold, and Platinum efficiency ratings, alongside modular options and wiring hardware.
The top pick is the SilverStone Dual 24-Pin Power Supply Adapter Cable, which leads because it connects two units to one motherboard start signal across 25.6 inches of reach for dual-PSU mining rigs. This guide compares 15 products based entirely on the specifications published on their official listings.
Quick picks
Our 15 picks
SilverStone Dual 24-Pin Power Supply Adapter Cable
Best for: dual-PSU cryptocoin mining rigs
- Dimensions
- 25.6 × 2.5 × 0.5 inches
View on Amazon: SilverStone Dual 24-Pin Power Supply Adapter Cable
This SilverStone accessory links two power supplies to a single motherboard, powering both on simultaneously. You get two 24-pin female ports routed into one 24-pin (20+4) male connector. The harness measures 25.6 inches overall with 500 mm plus 150 mm segments. It suits your build when one unit lacks sufficient wattage, letting you combine two power units for high-draw setups such as cryptocoin mining.
Pros
- Starts two power supply units via a single motherboard
- Dual 24-pin female to single 24-pin (20+4) male wiring
- Total cable reach of 500 mm + 150 mm (25.6 inches overall)
- Compact 2.5-inch width by 0.5-inch height profile
Cons
- Cable adapter only, does not supply power independently
- Requires physical case room to mount two separate power units
Good fit if
- You need to synchronize two power supplies on one motherboard.
- You run a multi-PSU rig for cryptocoin mining.
- You require 500 mm + 150 mm harness length between connections.
Skip if
- You need a standalone power supply rather than a passive adapter.
- You only run a single power supply inside your system.
Verdict: SilverStone Dual 24-Pin Power Supply Adapter Cable connects two separate units to one motherboard start signal. It delivers 25.6 inches of reach for multi-PSU mining operations.
SilverStone 700W SFX 80 Plus Gold Power Supply
Best for: compact small form factor PC builds
- Wattage
- 700W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 4.92 × 3.94 × 2.5 inches
View on Amazon: SilverStone 700W SFX 80 Plus Gold Power Supply
This compact SFX power supply delivers 700 watts of power with an 80 PLUS Gold efficiency rating. It features a fully modular design with flat cables to assist cable management in small form factor cases. A 92mm fluid dynamic bearing fan provides cooling down to 18 dBA. You will find it suits high-power small form factor desktop builds that require tight voltage regulation and clean interior airflow.
Pros
- 80 PLUS Gold efficiency certification
- 100% modular flat array cabling
- Silent 92mm FDB fan with 18 dBA minimum noise
- Strict 3% voltage regulation on a single +12V rail
- All Japanese capacitors
Cons
- Not compatible with standard ATX power supply mounting holes
- Minimum fan noise floor is 18 dBA rather than zero RPM
Good fit if
- You need 700 watts of Gold-rated power in a strict SFX form factor.
- You want flexible flat modular cables to streamline routing in compact cases.
- You require tight 3% voltage regulation and Japanese capacitors.
Skip if
- You need mounting holes compatible with standard ATX case brackets.
- You require more than 700 watts of power for your hardware.
Verdict: SilverStone 700W SFX Fully Modular Power Supply delivers clean Gold-rated efficiency and 700W capacity in a true SFX footprint. It provides flexible flat cabling and reliable Japanese capacitors for demanding small-form-factor systems.
SilverStone 450W SFX Bronze Power Supply
Best for: compact builds needing moderate 450W continuous power
- Wattage
- 450W
- Efficiency Rating
- 80 Plus Bronze
- Form Factor
- SFX
- Dimensions
- 9 × 7 × 4 inches
This SilverStone unit is an SFX form factor power supply engineered for compact enclosures and includes a bracket for ATX cases. You receive 450W of continuous power output rated at 40°C for 24/7 operation, paired with an 80 Plus Bronze efficiency rating of 82% to 85%. It features a single +12V rail supplying 36A. It suits you if you build an entry-level or mid-tier small-form-factor system.
Pros
- Supports SFX cases and ATX mounting via included bracket
- Delivers 450W continuous power at 40°C for 24/7 operation
- Provides 36A on a single +12V rail
- Certified 80 Plus Bronze efficiency between 82% and 85%
Cons
- Lower 80 Plus Bronze efficiency compared to Gold or Platinum units
- 450W ceiling restricts use with high-draw hardware
Good fit if
- You need an SFX power supply with an included adapter bracket for ATX cases.
