PC parts / Power supplies
CORSAIRPower supply
CX750M ATX 3.1
Released July 2025.3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Cybenetics received the sample of CX750M (ATX v3.1) on Jun 30, 2025 and issued the report on Jul 28, 2025, so the unit existed by July 2025. Corsair prints no launch date and no press release was found. The month is approximate. Last checked 16 October 2026.
- Power
- 750W
- Efficiency
- Cybenetics Silver
- Modular cables
- Semi-modular
- ATX version
- ATX 3.1
50 of 66 fields known.
General
- Model numbers
- CP-9020311-NA1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026SKU CP-9020311-NA. The power table prints MODEL RPS0229 and PART NO. 75-006838.
- Announced
- Not available
- Predecessor
- Not available
- Successor
- Not available
- Launch price (US)
- Not available
- Launch price (EU)
- Not available
- Markets
- Not available
- Colours
- Not available
- ATX version
- ATX 3.11Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026Tech Specs: ATX12V Version v3.1, EPS12V Version 2.92. The headline says ATX 3.1 and PCIe 5.1.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026Intro: CX-M Series power supplies are ATX 3.1 compliant and PCIe 5.1 ready.
- PCIe CEM version
- PCIe 5.11Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026Headline and feature text: ATX 3.1 and PCIe 5.1, native 12V-2x6 GPU power cable.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026Intro: PCIe 5.1 ready with a 12V-2x6 cable.
- Modular cables
- Semi-modular1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026Tech Specs: Modular Semi. The power cable listing marks the 24-pin, CPU and one 8-pin PCIe cable as fixed.3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026DUT Information: Cable Design Semi Modular.
Power
- Rated continuous power
- 750W1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026Tech Specs: Continuous Power W 750 Watts. The power table prints TOTAL POWER 750W.
- Full power rated up to
- 40°C1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026Tech Specs: Continuous Output Rated Temp C 40°C.
- +12V max current
- 62.5A1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026CX750M power table: +12V 62.5A, 750W.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026CX750M power table, model RPS0229, part no. 75-006838: +12V 62.5A 750W.
- +12V max power
- 750W1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026CX750M power table: +12V 62.5A, 750W.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026CX750M power table: +12V 750W.
- +3.3V and +5V combined power
- 130W1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026CX750M power table: +3.3V 20A and +5V 20A share one 130W maximum output cell.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026CX750M power table: +3.3V 20A 130W and +5V 20A under one 130W cell.
- +5V standby current
- 3A1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026CX750M power table: +5VSB 3A, 15W.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026CX750M power table: +5Vsb 3A 15W.
- AC input voltage
- Lowest100Highest240V1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026CX750M power table: AC input 100V-240V, input current 10A-5A, 47Hz-63Hz.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026CX750M power table: 100V - 240V a.c., 10A - 5A, 47Hz - 63Hz.
Certifications
- 80 PLUS rating
- Not available
- Cybenetics efficiency at 115V
- Cybenetics Silver3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Report 25PS2903A, certification ID 252903, issued Jul 28, 2025, model CX750M (ATX v3.1). ETA Silver at 115V (Cybenetics database feed, id 2903). Corsair's page says Cybenetics Bronze. The report is stored.
- Cybenetics efficiency at 230V
- Cybenetics Silver3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026ETA Silver at 230V (Cybenetics database feed, id 2903).
- Cybenetics noise at 115V
- Standard++3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026LAMBDA Standard++ at 115V (Cybenetics database feed, id 2903).
- Cybenetics noise at 230V
- Standard++3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026LAMBDA Standard++ at 230V (Cybenetics database feed, id 2903).
Measured
- Average efficiency at 115V (measured)
- 86.207%3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Average over more than 1450 load combinations at 115V. Sample serial 4583, received Jun 30, 2025, tested Jul 22, 2025. Ambient 28-32 C.
- Average efficiency at 230V (measured)
- 88.351%3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Average over more than 1450 load combinations at 230V.
- Light-load efficiency at 115V (measured)
- 70.945%3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Efficiency at 2% load (more than 500 W unit) at 115V.
- Average power factor at 115V (measured)
- 0.9943Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Average over more than 1450 load combinations at 115V.
- Average noise at 115V (measured)
- 31.78dB(A)3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Average over more than 1450 load combinations at 115V. Ambient 28-32 C. Bruel and Kjaer 2270 G4 sound analyzer. The 230V average is 31.87 dBA.
- Noise at full load at 115V (measured)
- 45.3dB(A)3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Typical load tests at 115V, 100% load row: 45.3 dB(A) at 1955 rpm fan speed, intake 45.96 C. At 230V it is 45.1 dB(A) at 1928 rpm.
- Standby power with no load at 115V (measured)
- 0.0547W3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Standby power consumption at 115V with no load on +5VSB: 0.0547 W.
- Hold-up time (measured)
- 16.8ms3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Hold-Up Time and PWR_OK Signal: hold-up time 16.8 ms, AC loss to PWR_OK 15.0 ms, PWR_OK inactive to DC loss 1.8 ms, at maximum continuous load. The report names no input voltage.
