PC parts / Power supplies
CORSAIRPower supply
RM750x (2024)
- Power
- 750W
- Efficiency
- Cybenetics Gold
- Modular cables
- Fully modular
- ATX version
- ATX 3.1
54 of 66 fields known.
At a glance
Hold-up time
Higher than 97% of other power supplies.
General
- Model numbers
- CP-9020285-NA, CP-9020285-EU, CP-9020285-UK1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026SKU CP-9020285-NA. The EU and UK units are CP-9020285-EU and CP-9020285-UK, listed on Corsair's German and UK pages with the same Tech Specs. The Japan unit is CP-9020285-JP and is not stored.6Maker product pagecorsair.com/de/de/p/psu/cp-9020285-eu/rmx-series-rm750x-fully-modular-power-supply-eu-cp-9020285-euRead 15 October 2026German page SKU CP-9020285-EU with the same Tech Specs.7Maker product pagecorsair.com/uk/en/p/psu/cp-9020285-uk/rmx-series-rm750x-fully-modular-power-supply-uk-cp-9020285-ukRead 15 October 2026UK page SKU CP-9020285-UK with the same Tech Specs.12Retailer pagescan.co.uk/products/750w-corsair-rmx-series-rm750x-fully-modular-cybenetics-gold-pcie-51-single-rail-625a-140mm-fan-atxRead 15 October 2026Scan lists CP-9020285-UK.
- GTIN / EAN
- 840006676898, 840006676850, 84000667691110Retailer pagefleetnetwork.ca/products/cp-9020285-naRead 15 October 2026FleetNetwork lists CP-9020285-NA with UPC 840006676898. The check digit is valid. This is the only source for the NA code.11Retailer pagekomputronik.pl/product/934341/zasilacz-pc-corsair-rm750x-cp-9020285-eu.htmlRead 15 October 2026Komputronik lists producer code CP-9020285-EU with EAN 840006676850. custompc.com.cy lists the same code and EAN.12Retailer pagescan.co.uk/products/750w-corsair-rmx-series-rm750x-fully-modular-cybenetics-gold-pcie-51-single-rail-625a-140mm-fan-atxRead 15 October 2026Scan lists manufacturer code CP-9020285-UK with GTIN 840006676911.
- Announced
- 10 September 20243Press releasecorsair.com/newsroom/press-release/corsair-updates-popular-rmx-series-low-noise-power-supplies-with-atx-3-1-compliance-and-native-atx-12v-2x6-connectorRead 15 October 2026Press release dated September 10, 2024.
- Predecessor
- Not available
- Successor
- Not available
- Launch price (US)
- $119.994Maker product pageweb.archive.org/web/20240912173053/https://www.corsair.com/us/en/p/psu/CP-9020285-NA/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Archived copy of the Corsair US page from 2024-09-12, two days after launch. It shows a price of 119.99 USD with no discount, excluding sales tax. Hardware Busters gives an MSRP of 120 USD excluding VAT. The page today shows 134.99 USD, which is a later price.9Reviewhwbusters.com/psus/corsair-rm750x-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: MSRP (excluding VAT) 120 USD. Review published September 16, 2024.
- Markets
- Not available
- Colours
- Not available
- PCIe CEM version
- PCIe 5.11Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Feature list: ATX 3.1 compliant, supporting PCIe 5.1.
- Modular cables
- Fully modular1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Tech Specs: Modular Fully.
- Built by (OEM)
- Channel Well Technology (CWT)8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026DUT Information: OEM/ODM Channel Well Technology. Parts description: Manufacturer (OEM) CWT.9Reviewhwbusters.com/psus/corsair-rm750x-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Manufacturer (OEM) Channel Well Technology (CWT).
Power
- Rated continuous power
- 750W1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Tech Specs: Continuous Power W 750 Watts.
- Full power rated up to
- 50°C1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Overview: 50 C continuous operating temperature. The press release rates the power output at a 50 C ambient temperature.3Press releasecorsair.com/newsroom/press-release/corsair-updates-popular-rmx-series-low-noise-power-supplies-with-atx-3-1-compliance-and-native-atx-12v-2x6-connectorRead 15 October 2026Rated power output at a 50 C ambient temperature.