- You require continuous 450W delivery rated for 24/7 operation at 40°C.
- You run a compact setup that requires up to 36A on the +12V rail.
Skip if
- You need higher efficiency certifications such as 80 Plus Gold or Platinum.
- You run high-draw graphics cards or CPUs requiring more than 450W.
Verdict: SilverStone 450W Bronze SFX Power Supply delivers continuous 450W output with an included bracket for flexible enclosure mounting. It is a solid choice for compact systems that do not need higher wattage or Gold-rated efficiency.
SilverStone 700W Platinum SFX-L Power Supply
Best for: compact builds needing quiet 120mm fan cooling
- Wattage
- 700W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- PCIe Connector Type
- PCI-E 8/6pin
- Fan Size
- 120mm
- Form Factor
- SFX
View on Amazon: SilverStone 700W Platinum SFX-L Power Supply
The SilverStone 700W Platinum SFX-L Power Supply delivers continuous power for compact systems. It features 80 PLUS Platinum efficiency and a 120mm fan designed for semi-fanless operation. You get four PCI-E 8/6-pin connectors and fully modular, flexible flat cables sized for small cases. At 5.12 inches in length, this unit fits builds where standard SFX supplies run smaller fans.
Pros
- 80 PLUS Platinum efficiency rating
- Large 120mm fan with semi-fanless operation
- Fully modular flexible flat cable design
- Four PCI-E 8/6-pin power connectors
Cons
- Longer 5.12-inch SFX-L depth reduces clearance in ultra-compact cases
- Maximum continuous output limited to 700W
Good fit if
- You want a compact power supply with a larger 120mm cooling fan.
- You need 80 PLUS Platinum efficiency for a small-form-factor build.
- You require four PCI-E 8/6-pin connectors for graphics card power.
Skip if
- You need a shorter standard SFX footprint for tight case clearances.
- You require more than 700W of continuous power for high-draw hardware.
Verdict: SilverStone 700W Platinum SFX-L Power Supply pairs high efficiency with quiet cooling using its 120mm semi-fanless design. It suits compact configurations that have room for the extended SFX-L depth.
SilverStone 300W SFX Bronze Power Supply
Best for: low-power small-form-factor office or media PCs
- Wattage
- 300W
- Efficiency Rating
- 80 Plus Bronze
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 3.94 × 4.92 × 2.5 inches
This SilverStone unit delivers 300W of continuous power in a compact SFX form factor. It carries an 80 Plus Bronze efficiency certification and includes a mounting bracket for standard ATX cases. A single 92mm fan handles cooling, and the supply is rated for continuous operation at 40°C. It suits you if you need a reliable low-wattage supply for a compact home theater PC, office system, or basic secondary desktop build.
Pros
- 300W continuous output rated for 24/7 operation at 40°C
- Includes adapter bracket for standard ATX mounting
- Equipped with a 92mm silent running fan
- Single +12V rail design
Cons
- Limited to 300W maximum capacity
- Lower efficiency ceiling than Gold or Platinum models
Good fit if
- You build a low-draw system requiring 300W or less.
- You need an SFX power supply that can also mount in standard ATX cases.
Skip if
- You run high-draw graphics cards needing more than 300W.
- You require 80 Plus Gold or higher efficiency.
Verdict: SilverStone 300W Bronze SFX Power Supply provides a straightforward, entry-level power solution for compact and low-demand systems. It delivers steady 24/7 output at 40°C along with dual SFX and ATX mounting flexibility.
SilverStone 700W Platinum SFX Power Supply
Best for: compact builds demanding high electrical efficiency
- Wattage
- 700W
- Efficiency Rating
- 80 PLUS Platinum
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 3.94 × 4.92 × 2.5 inches
- Weight
- 4.59 pounds
This compact unit delivers 700 watts of continuous output inside a standard SFX chassis measuring 4.92 inches wide and 2.5 inches tall. You get 80 PLUS Platinum electrical efficiency, all Japanese capacitors, and a dedicated single +12V rail. A 92mm fluid dynamic bearing fan handles cooling with an 18 dBA minimum noise level. It suits your compact small-form-factor build when you need high electrical efficiency and dependable power delivery.
Pros
- 80 PLUS Platinum efficiency rating
- All Japanese capacitors
- 92mm fluid dynamic bearing fan with 18 dBA minimum noise
- Compact SFX dimensions at 4.92 x 2.5 x 3.94 inches
Cons
- ATX mounting adapter not included and sold separately
- 92mm cooling fan is smaller than SFX-L or ATX alternatives
Good fit if
- You are building a compact small-form-factor PC that requires a standard SFX footprint.
