Looking Beyond the SilverStone Technology SST-SX700-G 700W SFX? 6 Alternatives Worth a Look
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The Silverstone Technology SST-SX700-G 700W SFX power supply delivers reliable 80 Plus Gold efficiency in a compact form factor. If you are searching for silverstone technology sst sx700 g 700w sfx alternatives, you may need different specifications for your build. This unit offers fully modular cabling and tight voltage regulation, which suits many small-form-factor systems. However, you might require more wattage, a different size, or a specific brand preference. Some builders prioritize silence, while others need higher power headroom for future upgrades. The alternatives listed here were chosen because their specs overlap with the original SilverStone unit. They share key attributes like Gold efficiency ratings and modular designs. This list includes options for both SFX and standard ATX cases. You will find models with higher wattages, such as 850W or 1050W options. Others offer different warranty lengths or additional features like smart lighting. Each alternative serves a distinct use case, whether you need maximum power density or standard ATX compatibility. Review the specifications to find the best match for your specific hardware requirements.
Our top pick: SilverStone 700W SFX 80 Plus Gold Power Supply.
How each alternative compares
Lian Li SP 750W Gold SFX Power Supply
The Lian Li SP 750W Gold offers 50 watts more output than the SilverStone unit, providing extra headroom for demanding components. It shares the SFX form factor and Gold efficiency rating, making it a direct physical fit for compact cases. This model is fully modular like the original. However, its dimensions differ slightly, so you must verify clearance in your specific chassis. If you need more power without changing your case size, this is a logical upgrade. It suits builders who want a balanced option with slightly higher capacity while maintaining the small footprint.
Thermaltake Toughpower iRGB Plus 750W Gold PSU
This Thermaltake unit is an ATX power supply, meaning it is physically larger than the compact SFX SilverStone. It provides 750 watts of power and features a 10-year warranty, which is longer than typical SFX offerings. It is designed for standard ATX cases rather than small form factor builds. If you are not constrained by space, this option offers greater customization and a longer support period. It is not suitable for SFX cases due to its size. Choose this if you prioritize warranty length and smart lighting features over a compact footprint.
EVGA SuperNOVA GA 650W Power Supply
The EVGA SuperNOVA GA 650W is an ATX unit, so it does not fit in SFX cases. It provides less power than the SilverStone 700W model but includes a 10-year warranty. It is fully modular and Gold rated, similar to the original in efficiency. This unit is intended for standard ATX builds where space is not a constraint. You should pick this alternative if you need a reliable, efficient power supply for a larger case and value a long warranty. It is not a drop-in replacement for small form factor systems.
EVGA SuperNOVA 850 GM SFX Power Supply
The EVGA SuperNOVA 850 GM matches the SFX form factor of the SilverStone unit, allowing it to fit in the same cases. It delivers 850 watts, which is 150 watts more than the original. It is fully modular and includes an ATX bracket for versatility. This unit also features an FDB fan with ECO Mode. It is ideal for high-power small form factor systems that require significant headroom. If you need maximum power in a compact size, this is a strong choice. It offers higher wattage while maintaining the small physical dimensions of the SilverStone model.
GAMEMAX 1050W ARGB Fully Modular PSU
This GAMEMAX unit is an ATX 3.0 power supply, making it physically larger than the compact SFX SilverStone. It provides 1050 watts of power, significantly more than the 700W original. It is fully modular and Gold rated. This unit is designed for high-wattage standard ATX gaming builds. It is not suitable for compact builds due to its size and weight. Choose this alternative if you have a large case and need maximum power for high-end GPUs. It sacrifices the small form factor for much higher output and modern ATX 3.0 compatibility.
The Lian Li 750W SFX shares the same form factor as the SilverStone unit, fitting directly into small form factor cases. It provides 750 watts, which is 50 watts more than the original. It is fully modular and Gold rated, similar to the SilverStone in efficiency and cable management. This model offers a dependable step up in power for compact systems. If you need slightly more capacity without changing your case, this is a viable option. It serves builders who want a reliable SFX power supply with a modest increase in wattage output.
Quick picks
Our 7 picks
SilverStone 700W SFX 80 Plus Gold Power Supply
Best for: compact small-form-factor builds needing 700W Gold power
- 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 Affiliate link
This SilverStone unit is a compact 700W SFX power supply designed for small-form-factor desktop builds. It features 80 PLUS Gold certified efficiency, fully modular flat cables, and all-Japanese capacitors. Its single +12V rail maintains tight 3 percent voltage regulation, while a 92mm fluid dynamic bearing fan provides active cooling starting at 18 dBA. It suits you if you need reliable power delivery and tidy cable routing in tight spaces.
