Corsair CX-M Series Alternatives: 6 Similar Picks Compared
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
The Corsair CX-M Modular Power Supply delivers certified 80 Plus Bronze efficiency alongside modular cable management for custom desktop configurations. When evaluating corsair cx m series alternatives, you might require a different brand, a different capacity, or an alternative form factor. The original Corsair CX-M model provides a 750-watt output, but your specific setup may require a lower-capacity 500W or 650W unit, or a compact SFX power supply designed for smaller computer cases.
This guide compares 6 options selected specifically because their hardware specifications overlap with the original CX-M power supply. Every featured model maintains an 80 Plus Bronze efficiency rating, providing comparable energy efficiency across different brands like EVGA, FSP, and SilverStone. These alternatives also offer semi-modular cabling or compact physical footprints, with continuous output ratings ranging from 300W to 750W. Evaluating these published specifications helps you identify the proper wattage, cable layout, and physical dimensions for your system.
Corsair CX-M Alternatives Compared
EVGA SuperNOVA 750W Bronze Power Supply
The EVGA SuperNOVA matches the 750W output and 80 Plus Bronze efficiency rating of your Corsair CX-M. It gives you Japanese capacitors, hardware safety protections, and a multi-rail power delivery design. It uses a hybrid modular layout rather than the standard modular setup of the Corsair unit. At 7.1 inches long and 7 pounds, the EVGA chassis requires significantly more internal clearance than typical power supplies. You give up the compact casing depth of smaller units. Choose this EVGA power supply if you run a high-draw desktop build with sufficient chassis space and you want multi-rail Bronze power backed by Japanese capacitors.
EVGA 650 BQ 650W Semi-Modular PSU
The EVGA 650 BQ provides certified 80 Plus Bronze efficiency with a specified 5-year warranty and a large 140 mm cooling fan. Its physical casing measures 5.51 inches long, making it easy to fit into standard desktop cases. Compared to your 750W Corsair CX-M, you give up 100 watts of maximum capacity and switch from a fully modular setup to a semi-modular cable design. You also manage fixed core wires alongside detachable cables. You should pick the EVGA 650 BQ if you are assembling a mid-range desktop gaming system that does not require 750 watts and you want the protection of a documented five-year warranty.
EVGA 500 BQ 500W Semi-Modular Power Supply
The EVGA 500 BQ shares the 80 Plus Bronze efficiency standard of the Corsair CX-M while weighing only 1.1 pounds in a compact 5.51-inch housing. It offers a semi-modular cable layout that lets you disconnect optional leads to keep your build tidy. However, you give up 250 watts of headroom compared to the 750W Corsair, which limits your capability for high-power graphics hardware. You also give up full modularity because essential motherboard cables remain attached. You should choose this EVGA 500 BQ unit if you are building an entry-level or mid-tier PC where a 500-watt power ceiling covers all of your hardware requirements.
FSP SFX Pro 450W Bronze Power Supply
The FSP SFX Pro 450W delivers 80 Plus Bronze efficiency with DC-to-DC conversion in an ultra-compact SFX footprint measuring 5 by 4 by 2.5 inches. It includes an ATX bracket so you can install it into standard PC cases or small-form-factor enclosures. In exchange for this installation flexibility, you give up 300 watts of output compared to the 750-watt Corsair CX-M. You also give up modular cable connections, meaning you must manage all attached wires inside your case. Select this FSP power supply if you are assembling a compact desktop build that stays within a 450-watt limit and needs small-form-factor sizing with ATX adaptability.
SilverStone 450W SFX Bronze Power Supply
The SilverStone SST-ST45SF-V3-USA offers 80 Plus Bronze efficiency designed for SFX enclosures and small-footprint builds that adapt to standard ATX cases. Its SFX form factor allows installation in tight chassis where a full-sized Corsair CX-M cannot fit. Going with this SilverStone model means giving up 300 watts of overall capacity compared to the 750-watt Corsair. You also sacrifice modular cable flexibility, requiring you to route all bundled cables inside small spaces. You should choose this SilverStone power supply if you are configuring a space-constrained or small-form-factor PC that runs on modest power demands up to 450 watts and requires SFX dimensions.