- You want 80 PLUS Platinum efficiency in a 700W power delivery bracket.
- You need a single +12V rail design paired with all Japanese capacitors.
Skip if
- You need to install the unit into a standard ATX case out of the box without buying an extra adapter bracket.
- You require more than 700 watts of output for higher-demand components.
Verdict: SilverStone 700W Platinum SFX Power Supply pairs high-efficiency 80 PLUS Platinum regulation with all Japanese capacitors in a space-saving SFX enclosure. It provides clean 700-watt power delivery for compact performance systems.
SilverStone 500W Flex ATX Power Supply
Best for: ultra-compact Flex ATX systems
- Wattage
- 500W
- Efficiency Rating
- 80 PLUS Gold
- Form Factor
- Flex ATX
- Dimensions
- 5.91 × 3.21 × 1.59 inches
- Weight
- 2.87 pounds
This power supply provides 500 watts of continuous output in a compact Flex ATX form factor. It carries an 80 PLUS Gold efficiency rating and features a single +12V rail alongside a Japanese primary capacitor. The unit is rated for 24/7 continuous operation at 40℃. If you are building a small setup that requires strict Flex ATX dimensions, this compact unit suits your space-constrained build.
Pros
- 80 PLUS Gold efficiency certification
- 500W continuous output rated for 24/7 operation at 40℃
- Japanese primary capacitor
- Single +12V rail design
Cons
- 500W maximum capacity limits power-heavy components
- Flex ATX form factor does not fit standard ATX cases natively
Good fit if
- You need a 500W power supply in a Flex ATX form factor.
- You run continuous 24/7 workloads at ambient temperatures up to 40℃.
Skip if
- You need higher wattage than 500W for high-end components.
- You use a standard ATX or SFX computer chassis.
Verdict: SilverStone 500W Flex ATX Power Supply delivers reliable 500W continuous output and 80 PLUS Gold efficiency in an ultra-compact chassis. It provides continuous 24/7 power for space-restricted Flex ATX enclosures.
SilverStone SX750 750W SFX Platinum PSU
Best for: compact high-efficiency small-form-factor PC builds
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 10 × 8 × 4 inches
This is a compact SFX power supply built for small-form-factor systems. You get 750 watts of output with 80 PLUS Platinum efficiency and a single +12V rail. It features fully modular flat ribbon cables, Japanese capacitors, and tight ±3% voltage regulation. A 92mm dual ball bearing fan provides cooling with automatic start-stop operation. It suits you if you need high efficiency inside a tight PC case.
Pros
- 80 PLUS Platinum efficiency certification
- 100% modular design with flexible flat cables
- 92mm dual ball bearing fan with automatic start-stop mode
- All Japanese capacitors with ±3% voltage regulation
Cons
- Output capped at 750W capacity
- No PCIe Gen 5 power cables listed
Good fit if
- You need 750W of power in a standard SFX form factor.
- You want 80 PLUS Platinum efficiency with fully modular cables.
- You prefer semi-passive cooling with a fan that stops at low loads.
Skip if
- You need more than 750W for higher-power hardware.
- You require native PCIe 5.0 power connections.
Verdict: SilverStone 750W Platinum SFX Power Supply delivers high-efficiency power in a compact, fully modular SFX package. It provides tight voltage regulation and semi-passive cooling for small-form-factor builds.
SilverStone 500W Gold TFX Power Supply
Best for: compact slimline cases requiring TFX power
- Wattage
- 500W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fixed Cable
- Fan Size
- 80mm
- Form Factor
- TFX
- Dimensions
- 6.9 × 3.4 × 2.6 inches
This SilverStone unit delivers 500W of continuous power in a compact TFX form factor, measuring 3.4 inches wide and 2.6 inches high. It features an 80 PLUS Gold efficiency rating and supports 24/7 continuous operation at up to 50°C. Cooling comes from an 80mm fan rated down to 18 dBA. It suits you if you need reliable power for a slim PC case that requires standard TFX mounting dimensions.
Pros
- 80 PLUS Gold certified efficiency
- 500W continuous output rated at 50°C for 24/7 operation
- Silent 80mm fan with 18 dBA minimum noise level
- Built-in multiple protection circuitry
Cons
- Fixed cables without modular detachment
- Restricted to cases supporting standard TFX dimensions
Good fit if
- You need a 500W power supply designed for a TFX enclosure.
