CORSAIR CX750M 80 Plus Bronze Semi-Modular Low-Noise ATX 750 Watt Power Supply - NA - Black
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AI Verdict
A 750-watt 80 Plus Bronze semi-modular ATX power supply for mid-range PC builds, not high-end overclocked systems.
This 750-watt 80 Plus Bronze semi-modular power supply is a decent choice for mid-range PC builds, offering enough power for many single-GPU setups and easier cable management than non-modular units. However, its Bronze efficiency and lack of ATX 3.0 support mean it's not the most efficient or future-proof option available.
For higher efficiency, better stability under heavy loads, and future compatibility, look for PSUs with 80 Plus Gold or Platinum certification and ATX 3.0 support.
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Pros
- Delivers 750 watts of power, suitable for systems with a single demanding GPU like an RTX 3080.
- Features 80 PLUS Bronze certification, ensuring at least 82% efficiency at 100% load.
- Semi-modular cabling allows for connecting only necessary cables, aiding in cleaner PC builds.
- Equipped with a rifle bearing fan, designed for lower noise output and extended lifespan compared to conventional bearings.
- Includes Dual EPS12V connectors, providing ample CPU power for modern motherboards.
- Backed by a five-year warranty, offering a decent period of coverage.
Cons
- Lacks ATX 3.0 compatibility and PCIe Gen 5 connectors, making it less future-proof for upcoming high-power GPUs.
- 80 Plus Bronze efficiency is below higher-tier Gold or Platinum units, potentially leading to more wasted energy and heat.
- Some users report the unit can shut down under sustained loads approaching 650W, especially in warmer environments above 30°C.
- The ATX 24-pin and one EPS cable are permanently attached, limiting full modularity for ultimate cable management.
- Distance between 4-pin Molex connectors is only 100mm, which can be restrictive for certain peripheral layouts.
Dimension Scores
The 80 Plus Bronze certification is average, and while it offers 750W, some users report shutdowns around 650W under higher temperatures.
The rifle bearing fan contributes to low-noise operation, with a Cybenetics Standard++ rating of 30-35 dB[A], which is above average for its price band.
While Corsair states Japanese capacitors, a review found Elite and APAQ caps, and some users reported early unit failures, despite a 5-year warranty.
Semi-modular design improves cable management over non-modular units, but fixed ATX and EPS cables, plus short Molex spacing, prevent a perfect score.
Best For
- Mid-range gaming PC builds with a single GPU like an RTX 2080 Super or 3080.
- Basic system builds that do not consistently exceed 650 watts of power draw.
- Users on a budget prioritizing wattage and semi-modularity over top-tier efficiency or advanced features.
Not Recommended For
- High-end gaming PCs with multiple GPUs or heavily overclocked components that demand consistent power close to 750W.
- Systems requiring ATX 3.0 or PCIe Gen 5 connectors for the newest generation of graphics cards.
- Enthusiasts seeking near-silent operation, as it's rated Cybenetics Standard++ (30-35 dB[A]).
Watch Out For
- Some users experienced unit failure within a month of purchase, necessitating a warranty replacement.
- Despite a 750W rating, the PSU may shut down at loads around 650W if ambient temperatures exceed 30°C.
- The product description claims 'Japanese capacitors,' but a review found filtering caps by Elite and APAQ, not Japanese manufacturers.
- The absence of ATX 3.0 and PCIe Gen 5 connectors means it's not ready for the power demands and new cabling of future GPUs.
Full Specifications
| ASIN | B093ND8LML |
| Brand | Corsair |
| Color | Black |
| Series | CX750M |
| Wattage | 750 watts |
| Model Name | CX750M |
| Form Factor | ATX |
| Item Weight | 3.3 pounds |
| Manufacturer | Corsair |
| Connector Type | PCI Express |
| Cooling Method | Air |
| Output Wattage | 750 |
| Item model number | CP-9020222-NA |
| Compatible Devices | Personal Computer |
| Product Dimensions | 5.51 x 5.91 x 3.39 inches |
| Item Dimensions LxWxH | 5.51 x 5.91 x 3.39 inches |
| Item dimensions L x W x H | 5.51 x 5.91 x 3.39 inches |
What Buyers Say
Many users picked up this 750W unit because it seemed like a budget-friendly option for its wattage, with several successfully powering demanding GPUs like an RTX 3080 or 2080 Super for years. However, there's a recurring concern that it might not handle sustained loads near its 750W limit, especially in warmer PC cases, with some reports of units shutting down around 650W. The claim of 'Japanese capacitors' in the product description also clashes with a technical review finding Elite and APAQ brand capacitors for filtering.