SilverStone 300W SFX Bronze Power Supply
The SilverStone SST-ST30SF V2 provides 80 Plus Bronze efficiency tailored for continuous 24/7 operation in an ultra-compact SFX footprint measuring 4.92 by 3.94 by 2.5 inches. It includes an ATX bracket for flexible mounting across chassis types. Choosing this unit means giving up 450 watts of capacity compared to the 750W Corsair CX-M, along with the Corsair model's modular cabling convenience. You cannot run high-end graphics cards on this 300W unit. Pick this SilverStone power supply if you need steady continuous power for a low-wattage, small-form-factor build or an always-on desktop that does not demand heavy graphics hardware.
Quick picks
Our 7 picks
Corsair CX-M Modular Power Supply
Best for: modular cable management on Bronze builds
- Efficiency Rating
- 80 Plus Bronze
- Modularity
- Modular
The Corsair CX750M is a modular power supply rated for 80 Plus Bronze efficiency. This renewed unit provides standard power delivery in a black casing for your desktop build. Its modular cabling helps you connect only the leads you require, reducing clutter inside your chassis. If you need an 80 Plus Bronze unit to run your PC, this supply delivers those core specifications.
Pros
- 80 Plus Bronze efficiency rating
- Modular cable design
- Black finish matches standard cases
Cons
- Renewed condition rather than brand new
- Efficiency limited to 80 Plus Bronze standard
Good fit if
- You need a modular power supply to manage internal cables.
- You want an 80 Plus Bronze certified unit for your system.
- You are comfortable purchasing a renewed component.
Skip if
- You require efficiency ratings higher than 80 Plus Bronze.
- You want a brand-new factory-sealed unit.
Verdict: Corsair CX750M Modular 80 Plus Bronze PSU delivers certified Bronze efficiency alongside modular cable management. It covers the core requirements if you want a renewed Corsair power supply.
EVGA SuperNOVA 750W Bronze Power Supply
Best for: high-draw systems needing multi-rail Bronze power
- Wattage
- 750W
- Efficiency Rating
- 80PLUS Bronze
- Modularity
- Hybrid Modular
- Dimensions
- 7.1 × 5.9 × 3.4 inches
- Weight
- 7 pounds
The EVGA SuperNOVA 750W Hybrid Modular PSU delivers up to 750W of continuous power with 80 PLUS Bronze efficiency. It features a multi-rail architecture, Japanese capacitors, and hybrid modular cabling that lets you detach unused lines. This unit suits you if you run a standard mid-tower or full-tower build that demands strong circuit protection and dedicated high-amperage rails for your components.
Pros
- 750W capacity with up to 85% typical efficiency
- Hybrid modular cabling reduces internal case clutter
- Built with Japanese brand capacitors
- Comprehensive protection suite including OVP, UVP, OCP, OPP, SCP, and OTP
Cons
- 7.1-inch chassis length requires substantial case clearance
- Hybrid design leaves main cables permanently attached
Good fit if
- You need 750W of power with a multi-rail configuration.
- You want Japanese capacitors paired with full hardware protections.
Skip if
- You require a fully modular cable design.
- You have a compact case unable to accommodate a 7.1-inch depth.
Verdict: EVGA SuperNOVA 750W Hybrid Modular PSU provides high continuous wattage backed by extensive hardware safety protections and Japanese capacitors. It is a capable option if your chassis has the depth for a 7.1-inch unit.
EVGA 650 BQ 650W Semi-Modular PSU
Best for: mid-range desktop gaming systems
- Wattage
- 650W
- Efficiency Rating
- 80+ Bronze
- Modularity
- Semi Modular
- Fan Size
- 140 millimeter
- Warranty
- 5 Year
- Dimensions
- 5.51 × 5.91 × 3.35 inches
The EVGA BQ 650W Semi-Modular Power Supply serves as an alternative to Corsair CX-M units for mid-range desktop builds. You get 650 watts of output with 80 Plus Bronze efficiency, maintaining at least 85 percent efficiency under typical system loads. Its semi-modular design keeps core power lines fixed while letting you detach unused peripheral cables. This model suits you if you run a dedicated graphics card and need standard ATX power with five years of warranty coverage.