- You run systems continuously in environments reaching up to 50°C.
- You want 80 PLUS Gold efficiency in a slim form factor.
Skip if
- You require fully modular cabling to minimize case clutter.
- You need a standard ATX or SFX form factor supply.
Verdict: SilverStone 500W Gold TFX Power Supply provides continuous 500W output and high efficiency for small-form-factor builds that require TFX dimensions. Its 50°C operational rating makes it a stable choice for compact continuous-duty systems.
SilverStone 750W Platinum SFX PSU
Best for: high-efficiency small-form-factor PC builds
- Wattage
- 750W
- Efficiency Rating
- 80 Plus Platinum
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 3.94 × 4.92 × 2.5 inches
The SilverStone SX750 V1.1 is a 750-watt standard SFX power supply designed for compact builds. It features an 80 PLUS Platinum efficiency rating, fully modular cabling, and all Japanese capacitors. A 92mm dual ball bearing fan provides cooling with an auto start-stop mode governed by load and temperature. If you need high power output inside a small chassis measuring 4.92 by 2.5 by 3.94 inches, this unit fits your requirements.
Pros
- 80 PLUS Platinum certified efficiency
- Fully modular cable configuration
- 92mm dual ball bearing fan with auto start-stop
- All Japanese capacitors
Cons
- Uses a 92mm fan instead of a larger 120mm fan
- Compact SFX footprint limits total wattage to 750W
Good fit if
- You need 750 watts in a standard SFX chassis.
- You require 80 PLUS Platinum efficiency and fully modular cabling.
- You want semi-passive cooling that stops the fan under low thermal load.
Skip if
- You need more than 750 watts for high-draw hardware.
- You prefer an SFX-L or ATX unit equipped with a 120mm fan.
Verdict: SilverStone 750W Platinum Fully Modular SFX PSU delivers high efficiency and 750W of power in a standard SFX footprint. Its fully modular cabling and semi-passive 92mm fan suit space-constrained PC builds.
SilverStone 750W Gold SFX Power Supply
Best for: compact high-wattage small form factor PC builds
- Wattage
- 750W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- Fan Size
- 92mm
- Form Factor
- SFX
- Dimensions
- 3.94 × 4.92 × 2.5 inches
This SilverStone unit provides 750W of continuous power in a standard SFX form factor. It carries an 80 Plus Gold efficiency certification and features a fully modular design with flexible flat cables. A 92mm HYB fan handles cooling, while Japanese electrolytic capacitors manage power delivery with strict ±3% voltage regulation. It suits you if you need substantial output for a small form factor build without stepping up to larger SFX-L dimensions.
Pros
- Fully modular cable design with flexible flat arrays
- All Japanese electrolytic capacitors with single +12V rail
- Strict ±3% voltage regulation and low ripple and noise
- Standard SFX size with 92mm HYB cooling fan
Cons
- Uses a 92mm cooling fan rather than a larger 120mm fan
- 80 Plus Gold efficiency rather than higher Platinum rating
Good fit if
- You are assembling a small form factor build requiring standard SFX dimensions.
- You need 750W of output with fully modular flat cabling for compact routing.
Skip if
- You require an 80 Plus Platinum efficiency rating.
- You need more than 750W of continuous output for higher-draw components.
Verdict: SilverStone 750W Gold SFX Power Supply delivers 750W of power in standard SFX dimensions with 80 Plus Gold efficiency and full modularity. It provides high capacity for compact enclosures without exceeding standard SFX sizing.
SilverStone Extreme 850W Platinum SFX PSU
Best for: compact ATX and SFX builds needing Platinum efficiency
- Wattage
- 850W
- Efficiency Rating
- Cybenetics Platinum
- Modularity
- modular
- ATX Version
- ATX 3.0
- PCIe Connector Type
- 12VHPWR
- Fan Size
- 92mm
This 850W power supply delivers Cybenetics Platinum efficiency and meets ATX 3.0 standards via SFX12V 4.0 specifications. You get a dedicated 450W 12VHPWR PCIe 5.0 connector, all Japanese electrolytic capacitors, and an included ATX adapter bracket. Its 92mm fluid dynamic bearing fan provides intelligent speed control and delayed shut-off. This unit suits you if you need high-efficiency power inside an ATX or small chassis.