- 12V rail design
- Single rail9Reviewhwbusters.com/psus/corsair-rm750x-atx-v3-1-psu-reviewRead 15 October 2026Technical specifications: Number of 12V rails 1, 12V combined 750W.
- +12V max current
- 62.5A1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Power table: +12V 62.5A, 750W, model RPS0199, part no. 75-005878.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026RM750x power table: +12V 62.5A, 750W, model RPS0199.
- +12V max power
- 750W1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Power table: +12V 62.5A, 750W.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026RM750x power table: +12V 62.5A, 750W.
- +3.3V and +5V combined power
- 150W1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Power table: +3.3V 20A and +5V 20A with one 150W cell.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026RM750x power table: +3.3V 20A and +5V 20A, 150W.
- +5V standby current
- 3A1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Power table: +5VSB 3A, 15W.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026RM750x power table: +5Vsb 3A, 15W.
- AC input voltage
- Lowest100Highest240V1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Power table: AC input 100-240V, input current 10A-5A, 47-63Hz.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026Power table: AC input rating 100V-240V, input current 10A-5A, 47Hz-63Hz.
- Alternative low power mode (ALPM)
- Yes1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Tech Specs: Modern Standby Yes. The Cybenetics report ticks ALPM compatible.8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Temperature and Compliance Info: ALPM (Alternative Low Power Mode) compatible, checked.
Certifications
- 80 PLUS rating
- Not available
- Cybenetics efficiency at 115V
- Cybenetics Gold8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Report 24PS2406A, certification ID 252406, issued Apr 5, 2024. The ETA badge shows Gold at 115V, as does the Cybenetics performance database. The model name is RM750x (ATX v3.1). Corsair also says Cybenetics Gold without a voltage.
- Cybenetics efficiency at 230V
- Cybenetics Gold8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026The ETA badge shows Gold at 230V, as does the Cybenetics performance database.
- Cybenetics noise at 115V
- A+1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Tech Specs: Cybenetics Noise A+, with no input voltage. The Cybenetics report shows A+ at both voltages.8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026The LAMBDA level is A+ at 115V in the Cybenetics performance database. Corsair says A+ without a voltage.
- Cybenetics noise at 230V
- A+1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Tech Specs: Cybenetics Noise A+, with no input voltage. The Cybenetics report shows A+ at both voltages.8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026The LAMBDA level is A+ at 230V in the Cybenetics performance database.
Measured
- Average efficiency at 115V (measured)
- 88.701%8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Average over more than 1450 load combinations at 115V. Tested Apr 4, 2024 on sample serial A7QQA404M007FC, received Mar 14, 2024. Ambient 28-32 C. DUT note: CP-9020285 (Semi-Passive Off).
- Average efficiency at 230V (measured)
- 90.857%8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Average over more than 1450 load combinations at 230V.
- Light-load efficiency at 115V (measured)
- 73.996%8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Efficiency at 2% load (more than 500 W unit) at 115V.
- Average power factor at 115V (measured)
- 0.9898Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Average over more than 1450 load combinations at 115V.
- Noise at full load at 115V (measured)
- 45.2dB(A)8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Typical load tests at 115V, 100% load row: 45.2 dB(A) at 1730 rpm fan speed, ambient about 30 C. At 230V it is 45.6 dB(A) at 1752 rpm.
- Standby power with no load at 115V (measured)
- 0.0174W8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Standby power consumption at 115V with no load on +5VSB.
- Hold-up time (measured)
- 26.6ms8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Hold-Up Time and PWR_OK Signal: hold-up time 26.60 ms, AC loss to PWR_OK 22.90 ms, PWR_OK inactive to DC loss 3.70 ms, at maximum continuous load. The report names no input voltage.
- 12V ripple at full load (measured)
- 23.08mV8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Non-accredited measurement. 12V ripple at full load at 115V. At 230V it is 23.75 mV.