Pros
- 80 PLUS Gold certified efficiency
- 100% modular flat flexible cables
- All-Japanese internal capacitors
- Single +12V rail with 3% voltage regulation
- 92mm FDB fan with 18 dBA minimum noise
Cons
- Not compatible with standard ATX mounting holes
- No passive zero-RPM mode; fan runs at minimum 18 dBA
Good fit if
- You need a dedicated SFX power supply with flexible flat modular cabling.
- You want 80 PLUS Gold efficiency with all-Japanese capacitors.
- You run a compact system requiring up to 700W of power.
Skip if
- You need standard ATX case mounting hole compatibility.
- You require 750W or higher power output for high-draw hardware.
- You want a zero-RPM fan mode that stays silent at idle.
Verdict: SilverStone 700W SFX Fully Modular PSU delivers reliable Gold-rated efficiency and tight voltage regulation for compact builds. It provides dependable power in a true SFX footprint without excess bulk.
Lian Li SP 750W Gold SFX Power Supply
Best for: compact builds needing 750-watt Gold modular power
- Wattage
- 750 WATT
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- Form Factor
- SFX
- Dimensions
- 10 × 8 × 5 inches
View on Amazon: Lian Li SP 750W Gold SFX Power Supply Affiliate link
The Lian Li SP 750W SFX Power Supply delivers 750 watts of power in a compact SFX profile. It provides 80 Plus Gold efficiency to keep energy waste down. The fully modular design lets you connect only the cables you need for your small build. This unit fits your system if you want extra wattage headroom over standard 700 watt units in tight cases.
Pros
- 750-watt power output
- 80 Plus Gold efficiency rating
- Fully modular cable design
- Compact SFX form factor
Cons
- Lower wattage ceiling than 850W alternatives
- No higher efficiency tier than 80 Plus Gold
Good fit if
- You need a 750-watt power supply designed for an SFX enclosure.
- You want fully modular cabling to keep interior case clutter minimal.
Skip if
- You need 850 watts or more for higher-draw components.
- You require 80 Plus Platinum or Titanium efficiency levels.
Verdict: Lian Li SP 750W SFX Power Supply delivers 750 watts of 80 Plus Gold power in a fully modular SFX package. It serves as a balanced option when your compact build requires more headroom than a 700-watt supply.
Seasonic FOCUS GX-650 650W Gold
Best for: quiet ATX gaming builds with moderate power needs
- Wattage
- 650W
- Efficiency Rating
- 80+ Gold
- Modularity
- Full-Modular
- Warranty
- 10 Year
- Recommended Use
- Gaming
- Dimensions
- 5.51 × 5.91 × 3.39 inches
View on Amazon: Seasonic FOCUS GX-650 650W Gold Affiliate link
The Seasonic Focus GX-650 is a 650W fully modular power supply with 80 Plus Gold efficiency. It features a 140 mm depth suitable for all ATX cases. You get three fan modes: fanless, silent, and cooling. The unit weighs 3.31 pounds and includes a 10-year warranty. This model suits gamers seeking quiet operation and reliable power delivery in standard builds.
Pros
- 80 Plus Gold efficiency reduces energy waste
- Fully modular cables reduce clutter
- Three fan control modes for silence or cooling
- 10-year warranty for long-term reliability
- Compact 140 mm depth fits all ATX systems
Cons
- 650W output is lower than the 750W and 850W options on this list
- 5.51-inch length is bulkier than the SFX form factor used by the top picks
Good fit if
- You want a quiet system with fanless idle operation
- You need a fully modular design for cable management
- You build in standard ATX cases with space for a 140 mm unit
Skip if
- You require more than 650W of power for high-end components
- You are building in a small form factor case that only accepts SFX units
- You prefer a fully silent unit without any fan control options
Verdict: The Seasonic Focus GX-650 650W Gold offers solid efficiency and flexible fan modes for standard ATX builds. It fits users who prioritize silence and cable management over maximum wattage or compact SFX sizing.
Thermaltake Toughpower iRGB Plus 750W Gold PSU
Best for: Standard ATX cases with smart lighting needs
- Wattage
- 750W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX12V V2.4
- Fan Size
- 140mm
- Warranty
- 10 Year
View on Amazon: Thermaltake Toughpower iRGB Plus 750W Gold PSU Affiliate link
This 750W fully modular power supply delivers 80 Plus Gold efficiency. It features a 140mm fan with RGB lighting and smart zero fan technology that activates at 30% load. You get app control for monitoring and lighting via Alexa and Razer Chroma. The unit includes a 10-year warranty. It suits builders who want smart features and aesthetic customization in a standard ATX form factor.
