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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

  • Max wattage650 W
  • Modular cablingFull Modular
  • Fan configuration1 × 140 mm Rifle Bearing Fan
  • Main power connector24Pin
  • 12V railsSingle
  • PCIe power connectors4 × 6+2-Pin

Model 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.

How it compares

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

Price $90.99
Cheaper than about 71% of the 10,869 comparable items (median $142.99).
Max wattage 650 W
Lower than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameCORSAIR
Product lineRM Series RM650
Model nameCP-9020194-NA
Product typeATX12 V
Graphics
SLI supportReady
Ports & slots
PCIe power connectors4 × 6+2-Pin
SATA power connectors6
Output type+3.3 V@20A, +5 V@20A, +12 V@54A, +5VSB@3A
Connection types1 x ATX CABLE 24-PIN (24)
2 x EPS/ATX12 V 8-PIN (4+4)
4 x PCIe 8-PIN (6+2)
6 x SATA
4 x PERIPHERAL (4-PIN)
Power
Max wattage650 W
Modular cablingFull Modular
Main power connector24Pin
12V railsSingle
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current10–5 A
Size & build
Product dimensions3.39 in × 5.91 in × 6.3 in
Product weight3.75 lb (1.7 kg)
Shipping weight2.86 kg
Package size310 × 218 × 135 mm
Compatibility
PSU length limit160 mm
In the box
Included itemsRM Series Performance ATX Power Supply
AC Power cord
DC Modular Cable Set
Cable Ties
More details
Fan configuration1 × 140 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 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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