Cables and connectors
- Cables
Connector Connectors Cables Length to first plug (mm) Wire gauge Rated power (W) ATX 24-pin (20+4) 1 1 610 16-20AWG Not available CPU 8-pin (EPS, 4+4) 2 2 750 18AWG Not available PCIe 8-pin (6+2) 4 3 650 16-18AWG Not available 12V-2x6 1 1 650 Not available 600 SATA power 8 2 505 18AWG Not available 4-pin Molex 3 1 550 18AWG Not available Source1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Cable listing: 1 ATX 24-pin 610 mm, 2 EPS 8-pin (4+4) 750 mm, 2 PCIe 8-pin (6+2) cables with one plug each, 1 PCIe 12V-2x6 to Dual 8-Pin (6+2) cable with two plugs, 1 PCIe 12V-2x6 (12+4) cable, all three PCIe cable types 650 mm, 2 SATA cables with 4 plugs each (505 mm to the first plug, 115 mm spacing, 850 mm total), 1 PATA cable with 3 plugs (550 mm to the first plug, 100 mm spacing, 750 mm total). All lengths have a tolerance of 10 mm, the PATA cable 25 mm. PATA plugs are the 4-pin Molex plugs. The 12V-2x6 to dual 8-pin cable counts as PCIe 8-pin, so there are 4 PCIe 8-pin plugs on 3 cables. It starts at the 12V-2x6 socket of the PSU, so it shares that socket with the 12V-2x6 cable. Hardware Busters and Cybenetics list 3 PCIe 6+2 cables with 3 plugs and no dual cable, which does not match the maker's list. The page does not rate the 12V-2x6 cable. The Cybenetics report and Hardware Busters list it at 600 W. Gauges come from the Cybenetics report.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026Included cables: 1x ATX 24-pin 610 mm, 2x EPS/ATX12V 8-pin (4+4) 750 mm, 1x PCIe 12V-2x6 (12+4) 650 mm, 2x PCIe 8-pin (6+2) 650 mm (RM750x), 1x 12V-2x6 to Dual 8-pin (6+2) 650 mm (RM750x only), 2x SATA with 4 plugs 850 mm, 1x PATA with 3 plugs 750 mm.8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Cables and Connectors table: ATX 16-20AWG, EPS 18AWG, 6+2 pin PCIe 16-18AWG, 12+2 pin PCIe (600W) 16-24AWG, SATA 18AWG and Molex 18AWG, no in-cable capacitors. The report lists 3 PCIe 6+2 cables with 3 connectors, which does not match the maker's dual 8-pin cable. The 16-24AWG range for the 12V-2x6 cable includes the thin sideband wires, so no gauge is stored for it. Cybenetics lists the SATA cable at 500 mm, which is not stored.9Reviewhwbusters.com/psus/corsair-rm750x-atx-v3-1-psu-reviewRead 15 October 2026Cables page: the same cable table as the Cybenetics report. The text says the modular board has ten sockets, one of them 12V-2x6, and no pair of 8-pin sockets for the high-power PCIe connector.- CPU (EPS) connectors
- 2
- PCIe 8-pin connectors
- 4
- 16-pin GPU connectors
- 1
- SATA power connectors
- 8
- 4-pin Molex connectors
- 3
- Cable style
- Embossed or debossed flat1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Cable listing: Cable Type Embossed for every cable. The Tech Specs row says Type 4.3Press releasecorsair.com/newsroom/press-release/corsair-updates-popular-rmx-series-low-noise-power-supplies-with-atx-3-1-compliance-and-native-atx-12v-2x6-connectorRead 15 October 2026Fully modular, embossed, ultra-flexible cables.
Fan
- Fan size
- 140mm1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Overview: 140mm low-noise fan.3Press releasecorsair.com/newsroom/press-release/corsair-updates-popular-rmx-series-low-noise-power-supplies-with-atx-3-1-compliance-and-native-atx-12v-2x6-connectorRead 15 October 2026140mm fan.8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Cooling: 140mm Fluid Dynamic Bearing Fan (NR140HP).
