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Rectangular black metal box with modular cable sockets and a 135mm fan grille

Corsair

Corsair RM650X CP-9020091-NA 650W power supply

SKU CH-ES24-J6K2A MPN CP-9020091-NA

Delivers 650W through a fully modular ATX design with 80 PLUS Gold efficiency and a thermally controlled 135mm fan

  • TypeATX12V / EPS12V
  • Maximum Power650 W
  • Fans1 x 135mm Thermally Controlled Fan
  • PFCActive
  • Main Connector20+4Pin
  • +12V RailsSingle
  • Clean cable management with full modular design
  • Efficient 90% power conversion at typical loads
  • Quiet operation via 135mm thermally controlled fan
  • Broad GPU support with four PCIe 6+2-Pin connectors
  • Reliable protection including over voltage safeguards

RM650X 650W fully modular PSU

The Corsair RM650X is a 650W ATX12V and EPS12V power supply with full modular cabling and 80 PLUS Gold certification. It delivers up to 90% efficiency at typical loads and supports SLI and CrossFire multi-GPU configurations. A single +12V rail rated at 54A provides stable power for modern components. The unit accepts 100-240V input across 47-63Hz for worldwide use.

Straightforward install with cable management

Full modularity lets you attach only the cables your build needs, reducing clutter and improving airflow. The package includes a 20+4-pin motherboard cable, a 4+4-pin CPU cable, four PCIe 6+2-pin connectors, eight SATA connectors, seven peripheral cables and a floppy adapter. A 135mm thermally controlled fan spins only when required, so Zero RPM mode keeps the system silent at low load. The main mistake is leaving unused modular ports unplugged or forcing connectors the wrong way round.

Mid-range builds needing clean cabling

This unit suits gaming PCs and workstations that demand 650W with Gold efficiency and quiet operation. Builds planning multiple high-end GPUs or extreme overclocking should look at higher-wattage models. Systems requiring specialised server connectors or non-standard form factors will need a different platform.

Pontos fortes

  • Clean cable management with full modular design
  • Efficient 90% power conversion at typical loads
  • Quiet operation via 135mm thermally controlled fan
  • Broad GPU support with four PCIe 6+2-Pin connectors
  • Reliable protection including over voltage safeguards

Especificações

BrandCORSAIR
SeriesRMx Series
ModelRM650X (CP-9020091-NA)
TypeATX12V / EPS12V
Maximum Power650 W
Fans1 x 135mm Thermally Controlled Fan
PFCActive
Main Connector20+4Pin
+12V RailsSingle
PCI-Express Connector4 x 6+2-Pin
SATA Power Connector8
SLISLI Ready
Haswell SupportYes
CrossFireCrossFire Ready
ModularFull Modular
Efficiency90%
Energy-Efficient80 PLUS GOLD Certified
Over Voltage ProtectionYes
Input Voltage100 - 240 V
Input Frequency Range47 - 63 Hz
Input Current10 - 5A
Output+3.3V @ 25A, +5V @ 25A, +12V @ 54A, -12V @ 0.8A, +5VSB @ 3A
MTBF100,000 hours
ApprovalsFCC, ICES, CE, UL / CUL, CSA, C-Tick / RCM, TUV, CB, CU, KC Mark, RoHS, WEEE, RoHS (China), REACH
Connectors1 x Motherboard cable (20+4-Pin)
1 x CPU power Cable (4+4-Pin, works as either 4 or 8-Pin)
4 x PCIe 6+2-Pin (GPU)
7 x 4-Pin peripheral cable
8 x SATA cable
1 x Floppy power adapter cable
Features80 PLUS Gold efficiency, delivering 90% energy efficiency at real world load conditions.
ZeroRPM mode for fanless operation at low loads and outstanding noise reduction.
135mm thermally controlled fan spins up as needed.
Fully modular cables for easy installation, less clutter, and helps maximize airflow through your computer's chassis.
Engineered to meet maximum power output at a server-grade 50 degrees Celsius temperature rating.
Over-voltage protection, under-voltage protection, short circuit protection, over power protection, and over temperature protection provide maximum safety
Dimensions3.39" x 5.91" x 6.30"
Weight3.69 lbs.
Peso de envio3.18 kg
Dimensões da embalagem295 × 216 × 140 mm

Perguntas sobre este artigo

How can I confirm the 135 mm fan is running only when needed?

The 135 mm thermally controlled fan stays off at low loads; listen for silence during idle then verify spin-up under heavy GPU or CPU load.

Which cables come attached and which must I add for a full build?

Box includes 20+4 pin motherboard, 4+4 pin CPU, four PCIe 6+2 pin, seven 4-pin peripheral, eight SATA, one floppy adapter; no extra cables required for standard ATX builds.

Is the single +12 V rail rated at 54 A enough for my dual-GPU SLI setup?

Yes, the single +12 V rail delivers 54 A and the unit provides four PCIe 6+2 pin connectors, matching the SLI-ready spec for two graphics cards.

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