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Rectangular black ATX power supply unit with modular cable sockets and a 135mm fan grille

Corsair

Corsair RMx Series RM1000x 1000W 80 PLUS GOLD Full Modular Power Supply CP-9020094-NA

SKU CH-MYR0-TKRGS MPN CP-9020094-NA

Delivers 1000 W through a fully modular ATX12V/EPS12V design with 80 PLUS Gold efficiency and a 135 mm rifle-bearing fan

  • Max wattage1000 W
  • Power efficiency90%
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm Rifle Bearing Fan
  • Power factor correctionActive
  • Main power connector20+4Pin

Model ATX 80+ Gold (1000W)

  • 1000 W output powers demanding multi-GPU builds
  • 80 PLUS Gold 90 % efficiency lowers running costs
  • Full modular cabling keeps the case interior tidy
  • 135 mm rifle-bearing fan runs quietly under load
  • 180 mm depth fits most mid-tower and full-tower cases

Power for Demanding Builds

The Corsair RM1000x is a 1000 W ATX12V and EPS12V power supply with 80 PLUS Gold certification. It delivers up to 83.30 A on a single +12 V rail and 90 % typical efficiency. A 135 mm rifle bearing fan provides cooling while the fully modular cable set keeps the interior tidy. The unit measures 180 mm deep and fits standard ATX cases.

Suitability Guide

This unit suits systems that need abundant 12 V current for multiple graphics cards or high-end workstations. The eight 6+2 pin PCIe connectors and eleven SATA power connectors support SLI and CrossFire configurations. Builds with modest power requirements or tight case clearances should consider a lower-wattage or shorter model instead.

Deciding Specification

The single +12 V rail rated at 83.30 A is the specification that determines whether this supply matches the load. If the combined 12 V draw of all components stays within this limit the RM1000x will deliver stable power; if the demand exceeds it a higher-capacity unit is required.

How it compares

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

Price $168.99
Pricier than about 56% of the 10,869 comparable items (median $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 RM1000x
Model nameCP-9020094-NA
Product typeATX12 V / EPS12 V
Graphics
SLI supportReady
CrossFire supportReady
Ports & slots
PCIe power connectors8 × 6+2-Pin
SATA power connectors11
Output type+3.3 V @ 25A, +5 V @ 25A, +12 V @ 83.3A, -12 V @ 0.8A, +5VSB @ 3A
Connection types1 x Motherboard (20+4-Pin)
2 x CPU power ( 4+4-Pin, works as either 4 or 8-Pin)
8 x PCIe 6+2-Pin (GPU)
12 × 4-Pin peripheral
11 x SATA
1 x Floppy power adapter
Power
Max wattage1000 W
Power efficiency90%
Modular cablingFull Modular
Power factor correctionActive
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current13–6.5 A
Size & build
Product dimensions3.39 in × 5.91 in × 7.09 in
Product weight4.41 lb (2 kg)
Shipping weight4.20 kg
Package size394 × 226 × 152 mm
Compatibility
Haswell compatibilityYes
PSU length limit180 mm
In the box
Included itemsRMx Series High-Performance ATX Power Supply
AC power cord
DC Modular cable set
DC Modular cable storage bag
Cable ties
Corsair case badge
User Manual
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

1 more in the same range

Questions about this item

How loud does the 135mm Rifle Bearing fan get when the 1000W unit runs continuously under heavy load?

The 135mm Rifle Bearing fan is designed for quiet operation; it spins only when needed and ramps up gradually to keep noise low during extended high-load sessions.

Which cables must I already have to connect the 20+4Pin main connector and the eight 6+2-pin PCIe plugs?

All required cables ship in the box — the fully modular set includes the 20+4Pin ATX cable, eight 6+2-pin PCIe cables, eleven SATA power cables and EPS/CPU cables.

Will the single +12V rail delivering 83.30A work safely with an older motherboard that expects multi-rail OCP limits?

Yes, the single +12V rail design provides up to 83.30A with full protection circuitry, so it is compatible with both modern and legacy motherboards that follow ATX12V/EPS12V specs.

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