Pros
- Cybenetics Platinum efficiency certification
- Native 450W 12VHPWR PCIe 5.0 connector
- Includes ATX to SFX mounting bracket
- All Japanese electrolytic capacitors rated to 50℃
Cons
- 12VHPWR connector capped at 450W rather than 600W
- Uses smaller 92mm fan instead of full-size 120mm ATX fan
Good fit if
- You need an 850W Cybenetics Platinum unit for an ATX or SFX case.
- You run a modern graphics card requiring a 450W 12VHPWR cable.
- You want continuous 24/7 output rated up to 50℃ operating temperatures.
Skip if
- You require a full 600W-rated 12VHPWR connector for flagship graphics cards.
- You prefer a native full-size ATX chassis housing a 120mm cooling fan.
Verdict: SilverStone Extreme 850W Platinum PSU provides robust ATX 3.0 power and high efficiency for both compact and standard cases using its included bracket. It handles demanding hardware reliably, though the PCIe 5.0 connector caps at 450W.
SilverStone Extreme 550W SFX Gold Power Supply
Best for: compact PCIe Gen 5 small-form-factor builds
- Wattage
- 550W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Modular
- ATX Version
- SFX12V 4.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 92mm
View on Amazon: SilverStone Extreme 550W SFX Gold Power Supply
This SilverStone unit delivers 550 watts of continuous output at 40°C in a compact SFX form factor. It meets SFX12V 4.1 standards and holds an 80 PLUS Gold efficiency certification. Inside, it uses primary Japanese capacitors and a 92mm fluid dynamic bearing fan with smart deactivation. It suits you if you are building a small-form-factor PC that requires flat cables and PCIe Gen 5 support.
Pros
- 80 PLUS Gold certified with continuous 550W output at 40°C
- Compliant with SFX12V 4.1 standard and PCIe Gen 5
- 92mm FDB fan with smart deactivation
- Primary Japanese capacitors
- Flexible black flat modular cables
Cons
- 12V-2x6 cable must be purchased separately
- Total output limited to 550 watts
Good fit if
- You are building a compact system requiring a dedicated SFX power supply.
- You need SFX12V 4.1 compliance with an onboard 12V-2x6 connector.
- You want quiet operation supported by a fan with smart zero-load deactivation.
Skip if
- You run high-draw graphics cards or CPUs requiring more than 550 watts.
- You expect the 12V-2x6 cable to be included in the box.
Verdict: SilverStone Extreme 550W SFX Gold Power Supply provides modern SFX12V 4.1 compliance and efficient Gold-rated power in a space-saving footprint. It is well suited for modest mini-ITX setups, provided your system remains within its 550-watt ceiling.
SilverStone Extreme 650Rz 650W SFX Power Supply
Best for: compact builds needing SFX12V 4.1 support
- Wattage
- 650W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Modular
- ATX Version
- SFX12V 4.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 92mm
View on Amazon: SilverStone Extreme 650Rz 650W SFX Power Supply
The SilverStone Extreme 650Rz 650W SFX Power Supply is a compact unit built to the SFX12V 4.1 standard. It delivers 650W of continuous output at a 40℃ operating temperature and carries an 80 PLUS Gold efficiency rating. Inside, it features primary Japanese capacitors and a 92mm FDB fan with smart deactivation. This suits you if you need a modern SFX unit for a compact case.
Pros
- SFX12V 4.1 compliant with native 12V-2x6 connector support
- 80 PLUS Gold certified for continuous 24/7 output at 40℃
- Primary Japanese capacitors
- 92mm FDB fan with smart deactivation
- Includes flexible black flat modular cables
Cons
- 12V-2x6 cable is sold separately
- 650W total output limits headroom for high-draw hardware
- Continuous power rating is capped at 40℃
Good fit if
- You are assembling an SFX PC that requires SFX12V 4.1 compliance.
- You want 80 PLUS Gold efficiency paired with a zero-RPM fan mode.
- You need standard SFX dimensions with flexible flat modular cabling.
Skip if
- You require the 12V-2x6 power cable to be included in the box.
- You need more than 650W of continuous power for high-wattage components.
Verdict: SilverStone Extreme 650Rz 650W SFX Power Supply brings SFX12V 4.1 compatibility and Gold-rated efficiency to compact builds. Note that you must purchase the 12V-2x6 cable separately if your setup requires it.