- Fan bearing
- Fluid dynamic (FDB)1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Overview: a fluid dynamic bearing fan with magnetic dome structure. The bearing is stored as fluid dynamic, since the maker names the dome as a structure of the fan and not as the bearing.3Press releasecorsair.com/newsroom/press-release/corsair-updates-popular-rmx-series-low-noise-power-supplies-with-atx-3-1-compliance-and-native-atx-12v-2x6-connectorRead 15 October 2026140mm Fluid-Dynamic Bearing fan.8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Cooling: Fluid Dynamic Bearing fan.
- Fan mode
- Semi-passive1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Tech Specs: Zero RPM Mode Yes. The fan is off at low to medium loads.8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Semi-Passive Operation checked and selectable.
- Fan mode switch
- Yes1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Overview: a manual fan override knob overrides the Zero RPM mode and the low-noise profile.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026Fan speed knob: use this knob to override the Zero RPM fan mode and adjust the minimum starting fan speed.3Press releasecorsair.com/newsroom/press-release/corsair-updates-popular-rmx-series-low-noise-power-supplies-with-atx-3-1-compliance-and-native-atx-12v-2x6-connectorRead 15 October 2026Users can override the fanless low-load operation with the included knob on the rear of the unit.8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Semi-Passive Operation is listed as selectable.
Protection and parts
- Protections
- Over-current (OCP), Over-voltage (OVP), Under-voltage (UVP), Over-power (OPP), Over-temperature (OTP), Short-circuit (SCP), No-load (NLO), Surge and inrush (SIP)2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026Safety and protection section: OVP and UVP on 12V, 5V and 3.3V, OCP on 3.3V, 5V and 12V, OTP, SCP and OPP. The six maker protections are stored together with NLO and SIP from the Cybenetics tests shown by Hardware Busters.9Reviewhwbusters.com/psus/corsair-rm750x-atx-v3-1-psu-reviewRead 15 October 2026Protection Features page, which presents the Cybenetics protection tests: OCP, OPP, OTP, SCP, NLO, fan failure protection and SIP (surge MOV, inrush NTC thermistor and bypass relay) all shown. The page has no OVP or UVP row.
- All-Japanese capacitors
- Yes1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Overview: 100% industrial-grade, 105 C rated Japanese electrolytic capacitors.3Press releasecorsair.com/newsroom/press-release/corsair-updates-popular-rmx-series-low-noise-power-supplies-with-atx-3-1-compliance-and-native-atx-12v-2x6-connectorRead 15 October 2026100% Japanese electrolytic capacitors.
Monitoring and lighting
We could not find any of these 4 fields. Show them
- Software monitoring
- Not available
- Software
- Not available
- Built-in power display
- Not available
- RGB lighting
- Not available
Dimensions and weight
Front and side, drawn to scale.
- Dimensions
- Width150Height86Depth160mm(5.9 × 3.4 × 6.3 in)1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Tech Specs: 160x150x86 with no unit. The manual gives length 160 mm, width 150 mm and height 86 mm. Depth is 160 mm.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026RM750x specifications: length 160 mm, width 150 mm, height 86 mm.
In the box
We could not find any of these 1 fields. Show them
- In the box
- Not available
Links
- Product page
- www.corsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-na1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026
- Spec sheet
- Not available
- Manual
- www.corsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-series2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026
- EPREL registration number
- Not available
Warranty
Compare with
Pick a power supply to see both side by side. Differences are marked yellow.
Variants
Each variant lists only what differs from the specs above.
| Model number | GTIN | Launch price (US) | Launch price (EU) |
|---|---|---|---|
| CP-9020285-NA | 840006676898 | $119.99 | Not available |
| CP-9020285-EU | 840006676850 | Not available | €154.9 |
| CP-9020285-UK | 840006676911 | Not available | Not available |
Sources
We read 12 sources for this power supply. The numbers match the markers in the sheet.
- Measurementcybenetics.com/evaluations/psus/2406
- Retailer pagefleetnetwork.ca/products/cp-9020285-na
See a wrong value? Tell us and name the field.