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Black rectangular ATX power supply with modular cable sockets and a 135mm fan grille

Corsair

Corsair RM1000x CP-9020201-NA 1000 W power supply

SKU CH-Z77Q-DR77P MPN CP-9020201-NA

A fully modular 1000 W ATX power supply with 80 PLUS Gold efficiency, a 135 mm rifle-bearing fan with zero-RPM mode, six PCIe 6+2-pin and fourteen SATA connectors.

  • Max wattage1000 W
  • Power efficiency90%
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm Rifle Bearing Fan
  • Power factor correctionActive
  • Main power connector24Pin

Model ATX 80+ Gold (1000W)

  • Fully modular design lets you connect only the cables your system needs
  • 135 mm rifle-bearing fan with Zero RPM mode keeps noise low at light loads
  • 80 PLUS Gold certified 90% efficiency reduces waste heat and running costs
  • Single +12V rail delivers 83.3 A for stable power to modern GPUs
  • 105 °C Japanese capacitors and LLC resonant topology ensure clean, reliable output

Fully modular 1000 W ATX power supply

The Corsair RM1000x CP-9020201-NA delivers 1000 W through a single +12 V rail and meets 80 PLUS Gold efficiency at 90 %. It uses 105 °C rated Japanese capacitors and a resonant LLC topology with DC-to-DC conversion for stable output. The unit supports Modern Standby sleep mode and includes over-voltage protection. Input voltage ranges from 100 to 240 V at 47 to 63 Hz.

Full modularity frees cable routing and case space

Only the required cables connect to the PSU, reducing clutter inside the chassis. The package provides a 610 mm 24-pin motherboard cable, three 650 mm 4+4-pin EPS cables, three PCIe cables each with two 6+2-pin connectors at 600 mm plus 150 mm, two SATA cables with four connectors at 505 mm plus 115 mm spacing, two SATA cables with three connectors at 520 mm plus 115 mm spacing, and eight peripheral cables. Maximum PSU length is 180 mm.

135 mm rifle bearing fan with Zero RPM mode

The fan stops completely at low to medium loads for near-silent operation. Under higher load the magnetic levitation bearing and custom rotors maintain airflow while keeping noise low. Active PFC and the LLC topology reduce coil whine. Typical output includes +12 V at 83.3 A, +3.3 V and +5 V at 20 A each, -12 V at .3 A, and +5 VSB at 3 A. MTBF is rated at 100000 hours.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $148.99
Typical for this category: the median of 10,869 items is $142.99.
Max wattage 1000 W
Higher than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameCORSAIR
Product lineRMx Series (2021) RM1000x
Model nameCP-9020201-NA
Product typeATX12 V / EPS12 V
Graphics
SLI supportReady
CrossFire supportReady
Ports & slots
PCIe power connectors6 × 6+2-Pin
SATA power connectors14
Output type+3.3 V @ 20A, +5 V @ 20A, +12 V @ 83.3A, -12 V @ 0.3A, +5VSB @ 3A
Connection types1 × 24 pin ATX
3 × 8 pin (4+4) EPS (CPU)
6 × 8 pin (6+2) PCIe
14 x SATA
8 × 4 pin Peripheral
Power
Max wattage1000 W
Power efficiency90%
Modular cablingFull Modular
Power factor correctionActive
Main power connector24Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current12–6 A
Size & build
Product dimensions3.39 in × 5.91 in × 7.09 in
Product weight4.41 lb (2 kg)
Shipping weight3.70 kg
Package size302 × 214 × 129 mm
Compatibility
Haswell compatibilityYes
PSU length limit180 mm
In the box
Included itemsRM1000X
Safety leaflet
AC cable
DC cable set
Mounting screws
Cable ties
Environment & compliance
Regulatory approvalsFCC, ICES, CE, UL / CUL, CSA, C-Tick / RCM, TUV, CB, CU, KC Mark, RoHS, WEEE, RoHS (China), REACH.
More details
Fan configuration1 × 135 mm Rifle Bearing Fan
Mean time between failures100,000 h

Other versions of this model

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Questions about this item

How much power can the single +12 V rail deliver continuously?

The single +12 V rail is rated for 83.3 A, giving the full 1000 W capacity to graphics cards and CPU without multi-rail limits.

Does the 135 mm fan stay off at low load and how loud is it at full load?

Zero RPM mode stops the fan completely until internal temperatures rise; under sustained full load the rifle-bearing fan spins up but remains within the 80 PLUS Gold efficiency envelope.

Which cables are included in the box for a typical build?

The fully modular set includes one 24-pin ATX cable, three 4+4-pin EPS cables, three dual 6+2-pin PCIe cables, two four-SATA cables, two three-SATA cables and eight peripheral connectors.

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