SilverStone Extreme 1000W Platinum SFX Power Supply
Best for: high-wattage small-form-factor PC builds
- Wattage
- 1000W
- Efficiency Rating
- Cybenetics Platinum
- Modularity
- Fully modular
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 92mm
- Form Factor
- SFX
View on Amazon: SilverStone Extreme 1000W Platinum SFX Power Supply
You get a 1000W fully modular power supply in a compact SFX footprint. It features Cybenetics Platinum efficiency and delivers continuous output at 40℃. The included 600W PCIe Gen 5 12V-2x6 connector powers modern graphics hardware directly. At 100mm deep with flush modular sockets, it fits tight spaces. A 92mm fluid dynamic bearing fan includes intelligent deactivation. This unit suits you if you build a high-draw small-form-factor system.
Pros
- Cybenetics Platinum efficiency rating
- Dedicated 600W PCIe Gen 5 12V-2x6 connector
- Standard 100mm SFX depth with flush modular ports
- 92mm FDB fan with intelligent fan deactivation
- Continuous 1000W output rated at 40℃
Cons
- Uses a smaller 92mm fan rather than a 120mm SFX-L design
- ATX frame adapter bracket not listed in specifications
Good fit if
- You need 1000W capacity inside a standard 100mm SFX chassis.
- You run a high-end graphics card using a 600W 12V-2x6 power connection.
- You want zero-RPM fan deactivation under lower load levels.
Skip if
- You prefer a larger 120mm fan found on SFX-L power supplies.
- You require an included ATX mounting bracket for standard desktop cases.
Verdict: SilverStone Extreme 1000W Platinum SFX Power Supply packs substantial output and PCIe Gen 5 support into a standard 100mm SFX profile. It offers Cybenetics Platinum efficiency for compact builds with high energy demands.
Specifications side by side
| Spec | SilverStone Dual 24-Pin Power Supply Adapter Cable | SilverStone 700W SFX 80 Plus Gold Power Supply | SilverStone 450W SFX Bronze Power Supply | SilverStone 700W Platinum SFX-L Power Supply | SilverStone 300W SFX Bronze Power Supply | SilverStone 700W Platinum SFX Power Supply | SilverStone 500W Flex ATX Power Supply | SilverStone SX750 750W SFX Platinum PSU | SilverStone 500W Gold TFX Power Supply | SilverStone 750W Platinum SFX PSU | SilverStone 750W Gold SFX Power Supply | SilverStone Extreme 850W Platinum SFX PSU | SilverStone Extreme 550W SFX Gold Power Supply | SilverStone Extreme 650Rz 650W SFX Power Supply | SilverStone Extreme 1000W Platinum SFX Power Supply |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage | not specified | 700W | 450W | 700W | 300W | 700W | 500W | 750W | 500W | 750W | 750W | 850W | 550W | 650W | 1000W |
| Efficiency Rating | not specified | 80 PLUS Gold | 80 Plus Bronze | 80 PLUS Platinum | 80 Plus Bronze | 80 PLUS Platinum | 80 PLUS Gold | 80 PLUS Platinum | 80 PLUS Gold | 80 Plus Platinum | 80 Plus Gold | Cybenetics Platinum | 80 PLUS Gold | 80 PLUS Gold | Cybenetics Platinum |
| Modularity | not specified | Fully Modular | not specified | Fully Modular | not specified | not specified | not specified | Fully Modular | Fixed Cable | Fully Modular | Fully Modular | modular | Modular | Modular | Fully modular |
| ATX Version | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | ATX 3.0 | SFX12V 4.1 | SFX12V 4.1 | not specified |
| PCIe Connector Type | not specified | not specified | not specified | PCI-E 8/6pin | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 12VHPWR | 12V-2x6 | 12V-2x6 | 12V-2x6 |
| Fan Size | not specified | 92mm | not specified | 120mm | 92mm | 92mm | not specified | 92mm | 80mm | 92mm | 92mm | 92mm | 92mm | 92mm | 92mm |
| Form Factor | not specified | SFX | SFX | SFX | SFX | SFX | Flex ATX | SFX | TFX | SFX | SFX | ATX | SFX | SFX | SFX |
| Size | not specified | 700W | 450W | 700W SFX12V | 300W V2 | 700W | 500W | not specified | 500W | 750W | 750W | 850W | not specified | not specified | not specified |
| Dimensions | 25.6 × 2.5 × 0.5 inches | 4.92 × 3.94 × 2.5 inches | 9 × 7 × 4 inches | 5.12 × 4.92 × 2.5 inches | 3.94 × 4.92 × 2.5 inches | 3.94 × 4.92 × 2.5 inches | 5.91 × 3.21 × 1.59 inches | 10 × 8 × 4 inches | 6.9 × 3.4 × 2.6 inches | 3.94 × 4.92 × 2.5 inches | 3.94 × 4.92 × 2.5 inches | 4.92 × 3.94 × 2.5 inches | 3.94 × 4.92 × 2.5 inches | 3.94 × 4.92 × 2.5 inches | 3.94 × 4.92 × 2.52 inches |
