Corsair
Corsair RM1000x (ATX 3.1)
1,000 W · 80 PLUS Gold · Full
8.1
$170Nov 9
Corsair RM750x (ATX 3.1)
A 750 W ATX 3.1 unit with Japanese capacitors and a ten-year warranty, though priced above cheaper rivals.
- 750 W
- Cybenetics Gold
- Full
- ATX 3.1
- ATX
PCPR score
7.9
Good
Best price we’ve seen
$135Nov 9
Checked recently. Confirm at the retailer.
R1
The short version
The RM750x is Corsair's current 750 W RMx model, certified ATX 3.1 with Cybenetics Gold efficiency, 105°C Japanese capacitors, a 140 mm fluid dynamic bearing fan and Zero RPM mode. Tom's Hardware measured excellent power quality and quiet running but flagged a high retail price and falling efficiency in hot environments. It suits mainstream gaming builds with room for its 160 mm body, and it is backed by a ten-year warranty.
Pros
- Ten-year warranty and 105°C-rated Japanese capacitors
- One native 12V-2x6 cable, a 12V-2x6 to dual 8-pin cable and two 8-pin PCIe cables
- Fully modular with Zero RPM mode and a manual fan override knob
- Tom's Hardware measured excellent power quality and quiet operation
Cons
- 160 mm length exceeds the 140 mm ATX norm
- Tom's Hardware judged it pricey against more affordable rivals with similar efficiency
- Efficiency dropped sharply in Tom's Hardware's hot-environment testing
Best for
- Mainstream gaming builds needing ATX 3.1
- Buyers who want a ten-year warranty
J3
Full specifications
Core
- Wattage
- 750 W
- Form factor
- ATX
- Efficiency
- Cybenetics Gold
- ATX standard
- ATX 3.1
Features
- Modularity
- Full
- Warranty
- 10 years
Physical
- Length
- 160 mm
- Color
- Black
Connectivity
- 12V-2x6 / 16-pin
- 1
- PCIe 8-pin
- 2
- EPS 8-pin
- 2
- SATA power
- 8
- Molex
- 3
Cooling
- Fan size
- 140 mm
- Zero-RPM mode
- Yes
Compatibility notes
- Dual 8-pin cable plugs into a 12V-2x6 socket, so it is counted separately from the two native PCIe 8-pin connectors
- 160 mm length: confirm PSU clearance in compact cases
P1
Where to buy
Official store
Seen Nov 9, 2026
$134.99
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AV1
Video reviews
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AV2
What reviewers and owners say
Tom's Hardware
MixedTom's Hardware found solid performance, strong modularity and ATX 3.1 features for mainstream gaming PCs, but called the unit expensive against rivals and saw efficiency sink in hot conditions.
4/5 · 2024-11-01
Read the source
Summaries are written in our words. Follow the links for each source’s own review.
R9
Common questions
How long is the Corsair RM750x (ATX 3.1)?
Corsair lists dimensions of 160 x 150 x 86 mm, so the unit is 160 mm long. That is 20 mm longer than a 140 mm ATX power supply, so check clearance in compact cases.
Does the RM750x include a 12V-2x6 cable?
Yes. Corsair includes one native 12V-2x6 cable, a 12V-2x6 to dual 8-pin cable and two separate 8-pin PCIe cables.
Is this the ATX 3.1 version of the RM750x?
Yes. This SKU, CP-9020285-NA, is the ATX 3.1 model; Corsair sold earlier RM750x revisions under other product codes, so check the code when buying.
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