Pros
- 650W output with 80 Plus Bronze certification (85% typical efficiency)
- Large 140 mm fan with Teflon nano-steel bearing
- Semi-modular cabling allows removal of unused peripheral wires
- Comprehensive protection suite: OVP, UVP, OCP, OPP, and SCP
- 5-year warranty coverage
Cons
- Fixed core cables cannot be detached
- 80 Plus Bronze rating offers lower efficiency than Gold units
- 650W capacity limits headroom for high-draw hardware
Good fit if
- You need 650W of continuous power for a mid-tier gaming rig.
- You want a 140 mm cooling fan for steady thermal management.
- You prefer a 5-year warranty on an 80 Plus Bronze supply.
Skip if
- You require a fully modular unit to detach every cable.
- You want 80 Plus Gold or higher electrical efficiency.
Verdict: EVGA BQ 650W Semi-Modular Power Supply gives you 650-watt delivery with a large 140 mm fan and five-year warranty backing. It is a capable substitute for builders looking for semi-modular Bronze power.
EVGA 500 BQ 500W Semi-Modular Power Supply
Best for: budget and mid-tier 500W builds
- Wattage
- 500W
- Efficiency Rating
- 80+ Bronze
- Modularity
- Semi Modular
- Fan Size
- 120 millimeter
- Warranty
- 3 Year
- Dimensions
- 5.51 × 5.91 × 3.35 inches
The EVGA 500 BQ is a 500W semi-modular power supply built for mid-range and budget systems. It provides 80 Plus Bronze efficiency, reaching at least 85 percent under typical loads. A 120-millimeter fluid dynamic bearing fan handles cooling with quiet operation, while semi-modular cabling lets you leave unused peripheral lines out of your case. It suits you if you need reliable baseline wattage with essential electrical protections like OVP, UVP, and SCP.
Pros
- 80 Plus Bronze certified with at least 85% typical efficiency
- Semi-modular cabling helps reduce case clutter
- 120mm fluid dynamic bearing fan for quiet operation
- Heavy-duty protections including OVP, UVP, OCP, OPP, and SCP
Cons
- Limited to 500W total capacity
- 3-year warranty is shorter than some competing units
Good fit if
- You need a 500W power supply for an entry or mid-tier PC build.
- You want semi-modular cabling to keep excess wires out of your case.
- You prefer quiet cooling via a 120mm fluid dynamic bearing fan.
Skip if
- You require more than 500W for high-power graphics cards.
- You want fully modular cabling or a warranty longer than 3 years.
Verdict: EVGA 500 BQ 500W Semi-Modular PSU delivers reliable 80 Plus Bronze efficiency and semi-modular cabling for lower-wattage builds. It serves as a direct, practical alternative to entry-level CX-M units.
FSP SFX Pro 450W Bronze Power Supply
Best for: Compact PC builds needing ATX adapter flexibility
- Wattage
- 450W
- Efficiency Rating
- 80 PLUS Bronze
- Dimensions
- 5 × 4 × 2.5 inches
- Weight
- 2.69 pounds
The FSP SFX Pro 450W is a compact SFX power supply featuring 80 PLUS Bronze efficiency and a DC-to-DC structure for stable voltage regulation. Delivering 450 watts of output, it includes flat black ribbon cables and an intelligent temperature-controlled sleeve fan. If you build inside small-form-factor enclosures or standard cases via the bundled SFX-to-ATX adapter bracket, this unit supplies essential daily power for your lower-draw system.
Pros
- 80 PLUS Bronze certified electrical efficiency
- DC-to-DC structure for stable voltage regulation
- Includes SFX-to-ATX adapter bracket for standard chassis
- All-black ribbon cables suited for compact routing
Cons
- 450W capacity limits high-draw hardware configurations
- Equipped with a basic sleeve fan bearing
Good fit if
- You need an SFX form factor power supply with an included ATX mounting bracket.
- You run a small-form-factor or budget system that requires 450W or less.
- You want flat ribbon cables for streamlined routing in confined cases.
Skip if
- You need more than 450W of power for demanding graphics cards or processors.