| Weight | not specified | 3.09 pounds | not specified | 5.07 pounds | not specified | 4.59 pounds | 2.87 pounds | 4.47 pounds | not specified | not specified | 4.45 pounds | not specified | not specified | not specified | not specified |
| Model | SST-PP10 | SST-SX700-G | SST-ST45SF-V3-USA | SST-SX700-LPT | SST-ST30SF V2 | SX700-PT | not specified | SX750-PT | SST-TX500-G | PS-SX750-PT-X | not specified | SST-EX850R-PM | SST-SX0550MCGD-A | SST-SX0650MCGD-A | SST-SX1000MCPT-3TD |
| Color | not specified | Black?Lead-Free Paint? | not specified | not specified | not specified | not specified | not specified | not specified | black (lead-free paint) | not specified | not specified | not specified | not specified | not specified | not specified |
Choosing Your SilverStone Power Supply
Specialty chassis require exact physical dimensions. The SilverStone 500W Flex ATX Power Supply fits space-restricted, ultra-compact enclosures. For slimline builds, the SilverStone 500W Gold TFX Power Supply provides continuous output within thin chassis confines. These non-standard shapes suit you when standard mini-ITX layouts do not fit your custom enclosure.
Mainstream small-form-factor systems divide between entry Bronze units and high-wattage Gold or Platinum platforms. The SilverStone 300W SFX Bronze Power Supply supports low-power office tasks. Demanding configurations require fully modular cables and modern specifications, seen on the SilverStone Extreme 850W Platinum SFX PSU with ATX 3.0 support. You choose based on enclosure form factor, modular cabling, and component wattage.
SilverStone Range Breadth and Hardware Gaps
SilverStone centers its hardware on space-conscious computer builds. You can select capacities ranging from a baseline 300W unit up to 1000W. Chassis profiles include standard SFX, lengthened SFX-L, slim TFX, and narrow Flex ATX shapes, alongside brackets for regular ATX cases.
You should note specific gaps across this selection. None of the listed models include integrated RGB lighting, offering only plain black exteriors. Maximum capacity stops at 1000W, leaving out higher-wattage hardware for heavy workstation setups. You also will not find standalone, full-sized ATX power supplies here, relying instead on compact units adapted with conversion brackets.
If you are balancing case dimensions and power needs, the overview of the best SilverStone CPU coolers outlines radiator clearances, fan airflow, and socket support.
Key Steps for Choosing SilverStone Power Supplies
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Measure Internal Enclosure Depth
Check your case specifications before picking between SFX and SFX-L designs. Standard SFX units measure roughly 3.94 inches in length, leaving sufficient room for cable management in compact mini-ITX cases. Extended SFX-L units, such as the SilverStone 700W Platinum SFX-L Power Supply, measure 5.12 inches deep. That extra length can crowd modular cable plugs against internal drive cages or front panels. Measure your mounting clearance carefully to ensure the added chassis depth fits your specific build without obstructing adjacent hardware components.
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Verify ATX Version Support
Look at the power delivery standard your graphics card requires. Modern platforms often demand ATX 3.0 or SFX12V 4.1 specifications to handle high-demand electrical loads. For instance, the SilverStone Extreme 850W Platinum SFX PSU includes ATX 3.0 support, but its dedicated PCIe 5.0 connector is rated specifically up to 450W. Review your graphics card peak consumption numbers. Choosing a power supply with native PCIe Gen 5 capability eliminates the need for bulky external splitters inside cramped cases.
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Assess Modular Cable Needs
Examine whether full modularity matches your space constraints. A fully modular power supply allows you to attach only the specific cables your hardware requires. The SilverStone 700W SFX 80 Plus Gold Power Supply features full modularity paired with flat cabling. In tight cases, fixed cables take up valuable volume and restrict internal ventilation pathways. If your build uses only a single storage drive and one GPU, modular connections prevent unused power leads from blocking airflow through your computer chassis.