“I bought this CX750M 'cause it was cheap for 750W, and it's been running my RTX 2080 Super fine, but man, I wish all the cables came off, and I'm always a little nervous pushing it hard in the summer.”
Common Praise
- Semi-modular cabling makes for a much tidier build compared to fully non-modular PSUs.
- Operates quietly, with users noting they barely hear the fan even under load.
- Provides enough power for single high-end GPUs like the RTX 3080 without issue for many users.
- The 5-year warranty offers peace of mind for a budget-oriented component.
- Easy to install and connect, with clearly marked modular ports.
Common Complaints
- Not truly designed for high-end, heavily overclocked systems despite the 750W rating.
- Can unexpectedly shut down when pushed close to its maximum wattage, particularly in warmer conditions.
- Lacks ATX 3.0 and PCIe Gen 5 connectors, making it outdated for the newest GPU generations.
- The main ATX and one EPS cable are not detachable, which can still clutter smaller cases.
- Some users received faulty units that failed within a short period, requiring warranty claims.
Ownership Tips
- The fan is surprisingly quiet, often unnoticeable even during gaming sessions.
- Cable management is definitely easier than with my old non-modular PSU, even with the fixed main cables.
- Some users have had these running for many years, proving their longevity for appropriate builds.
- The fixed 24-pin and 8-pin CPU cables can be a tight squeeze and hard to hide in smaller form factor cases.
- It's a good idea to leave some headroom and not run it consistently at 90%+ load, especially if your case airflow isn't top-tier.
Frequently Asked Questions
Is the CORSAIR CX750M a fully modular power supply?
No, it is a semi-modular power supply. The ATX 24-pin motherboard cable and one EPS12V CPU power cable are permanently attached.
How quiet is the CORSAIR CX750M during operation?
It uses a rifle bearing fan designed for low-noise operation. It has a Cybenetics Standard++ noise rating, typically between 30-35 dB[A].
Can this 750W PSU power an RTX 3080 graphics card?
Yes, users have reported successfully powering an RTX 3080 with this power supply.
Does the CX750M support ATX 3.0 for new graphics cards?
No, this power supply does not support ATX 3.0 or include the new PCIe Gen 5 connectors required by some of the latest GPUs.
What is the warranty period for the CORSAIR CX750M?
The CORSAIR CX750M comes with a five-year manufacturer's warranty.
Buying Guide
When you're looking at a power supply, you're basically picking the heart of your PC. You need enough wattage to power all your components, especially your graphics card. The efficiency rating, like 80 Plus Bronze, tells you how much power is wasted as heat; higher ratings mean less waste. Modularity affects how many cables you have to deal with inside your case, which impacts airflow and aesthetics.
Wattage (750 watts)
This is the total power your PSU can deliver. Think of it like the horsepower of a car; if your PC components (CPU, GPU, drives) need 600W, a 750W PSU gives you some breathing room, but pushing it too close to its limit can cause instability or shutdowns, especially with budget units.
80 PLUS Bronze certification
This is an efficiency rating. Bronze means the PSU is at least 82% efficient at 100% load, meaning 18% of the power it draws from the wall is lost as heat. Higher ratings like Gold or Platinum waste less power, saving you a tiny bit on your electricity bill and generating less heat inside your PC.
Semi-Modular
This refers to the cables. With a semi-modular PSU, the essential cables (like the main motherboard power) are permanently attached, but you can plug in or remove other cables (for your GPU, hard drives) as needed. This helps keep your PC case tidier and improves airflow compared to a non-modular unit, where all cables are fixed.
Alternatives
If this unit doesn't quite fit, consider looking for power supplies with 80 Plus Gold or Platinum efficiency for less heat and power waste, fully modular cabling for maximum tidiness, and ATX 3.0 compatibility with PCIe Gen 5 connectors for future-proofing with the newest graphics cards.
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