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Black rectangular ATX power supply unit with 120 mm fan grille and black sleeved cables visible

Corsair

Corsair CP-9020278-NA CX650 650 W power supply

SKU CH-2AYN-P4EP1 MPN CP-9020278-NA

An ATX power supply delivering 650 W with 80 PLUS Bronze efficiency up to 88%, a 120 mm thermally controlled fan, and a compact 125 mm depth

  • Max wattage650 W
  • Fan configuration1 × 120 mm
  • PSU length limit125 mm
  • Efficiency certification80 PLUS BRONZE Certified
  • Supply voltage100–240 V
  • AC input frequency47–63 Hz

Model CX650

  • 80 PLUS Bronze certification delivers up to 88% efficiency, reducing heat and energy costs
  • 120 mm thermally controlled fan runs quietly at low loads, spins faster only under heavy stress
  • Compact 125 mm casing fits almost all modern ATX cases with ease
  • 650 W continuous output with +12 V rail rated at 52 A powers demanding components reliably
  • Black sleeved cables and powder-coated finish match clean, dark-themed builds

650 W ATX power supply for desktop builds

The Corsair CX650 delivers 650 W of continuous power through a single 120 mm thermally controlled fan. It carries 80 PLUS Bronze certification for up to 88 percent efficiency at typical loads. The compact 125 mm casing fits most modern chassis and the black sleeved cables keep the interior tidy.

Included cables and mounting hardware

The box contains the power supply, a mains cord, mounting screws and cable ties for routing. Fixed cables provide one 24-pin ATX connector, one 8-pin EPS connector split as 4+4, two 8-pin PCIe connectors each split as 6+2, three SATA connectors on one lead and two PATA connectors on another. Cable lengths range from 400 mm to 500 mm with 100 mm spacing between plugs.

Compatibility checks before ordering

Verify that your case can accommodate a 125 mm deep ATX unit and that the 24-pin motherboard, 8-pin CPU and required PCIe connectors match your components. Confirm the mains input range of 100 to 240 V at 47 to 63 Hz suits your local supply. Ensure the +12 V rail capacity of 52 A covers the graphics card and CPU combined draw.

How it compares

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

Price $57.99
Cheaper than about 87% 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 lineCX series
Model nameCX650
Part numberCP-9020278-NA
Product typeATX
Ports & slots
Output type+3.3 V@24A, +5 V@20A, +12 V@52A, +5VSB@3A
Connection types1x ATX Cable (24-PIN) (24)
1x EPS/ATX12 V Cable (8-PIN) (4+4)
2x PCI-E Cable (8-PIN) (6+2)/(6+2)P
3x SATA CABLE (3 SATA)
2x PATA CABLE (2PATA)
Power
Max wattage650 W
Efficiency certification80 PLUS BRONZE Certified
Supply voltage100–240 V
AC input frequency47–63 Hz
Rated input current10A-5A
Size & build
Product dimensions4.92 × 5.91 × 3.39 in
Product weight4.18 lb (1.9 kg)
Shipping weight2.16 kg
Package size254 × 184 × 96 mm
Compatibility
PSU length limit125 mm
In the box
Included itemsCX650 Power Supply | Power Cord | Mounting Screws | Cable Ties
More details
Fan configuration1 × 120 mm

Other versions of this model

3 more in the same range

Questions about this item

Will this 650 W unit fit in a standard mid-tower case?

The casing is 125 mm long, which fits almost all modern ATX cases.

How many graphics-card power plugs are included?

Two PCI-E cables are supplied, each with a 6+2 pin connector for 8-pin graphics cards.

Does the fan run constantly at full speed?

The 120 mm fan is thermally controlled and only spins fast under heavy load, staying quieter at lower loads.

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