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Corsair · 650 W · ATX

CORSAIR CX650

ATX 2.3 · 80 PLUS Gold · Fixed cables

Capability
58
Cap / price
74
Wattage value
66
Amazon
$79
CORSAIR CX650
View CORSAIR CX650 Gallery in high resolution
$79
Available on Amazon Updated Aug 30, 2026 Prime FBA
Capability58.2
Capability / price73.7
Wattage value65.8
$79 on Amazon PSU table Compare this PSU

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Written analysis

CORSAIR CX650 at a glance

The CORSAIR CX650 is a 650 W ATX power supply built to the ATX 2.3 generation. Efficiency is listed as 80 PLUS Gold. Cables are fixed.

The calculated capability score is 58.2, averaging the available wattage, recorded efficiency percentage, and warranty inputs against fixed references. Listed warranty is 5 years. +12V output is 52 A.

Best fit: Mainstream gaming and productivity builds where efficiency and cable management matter.

Platform and cooling

Dimensions are listed as 4.92 x 5.91 x 3.39 inches. Cooling fan size is 120 mm. The unit uses 1 +12V rail at up to 52.00 A per rail. Certifications include 80 PLUS Gold.

Current value

At $79, price per kilowatt is $121.54. Capability / price is 73.7 and wattage value is 65.8. Compare nearby supplies below; wattage alone does not determine value.

Unit data

Full specifications

Wattage, efficiency, platform size, electrical outputs, connectors, cooling, and value in one technical sheet.

General

Manufacturer
Corsair
PSU
CORSAIR CX650
Launch price
—
Amazon price
$79
Amazon availability
Available
Price updated
Aug 30, 2026

Power & efficiency

Wattage
650 W
Efficiency
80 PLUS Gold
Recorded efficiency
88%
Warranty
5 years

Value

Amazon price
$79
Price / kW
$121.54
Capability
58.2
Capability / price
73.7
Wattage value
65.8

Platform & size

ATX generation
2.3
Form factor
ATX
Dimensions
4.92 x 5.91 x 3.39 inches
Modular
No
Fanless
No

Electrical

Input voltage
100-240
+12V output
52 A
+5V output
20 A
+3.3V output
24 A
+12V rails
1
Max amps / rail
52.00 A

Cooling & build

Fan size
120 mm
Fan stop
No
Certifications
80 PLUS Gold

Additional information

Also listed as
CX650
Color
Black

Amazon

Price history

Nearby capability

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

80 PLUS Bronze Certified: Provides up to 88% operational efficiency, generating less heat and lowering your energy costs.

Full Continuous Power: CORSAIR CX Series power supplies are guaranteed to deliver their full rated wattage of continuous power.

Low-Noise Cooling: A 120mm thermally controlled low-noise cooling fan only spins at high speed when your power supply is under heavy stress, slowing down for quieter operation at lower loads.

Compact Casing: 125mm length ensures an easy fit in almost all modern PC cases.

Black Sleeving and Casing: Black sleeved cables and a black powder-coated casing seamlessly fits your PC’s style.

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