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Black rectangular ATX power supply unit with modular cable sockets and a single 140mm fan grille

Corsair

Corsair CP-9020194-NA RM650 650 W power supply

SKU CH-87K7-ZYDZE MPN CP-9020194-NA

A 650 W fully modular ATX supply with 80 PLUS Gold efficiency, a 140 mm rifle-bearing fan offering zero-RPM mode, 105 °C-rated capacitors and a compact 160 mm depth

  • TypeATX12V
  • Maximum Power650 W
  • Fans1 x 140mm Rifle Bearing Fan
  • Main Connector24Pin
  • +12V RailsSingle
  • PCI-Express Connector4 x 6+2-Pin

Options ATX 80+ Gold (650W)

  • 80 PLUS Gold certification cuts power draw and heat
  • 140 mm rifle bearing fan runs quietly even at full load
  • 105 °C-rated capacitors give long-term electrical reliability
  • Fully modular cables let you connect only what the build needs
  • Compact 160 mm length fits almost every modern case

What the RM650 delivers

This Corsair RM650 is a 650 W ATX12V unit built for system builders who want efficient, quiet power. It carries 80 PLUS Gold certification and uses a single +12 V rail rated at 54 A. A 140 mm rifle bearing fan runs a tailored curve and stops completely under light loads. Fully modular cables keep the interior tidy.

Who should choose this unit

The compact 160 mm length fits most modern enthusiast cases, while four 6+2-pin PCIe connectors and six SATA plugs support multi-GPU SLI setups and plenty of drives. Microsoft Modern Standby compatibility gives fast wake times. Builders needing more than 650 W or a different form factor should look elsewhere.

The spec that decides fit

Maximum power is 650 W on a single +12 V rail delivering 54 A, which determines whether the unit can handle your graphics card and CPU combination. The 160 mm casing length decides case compatibility. Input range covers 100 to 240 V at 47 to 63 Hz.

Highlights

  • 80 PLUS Gold certification cuts power draw and heat
  • 140 mm rifle bearing fan runs quietly even at full load
  • 105 °C-rated capacitors give long-term electrical reliability
  • Fully modular cables let you connect only what the build needs
  • Compact 160 mm length fits almost every modern case

Specifications

BrandCORSAIR
SeriesRM Series RM650
ModelCP-9020194-NA
TypeATX12V
Maximum Power650 W
Fans1 x 140mm Rifle Bearing Fan
Main Connector24Pin
+12V RailsSingle
PCI-Express Connector4 x 6+2-Pin
SATA Power Connector6
SLISLI Ready
Max PSU Length160 mm
ModularFull Modular
Energy-Efficient80 PLUS GOLD Certified
Over Voltage ProtectionYes
Input Voltage100 - 240 V
Input Frequency Range47 - 63 Hz
Input Current10 - 5 A
Output+3.3V@20A, +5V@20A, +12V@54A, [email protected] , +5VSB@3A
MTBF100,000 Hours
Connectors1 x ATX CABLE 24-PIN (24)
2 x EPS/ATX12V 8-PIN (4+4)
4 x PCIe 8-PIN (6+2)
6 x SATA
4 x PERIPHERAL (4-PIN)
Features80 PLUS Gold Certified: High efficiency operation for lower power consumption, less noise and cooler temperatures.
Tuned for Low Noise Operation: A 140mm rifle bearing fan with a specially calculated fan curve ensures that fan noise is kept to a minimum, even at full load.
105°C-Rated Capacitors: Industrial-grade capacitors deliver solid electrical performance and reliability.
Microsoft Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.
Zero RPM Fan Mode: At low and medium loads the cooling fan switches off entirely for near-silent operati
Dimensions3.39" x 5.91" x 6.30"
Weight3.75 lbs.
Package ContentRM Series Performance ATX Power Supply
AC Power cord
DC Modular Cable Set
Cable Ties
Shipping weight2.86 kg
Package size310 × 218 × 135 mm

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I install the Corsair RM650 and what step do builders often miss?

Mount the 160 mm unit in the case, plug the 24-pin ATX cable, the two 4+4-pin EPS cables, and only the PCIe or SATA cables your build needs; the step often missed is seating each modular connector fully until it clicks, otherwise the rail will not deliver power.

What maintenance or replacement will the RM650 need later?

The 140 mm rifle-bearing fan is the only moving part; after many years it can be replaced with a standard 140 mm fan, while the 105 °C-rated capacitors and 100,000-hour MTBF rating mean no scheduled capacitor service is required.

What limit appears first when the RM650 runs at sustained load?

The single +12 V rail tops out at 54 A, so total 12 V output cannot exceed 650 W; once that current ceiling is reached the over-voltage and over-current protections will shut the unit down.

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