- 12V ripple at full load (measured)
- 31.07mV3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Non-accredited measurement. 12V ripple at full load at 115V. At 230V it is 33.42 mV.
Cables and connectors
- Cables
Connector Connectors Cables Length to first plug (mm) Wire gauge Rated power (W) ATX 24-pin (20+4) 1 1 600 18-22AWG Not available CPU 8-pin (EPS, 4+4) 2 1 500 16-18AWG Not available PCIe 8-pin (6+2) 4 2 500 16-18AWG Not available 12V-2x6 1 1 600 16AWG 600 SATA power 6 2 400 18AWG Not available SATA power 2 1 350 18AWG Not available 4-pin Molex 1 1 350 18AWG Not available Source1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026CX750M cable listing: ATX 24-pin fixed (600mm), dual 4+4-pin / 8-pin EPS fixed (spacing 500mm, 100mm), dual 6+2-pin PCIe fixed (500mm, 100mm), dual 6+2-pin PCIe modular (500mm, 100mm), 600W 12V-2x6 modular (600mm), 3 SATA modular and 3 SATA fixed (400mm, 100mm, 100mm), 2 SATA / 1 PATA modular (350mm, 150mm, 150mm). The first spacing value is stored as the length to the first plug. Tech Specs: SATA connector 8, PATA connector 1. Wire gauges come from the Cybenetics report. Cybenetics lists 510 mm, 595 mm and 410 mm for some of the same cables, which are not stored. The 12V-2x6 gauge is a 16-24AWG range that includes sideband wires, so the 16AWG power wire gauge is stored.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026Included Cables: 1x fixed ATX 24-pin, 1x fixed dual ATX12V/EPS12V (8-pin / 4+4-pin), 1x fixed dual 8-pin PCIe, 1x modular dual 8-pin PCIe, 1x modular 12V-2x6 (450W / 600W, CX750M 600W), 1x modular SATA (3 SATA), 1x fixed SATA (3 SATA), 1x modular 2 SATA / 1 PATA. The 600W rating is for the CX750M.3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Cables and Connectors table: captive ATX 24 pin 18-22AWG, 4+4 pin ATX12V 16-18AWG, 6+2 pin PCIe 16-18AWG, SATA 18AWG. Modular 6+2 pin PCIe 16-18AWG, 12+2 pin PCIe (600W) 16-24AWG, SATA 18AWG, SATA / 4-pin Molex 18AWG. The gauges are stored. The lengths are Corsair's.- CPU (EPS) connectors
- 2
- PCIe 8-pin connectors
- 4
- 16-pin GPU connectors
- 1
- SATA power connectors
- 8
- 4-pin Molex connectors
- 1
Fan
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-cxm-2025Read 15 October 2026Safety and Protection section describes over-voltage (OVP), over-current (OCP), over-temperature (OTP), short-circuit (SCP) and over-power (OPP) protection. UVP, NLO and SIP come from the Cybenetics protection tests.3Measurementcybenetics.com/evaluations/psus/2903Read 15 October 2026Protection Features: UVP passed at 90 V full load and at 80 V (no damage), NLO checked, surge protection by MOV and inrush protection by NTC. The manufacturer block lists OPP, OCP (+12V), OTP, SCP, surge and inrush protection and no fan failure protection.
- All-Japanese capacitors
- Not available
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
- Width150Height86Depth140mm(5.9 × 3.4 × 5.5 in)1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026Tech Specs: Dimensions 150mm x 86mm x 140mm. The manual gives height 86 mm, width 150 mm and length 140 mm. The feature text says a compact 140mm (length) design.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026CX750M: height 86mm, width 150mm, length 140mm.
- Weight
- Not available
In the box
- In the box
- CX-M Series ATX Power Supply, Modular DC Cable Set, AC Power Cable, Warranty & Safety Documentation1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026Package Contents: CX-M Series ATX Power Supply, Modular DC Cable Set, AC Power Cable, Warranty & Safety Documentation. The cables are stored in the cables field. The AC cable differs per region.
Links
- Product page
- www.corsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-na1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026
- Spec sheet
- Not available
- Manual
- www.corsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-20252Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026Corsair quick start guide for the CX-M Series (3rd GEN). It covers the CX650M and the CX750M.
- EPREL registration number
- Not available
Warranty
- Manufacturer warranty (source market)
- 7years1Maker product pagecorsair.com/us/en/p/psu/cp-9020311-na/cx-m-series-cx750m-atx-3-1-cybenetics-bronze-semi-modular-psu-cp-9020311-naRead 15 October 2026Tech Specs: Warranty 7 Year. The page is the Corsair US store.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-cxm-2025Read 15 October 2026Warranty: CX-M Series (3rd GEN) power supplies have a 7-year warranty.
Compare with
Pick a power supply to see both side by side. Differences are marked yellow.
Sources
We read 4 sources for this power supply. The numbers match the markers in the sheet.
- Measurementcybenetics.com/evaluations/psus/2903
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