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Black fully modular ATX power supply unit with 140 mm fan and native 12V-2x6 connector

Corsair

Corsair CP-9020271-NA RM1000x power supply

SKU CH-1YPE-W9DE1 MPN CP-9020271-NA

Fully modular 1000 W ATX 3.1 power supply with Cybenetics Gold efficiency, native 12V-2x6 connector and 140 mm fan

  • Max wattage1000 W
  • Modular cablingFull Modular
  • Fan configuration1 × 140 mm
  • Main power connector24Pin
  • PSU length limit160 mm
  • Efficiency certificationCybenetics Gold

Model ATX 3.1 80+ Gold (1000W)

  • 1000 W output with Cybenetics Gold certification
  • Fully modular design reduces cable clutter inside the case
  • ATX 3.1 compliant with native 12V-2x6 connector for PCIe 5.1 graphics cards
  • 140 mm fan with adjustable speed knob for quieter operation
  • 105 °C Japanese capacitors ensure long-term reliability

Corsair RM1000x ATX 3.1 power supply

The Corsair RM1000x is a fully modular ATX 3.1 power supply rated for 1000 W maximum output. It carries Cybenetics Gold certification and uses 105 °C Japanese electrolytic capacitors throughout. A native 12V-2x6 connector and PCIe 5.1 support make it suitable for modern high-end graphics cards. Builders who want clean cable routing and reliable efficiency will find it well suited.

Check clearance and connectors before ordering

Verify that your case can accept a unit up to 160 mm in length. Ensure the motherboard has a 24-pin ATX socket and the CPU requires one or two 8-pin EPS connectors. Count the SATA and PCIe devices you plan to power so the supplied cables match your needs. The 12V-2x6 plug is required for graphics cards that use the PCIe 5.1 power standard.

Thermals noise and power draw

A single 140 mm fan handles cooling and features a speed adjustment knob for manual control. Cybenetics Gold rating indicates high efficiency across typical loads, reducing waste heat. The fan can stop at low load for silent operation and ramps up only when temperature demands it. Input voltage ranges from 100 to 240 V at 47 to 63 Hz for worldwide compatibility.

How it compares

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

Price $171.99
Pricier than about 57% 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
Model nameRM1000x
Part numberCP-9020271-NA
Product colorBlack
Product typeATX 3.1 Compatible
Ports & slots
Connection types1 × 12VHPWR (12+4) PCIe / 1 × 24 pin ATX / 12 x SATA / 2 × 8 pin (4+4) EPS (CPU) / 4 × 8 pin (6+2) PCIe / 6 x PATA
Power
Max wattage1000 W
Modular cablingFull Modular
Main power connector24Pin
Efficiency certificationCybenetics Gold
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current+3.3 V@20A, +5 V@20A, +5Vsb@3A
Size & build
Shipping weight3.83 kg
Package size305 × 216 × 130 mm
Compatibility
PSU length limit160 mm
In the box
Included itemsRM1000x Power Supply | DC Cable Kit | Power Cord | Mounting Screws | Cable Ties
More details
Fan configuration1 × 140 mm

Other versions of this model

5 more in the same range

Questions about this item

What cables and accessories come in the box with the RM1000x, and which ones must be purchased separately?

The box contains the RM1000x unit, a full DC cable kit, a power cord, mounting screws and cable ties. Every cable listed in the specifications is included, so no extra cables are required for a standard build.

Which version of the 12VHPWR connector does this model provide, and how does it relate to the PCIe 5.1 support?

It includes a native 12V-2x6 (12+4 pin) cable rated for PCIe 5.1 graphics cards, removing the need for an adapter on current high-end GPUs.

What does the 1000 W rating mean for a system built around an ATX 3.1 motherboard and a modern GPU?

The 1000 W maximum power is delivered on the 12 V rail, matching ATX 3.1 transient-response requirements and giving headroom for a high-end CPU plus a PCIe 5.1 graphics card.

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