- You want a cooling fan with fluid dynamic bearings.
Verdict: FSP SFX Pro 450W 80 Plus Bronze PSU delivers dependable small-form-factor power with DC-to-DC conversion and included ATX bracket flexibility. It serves compact builds that stay well within a 450W power envelope.
SilverStone 450W SFX Bronze Power Supply
Best for: compact SFX and ATX small-footprint builds
- Wattage
- 450W
- Efficiency Rating
- 80 Plus Bronze
- Form Factor
- SFX
- Dimensions
- 9 × 7 × 4 inches
The SilverStone 450W SFX Bronze Power Supply delivers 450 watts of continuous output with 80 Plus Bronze efficiency. It operates on a single +12V rail rated at 36A and supports 24/7 operation at continuous load temperatures up to 40°C. Because it uses the compact SFX form factor and includes an ATX mounting bracket, you can install it in small-form-factor builds or standard cases needing a lower-wattage power supply.
Pros
- Supports SFX cases and includes an ATX mounting bracket
- Single +12V rail delivers 36A of continuous output
- 80 Plus Bronze efficiency rating
- Rated for 24/7 continuous operation
Cons
- 450W maximum output limits component selection
- No modular cable design listed in specifications
Good fit if
- You are building a compact PC that requires an SFX power supply.
- You want a 450W unit with an included bracket to fit an ATX mount.
Skip if
- You require more than 450W for high-draw graphics cards.
- You need a modular power supply to minimize interior cabling.
Verdict: SilverStone 450W SFX Bronze Power Supply delivers steady 450W continuous power in a compact SFX footprint that adapts to ATX chassis. It is a dependable choice for compact builds with modest power demands.
SilverStone 300W SFX Bronze Power Supply
Best for: compact, low-wattage desktop and 24/7 systems
- 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 300 watts of continuous power at 40 degrees Celsius with an 80 Plus Bronze efficiency rating. Designed in the compact SFX form factor, it includes an ATX mounting bracket and a 92mm cooling fan. You get a single +12V rail setup built for continuous 24/7 operation. It suits you if you need a low-wattage alternative for a compact mini-ITX enclosure or an entry-level desktop system.
Pros
- Includes an ATX adapter bracket for standard chassis compatibility
- Rated for 300W continuous output at 40°C for 24/7 operation
- 80 Plus Bronze certified efficiency
- Fitted with a 92mm silent cooling fan
Cons
- Maximum continuous capacity is limited to 300W
- No modular cable connections listed
Good fit if
- You build a low-power system that operates on 300 watts or less.
- You need an SFX unit that fits small cases or standard ATX mounts.
- You run a continuous 24/7 setup in operating conditions up to 40°C.
Skip if
- You run high-draw graphics cards requiring more than 300W capacity.
- You require modular cables to manage case clutter.
Verdict: SilverStone 300W SFX Bronze Power Supply delivers steady, low-capacity output in a versatile form factor with an included ATX bracket. It provides a reliable option for low-demand builds requiring continuous operation.
Specifications side by side
| Spec | Corsair CX-M Modular Power Supply | EVGA SuperNOVA 750W Bronze Power Supply | EVGA 650 BQ 650W Semi-Modular PSU | EVGA 500 BQ 500W Semi-Modular Power Supply | FSP SFX Pro 450W Bronze Power Supply | SilverStone 450W SFX Bronze Power Supply | SilverStone 300W SFX Bronze Power Supply |
|---|---|---|---|---|---|---|---|
| Wattage | not specified | 750W | 650W | 500W | 450W | 450W | 300W |
| Efficiency Rating | 80 Plus Bronze | 80PLUS Bronze | 80+ Bronze | 80+ Bronze | 80 PLUS Bronze | 80 Plus Bronze | 80 Plus Bronze |
| Modularity | Modular | Hybrid Modular | Semi Modular | Semi Modular | not specified | not specified | not specified |
| Fan Size | not specified | not specified | 140 millimeter | 120 millimeter | not specified | not specified | 92mm |
| Warranty | not specified | not specified | 5 Year | 3 Year | not specified | not specified | not specified |
| Form Factor | not specified | not specified | not specified | not specified | not specified | SFX | SFX |
| Size | not specified | not specified | 650W | 500W | 450W | 450W | 300W V2 |
| Dimensions | not specified | 7.1 × 5.9 × 3.4 inches | 5.51 × 5.91 × 3.35 inches | 5.51 × 5.91 × 3.35 inches | 5 × 4 × 2.5 inches | 9 × 7 × 4 inches | 3.94 × 4.92 × 2.5 inches |
| Weight | not specified | 7 pounds | 5 pounds | 1.1 pounds | 2.69 pounds | not specified | not specified |
| Color | not specified | Black | not specified | not specified | 80 Plus Bronze | not specified | not specified |
| Model | not specified | 120-PB-0750-KR | 110-BQ-0650-V1 | 110-BQ-0500-K1 | PPA450AA01 | SST-ST45SF-V3-USA | SST-ST30SF V2 |
When planning case clearance alongside your power supply, you can assess specs for corsair icue link titan 360 alternatives.