Pros
- 80 Plus Gold efficiency rating
- Fully modular cable design
- 10-year warranty coverage
- 140mm RGB fan with smart zero mode
- App and Alexa control support
Cons
- ATX form factor, not SFX
- Heavier build at 5 pounds
- Requires software for full features
Good fit if
- You need a standard ATX PSU
- You want smart lighting control
- You prefer a long warranty
Skip if
- You are building a small form factor PC
- You want a compact SFX unit
- You prefer plug-and-play simplicity
Verdict: Thermaltake Toughpower iRGB Plus 750W ATX is a smart choice for standard cases where you want app-controlled lighting and a long warranty. It fits builders who prioritize customization over compact size.
EVGA SuperNOVA GA 650W Power Supply
Best for: Standard ATX cases needing high efficiency
- Wattage
- 650W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- Warranty
- 10 Year
- Dimensions
- 11.8 × 9 × 4.8 inches
- Weight
- 4.4 pounds
View on Amazon: EVGA SuperNOVA GA 650W Power Supply Affiliate link
The EVGA SuperNOVA 650 Ga delivers 650W of power with 80 Plus Gold efficiency. It is fully modular, allowing you to connect only the cables you need. The unit uses Japanese capacitors and a double ball bearing fan for stability. It includes an ECO mode for quiet operation. This compact 650W unit suits users who prioritize efficiency and reliability in a smaller form factor.
Pros
- 80 Plus Gold certification for high efficiency
- Fully modular cable design
- 10-year warranty coverage
- ECO mode for silent operation
Cons
- Lower 650W output compared to 750W+ competitors
- Heavier at 4.4 pounds
- Larger physical dimensions than SFX units
Good fit if
- You need high efficiency for a standard ATX case
- You want a long warranty for peace of mind
- You prefer fully modular cable management
Skip if
- You require an SFX form factor for small builds
- You need more than 650W of power
- You want a lighter power supply for easy transport
Verdict: EVGA SuperNOVA 650 Ga 650W is a solid choice for standard ATX builds needing reliable, efficient power. It fits users who value a 10-year warranty and modular cabling over compact SFX sizing.
EVGA SuperNOVA 850 GM SFX Power Supply
Best for: high-power small-form-factor systems
- Wattage
- 850W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- Warranty
- 10 Year
- Form Factor
- SFX
- Dimensions
- 4.92 × 4.92 × 2.48 inches
View on Amazon: EVGA SuperNOVA 850 GM SFX Power Supply Affiliate link
The EVGA SuperNOVA 850 GM is an 850W SFX power supply designed for compact computer builds. It delivers an 80 PLUS Gold efficiency rating and features a fully modular cable layout, an FDB fan with ECO Mode, and 100% Japanese capacitors. An included ATX mounting bracket lets you install it into larger cases. This unit suits you if you need high wattage and long-term coverage in a small-form-factor setup.
Pros
- 850W capacity with 80 PLUS Gold efficiency
- 10-year warranty coverage
- Fully modular cable design
- Includes bracket for ATX chassis mounting
- 100% Japanese capacitors and FDB fan with ECO Mode
Cons
- Efficiency rating tops out at 80 PLUS Gold rather than Platinum
- Total unit weight is 4 pounds
Good fit if
- You need 850W of power for a compact SFX build.
- You want a 10-year warranty with 100% Japanese capacitors.
- You want the option to mount an SFX unit in an ATX chassis.
Skip if
- You need an efficiency rating higher than 80 PLUS Gold.
- You have lower power requirements that do not warrant 850W.
Verdict: EVGA SuperNOVA 850 GM 850W SFX Power Supply provides 850W output and fully modular cabling backed by a 10-year warranty. Its included ATX bracket and FDB fan with ECO Mode add versatility to small-form-factor builds.
GAMEMAX 1050W ARGB Fully Modular PSU
Best for: High-wattage standard ATX gaming builds
- Wattage
- 1050W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.0
- PCIe Connector Type
- 12VHPWR 16pin
- Fan Size
- 140mm
View on Amazon: GAMEMAX 1050W ARGB Fully Modular PSU Affiliate link
This GAMEMAX unit delivers 1050W of power in a standard ATX form factor. It carries an 80 Plus Gold efficiency rating and supports ATX 3.0 standards. The design includes a 140mm fan for cooling and fully modular cabling. You get a 12VHPWR connector for modern graphics cards. This model suits builders needing high wattage and RGB lighting in a standard case.
Pros
- 1050W output capacity
- 80 Plus Gold efficiency
- ATX 3.0 and PCIe 5.0 ready
- 12VHPWR 16-pin connector included
- Fully modular cable design
Cons
- Large ATX form factor limits small case compatibility
- Heavy at 3.53 pounds
- No mention of zero-RPM fan mode
Good fit if
- You need high wattage for extreme gaming builds
- You have a standard ATX mid-tower or full-tower case
- You want RGB lighting synced with your motherboard
Skip if
- You are building in a small form factor case
- You require a smaller 120mm fan unit
- You need a power supply under 3 pounds
Verdict: GAMEMAX 1050W ATX 3.0 Gold fits users with large cases who need maximum power for high-end GPUs. It is not suitable for compact builds due to its size and weight.