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Select 80 Plus Efficiency
Compare the efficiency tiers across Bronze, Gold, and Platinum models. Higher electrical efficiency means less energy is lost as waste heat inside the casing. In tiny computer cases where cooling options are constrained, this reduction keeps internal temperatures lower. The SilverStone 700W Platinum SFX Power Supply delivers 80 PLUS Platinum levels of regulation. If you run your system under heavy processing loads for extended hours, Platinum efficiency reduces internal thermal stress compared to baseline Bronze equipment.
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Check Cooling Fan Diameter
Inspect the cooling fan specifications on each unit. Compact standard SFX supplies typically incorporate a 92mm fan to maintain standard dimensions. For example, the SilverStone 750W Platinum SFX PSU features a 92mm semi-passive fan that shuts off during lighter work sessions. If your enclosure lacks space for larger power units, a 92mm semi-passive setup balances component cooling with quiet idle running. Check whether your case layout positions the fan intake directly next to a ventilation panel.
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Verify Ambient Temperature Ratings
Look at the published operating temperature rating for continuous power delivery. Small enclosures easily trap heat from high-performance graphics cards and processors. The SilverStone 300W SFX Bronze Power Supply guarantees continuous full-load output at an ambient temperature of 40°C. In compact or poorly ventilated enclosures, ambient temperatures rise quickly above standard room levels. Choosing a unit rated for 40°C or higher continuous operation ensures your power supply will not shut down or suffer degraded output under sustained computing tasks.
Frequently asked questions
What is the purpose of the SilverStone dual 24-pin adapter cable?
The SilverStone Dual 24-Pin Power Supply Adapter Cable links two power supplies to a single motherboard start signal. You use this 25.6-inch cable to sync power delivery across multiple units, which suits multi-PSU cryptocurrency mining rigs. The SST-PP10 model provides the reach needed to connect separate units safely without manually triggering secondary supplies.
Which SilverStone power supplies support the SFX12V 4.1 standard?
The SilverStone Extreme 550W SFX Gold and SilverStone Extreme 650Rz 650W SFX units comply with the SFX12V 4.1 standard. Both power supplies feature Gold-rated efficiency in a compact SFX footprint. If you choose the 650W Extreme 650Rz model for modern graphics hardware, note that you must purchase the compatible 12V-2x6 cable separately to complete your build.
Can you install a SilverStone SFX power supply into an ATX case?
Yes, you can install select SilverStone SFX power supplies into ATX enclosures if the model includes an ATX mounting bracket. For example, the SilverStone 450W Bronze SFX unit and the SilverStone 300W Bronze SFX unit include mounting flexibility for standard ATX slots. The Extreme 850W Platinum PSU also includes an ATX bracket, allowing compact hardware to mount securely.
Does SilverStone make an SFX power supply with a 120mm fan?
Yes, the SilverStone 700W Platinum SFX-L Power Supply includes a 120mm cooling fan. Standard SFX units use smaller fans, but this model uses the extended SFX-L form factor to accommodate a larger 120mm semi-fanless design. It provides quiet cooling and fully modular cabling, but you must ensure your compact enclosure has clearance for its 5.12-inch length.
What is the power limit on the PCIe 5.0 connector of the SilverStone Extreme 850W?
The PCIe 5.0 connector on the SilverStone Extreme 850W Platinum SFX PSU delivers power capped at 450W. This ATX 3.0 unit provides robust Platinum-rated efficiency for demanding hardware, but you should verify your graphics card requirements before installation. If your GPU demands a 600W rating over a single 12VHPWR cable, this 450W cap will not meet that specification.
What is the highest wattage SFX power supply in the SilverStone lineup?
The SilverStone Extreme 1000W Platinum SFX Power Supply provides the highest capacity at 1000W. This unit delivers Cybenetics Platinum efficiency and PCIe Gen 5 support in a standard 100mm SFX profile measuring 3.94 inches in length. It suits compact small-form-factor builds with high power demands that require high continuous wattage without stepping up to larger SFX-L or ATX dimensions.
What continuous operating temperatures do compact SilverStone power supplies support?
SilverStone compact power supplies are engineered for elevated operating temperatures under continuous use. The SilverStone 500W Gold TFX Power Supply features an operational rating of 50°C for continuous-duty scenarios. Meanwhile, the entry-level SilverStone 300W SFX Bronze unit delivers steady 24/7 output at 40°C. These ratings ensure stable power delivery even inside compact, thermally restricted computer enclosures.