Frequently asked questions
Which Corsair CX-M alternatives offer semi-modular cabling?
EVGA BQ models provide direct semi-modular alternatives to CX-M units. The EVGA 650 BQ and EVGA 500 BQ both feature semi-modular cable configurations, letting you detach surplus peripheral lines to minimize clutter inside your case. Both power supplies share the 80 Plus Bronze efficiency standard seen across the CX-M series, making them straightforward drop-in replacements for standard mid-tower ATX gaming desktop builds.
Can you replace an ATX Corsair CX-M with an SFX power supply?
Yes, you can replace a full-size ATX unit with an SFX model if an adapter bracket is included. Small-form-factor options like the FSP SFX Pro 450W and SilverStone 300W SFX include ATX mounting bracket flexibility. This hardware allows you to mount the smaller power supply chassis directly into standard ATX case cutouts while saving substantial internal clearance for airflow or compact routing.
What should you check regarding chassis clearance when switching from CX-M to the EVGA SuperNOVA 750W?
You must verify your chassis depth because the EVGA SuperNOVA 750W measures 7.1 inches long. Standard power supplies often measure around 5.5 inches, such as the EVGA BQ series. If your desktop case has tight drive bays or restricted basement shrouds, you will need to confirm adequate clearance for the 7.1-inch length alongside proper room to route modular cabling harnesses.
What is a suitable Corsair CX-M alternative for lower-power 500W systems?
The EVGA 500 BQ serves as a direct alternative for lower-demand configurations. It outputs 500 watts of continuous power while matching the 80 Plus Bronze efficiency rating of CX-M supplies. Its semi-modular cabling allows you to disconnect unnecessary cables to keep your enclosure clean. Measuring 5.51 inches in length, it fits standard enclosures without requiring specialized mounting adapters or extra clearance.
Which compact alternatives match the 80 Plus Bronze efficiency of the Corsair CX-M?
Several compact SFX units match 80 Plus Bronze efficiency, including the FSP SFX Pro 450W, SilverStone 450W SFX, and SilverStone 300W SFX. These units offer Bronze-certified efficiency in reduced physical footprints suitable for compact enclosures. The FSP model includes DC-to-DC conversion, while SilverStone supplies deliver steady continuous power for systems that do not need higher wattage loads typical of standard full-sized desktop configurations.
How does the fan size on the EVGA 650 BQ compare to standard alternatives?
The EVGA 650 BQ features a large 140 mm cooling fan within its 5.51-inch-long chassis. A larger fan diameter moves adequate airflow across internal components at lower rotational speeds compared to smaller fans. This cooling setup supports the unit's 650-watt delivery and 80 Plus Bronze efficiency, making it an effective thermal option when you evaluate mid-range desktop alternatives to Corsair CX-M units.
When should you consider an SFX power supply instead of a standard CX-M unit?
You should choose an SFX power supply when assembling a small-form-factor build or when you need extra breathing room in an ATX chassis. Options like the SilverStone 450W SFX and FSP SFX Pro 450W provide 80 Plus Bronze efficiency inside miniature dimensions. Because these units adapt to ATX chassis cutouts, you gain valuable open space inside your enclosure for tubing or cable management.