Specifications side by side
| Spec | SilverStone 700W SFX 80 Plus Gold Power Supply | Lian Li SP 750W Gold SFX Power Supply | Seasonic FOCUS GX-650 650W Gold | Thermaltake Toughpower iRGB Plus 750W Gold PSU | EVGA SuperNOVA GA 650W Power Supply | EVGA SuperNOVA 850 GM SFX Power Supply | GAMEMAX 1050W ARGB Fully Modular PSU |
|---|---|---|---|---|---|---|---|
| Wattage | 700W | 750 WATT | 650W | 750W | 650W | 850W | 1050W |
| Efficiency Rating | 80 PLUS Gold | 80 Plus Gold | 80+ Gold | 80+ Gold | 80 Plus Gold | 80 PLUS Gold | 80 Plus Gold |
| Modularity | Fully Modular | Fully Modular | Full-Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular |
| ATX Version | not stated | not stated | not stated | ATX12V V2.4 | not stated | not stated | ATX 3.0 |
| PCIe Connector Type | not stated | not stated | not stated | not stated | not stated | not stated | 12VHPWR 16pin |
| Fan Size | 92mm | not stated | not stated | 140mm | not stated | not stated | 140mm |
| Warranty | not stated | not stated | 10 Year | 10 Year | 10 Year | 10 Year | not stated |
| Form Factor | SFX | SFX | not stated | not stated | not stated | SFX | ATX |
| Recommended Use | not stated | not stated | Gaming | not stated | not stated | not stated | Gaming |
| Size | 700W | not stated | 650W | 750W | 650W | 850W | ARGB PRO SERIES |
| Dimensions | 4.92 × 3.94 × 2.5 inches | 10 × 8 × 5 inches | 5.51 × 5.91 × 3.39 inches | 6.3 × 5.9 × 3.4 inches | 11.8 × 9 × 4.8 inches | 4.92 × 4.92 × 2.48 inches | 6.61 × 5.91 × 3.35 inches |
| Weight | 3.09 pounds | not stated | 3.31 pounds | 5 pounds | 4.4 pounds | 4 pounds | 3.53 pounds |
| Color | Black?Lead-Free Paint? | Black | not stated | Gold | not stated | not stated | not stated |
| Model | SST-SX700-G | SP750 WHITE | FOCUS GX-650 | PS-TPI-0750F3FDGU-1 | 220-GA-0650-X1 | 123-GM-0850-X1 | GMX-RGB-1050PRO |
If you need compact CPU cooling for your build, silverstone sst ar06 alternatives outline height and socket clearance specifications.
Frequently asked questions
Which SFX power supply offers the highest wattage?
The EVGA SuperNOVA 850 GM provides 850 watts of output, making it the highest-wattage option in this list. It maintains the compact SFX form factor while delivering fully modular cabling. This unit also includes an ATX bracket and features an FDB fan with ECO Mode for efficient operation.
Is there a fully modular SFX option with more than 700 watts?
Yes, the Lian Li SP 750W Gold delivers 750 watts in a fully modular SFX package. It shares the same physical footprint as the SilverStone unit but provides extra headroom for demanding components. This makes it a suitable direct replacement for builds requiring slightly more power within a small case.
Which power supply is best for standard ATX cases?
The GAMEMAX 1050W ARGB is designed for high-wattage standard ATX gaming builds. It features ATX 3.0 compatibility and fully modular cabling. This unit is not suitable for compact builds due to its larger dimensions and weight, which are intended for larger chassis that can accommodate standard ATX form factors.
Does the Lian Li SP 750W fit in small form factor cases?
The Lian Li SP 750W Gold is built for the SFX form factor, ensuring it fits in compact cases. It measures 8 inches in width, 5 inches in height, and 10 inches in length. This design allows it to serve as a balanced option when your compact build requires more power than a 700-watt supply.
Which option includes app-controlled lighting features?
The Thermaltake Toughpower iRGB Plus 750W ATX includes smart lighting controlled via an app. It offers 750 watts of power in a standard ATX size with fully modular cabling. This unit is ideal for standard cases where customization is a priority over the compact sizing found in SFX units.
Which power supply is recommended for quiet gaming builds?
The Seasonic FOCUS GX-650 650W Gold is recommended for quiet ATX gaming builds. It offers solid efficiency and flexible fan modes to prioritize silence. This unit fits users who value cable management and acoustic performance over the maximum wattage or compact SFX sizing required for small form factor systems.