Rank #6 in Best PC Power Supply 2026: 10 Ranked, and the Specs That Don't Add Up
Corsair CX750 750W 80 Plus Bronze Non-Modular
Price and rating as shown on Amazon when we collected them. Both change.
The Corsair CX750 is a 750-watt, non-modular ATX power supply selling for £57.99, and it sits sixth in this guide. The bullet text promises 80 PLUS Bronze certification with up to 88% operational efficiency, guaranteed full continuous power, a 120mm thermally controlled low-noise fan, and a 125mm casing that it says fits almost all modern PC cases. Its Amazon rating is 4.5 out of 5 from 438 ratings, and 78 of those are five-star.
The row worth checking here is the input voltage. The spec table lists "Maximum Input Voltage: 230 Volts" and "Minimum Input Voltage: 230 Volts (AC)" — the same figure at both ends, so no tolerance band is stated at all. Where this listing does cross-check against itself, it holds: the 125mm length in the bullet text matches the 12.5 centimetres in the dimensions row, and "Output Wattage: 750" matches "Wattage: 750 watts". Everything on this page comes from the Amazon listing as it is written there — we have not tested the unit ourselves.
How those 438 ratings break down
An average hides its own shape. This is the spread behind the 4.5 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £57.99 |
|---|---|
| Rating | 4.5 out of 5 from 438 Amazon ratings |
| Output wattage | 750 watts |
| Efficiency | 80 PLUS Bronze, up to 88% operational efficiency |
| Cooling | One 120mm thermally controlled low-noise fan |
| Design | Non-modular, with black sleeved cables |
| Input voltage | 230 Volts minimum and 230 Volts maximum (as listed) |
| Dimensions | 12.5 x 15 x 8.6 centimetres, 125mm length in the bullet text; 2 kg |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Got this as a replacement for my dying HP Omen 25l power supply which was having booting issues and cmos errors.It works but you can't shut the Hp case as the cable for the hard drive sticks out so had to get a corsair 4000D Airflow case which solved this.Also had to manually stick the WiFi and Bluetooth to one of the front fans to work as didn't wanna buy a new one.”
Verified purchase“Very silent, Very cheap, Fan changes speeds depending on load which is nice but I barely hear it. Bought a 2nd one because of how impressed I was with the first. Both going strong. Great for 8pin GPU use.”
What it is up against
The rivals it was ranked against in Best PC Power Supply 2026: 10 Ranked, and the Specs That Don't Add Up.
Questions people ask
Is the Corsair CX750 modular?
No. The listing describes the CX750 as Non-Modular, with black sleeved cables and a black powder-coated casing.
What fan does the Corsair CX750 use?
One 120mm thermally controlled low-noise fan, which the listing says only spins at high speed when the power supply is under heavy stress.
What input voltage does the Corsair CX750 take?
The listing gives 230 Volts as the minimum input voltage and 230 Volts as the maximum, so a single figure is stated rather than a range.
How efficient is the Corsair CX750?
The listing states 80 PLUS Bronze certification, with up to 88% operational efficiency, generating less heat and lowering energy costs.
How long is the Corsair CX750?
The bullet text gives a 125mm length for an easy fit in almost all modern PC cases, and the dimensions row lists 12.5 x 15 x 8.6 centimetres.
Does the Corsair CX750 deliver its full 750 watts continuously?
The listing says CX Series power supplies are guaranteed to deliver their full rated wattage of continuous power.
Comments
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