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CORSAIR CX650 Small 650W Power Supply – Black9.2Our score 4 photos
CBrandCorsairCCorsair32 products in our catalogSee all Corsair products →ID DBD-18392

CORSAIR CX650 Small 650W Power Supply – Black

9.2/10 our score 4.6 (430 ratings on Amazon)

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

Form FactorATX

About this item

  • 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.
Category: PC Parts › Internal Power SuppliesRanked #99 of 616 in PC Parts
9.2Our score
Our verdict

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

Ranked #99 in PC Parts · 4 things we like

Quick answer The CORSAIR CX650 Small 650W Power Supply scores 9.2/10 with us. Amazon owners rate it 4.6 out of 5 across 430 reviews, in line with the 4.5 average of the 82 internal power supplies we track. It was listed at $71.19 on Amazon when we last checked in September 2026.

CORSAIR CX Series Power Supplies are 80 PLUS Bronze Certified, offering up to 88% operational efficiency for reduced heat and lower energy costs. Their full continuous power delivery guarantees consistent performance, while a 120mm thermally controlled low-noise cooling fan ensures quiet operation. Fitting easily into most modern PC cases with its compact 125mm length, the CX Series features black sleeved cables and a black powder-coated casing to fit your PC's style.

Enjoy confidence in your purchase with a three-year warranty and the support of CORSAIR's global technical team, ensuring dependable power for your system.

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Product information

23 specifications
Compatible DevicesMonitor
Connector Type Used on CableATX
Output Wattage650 watts
Form FactorATX
Wattage650 watts
Cooling MethodAir
Power Supply DesignNon-Modular
Number of Fans1
Fan Size12 centimeters
Maximum Input Voltage240 volts_of_alternating_current
Minimum Input Voltage115 volts
System Bus Connector TypePCIe
Item Dimensions4.92 x 5.91 x 3.39 inches
Item Weight4.2 pounds
Model NameCX650
BrandCorsair
Number of Packs1
Number of Items1
Unit Count1 Count
Model NumberCP-9020278-NA
Mfr Part NumberCP-9020278-NA
Warranty Description3 Years Manufacturer
Item HighlightLow-Noise, Non-Modular, 80 PLUS Bronze, NA

Pros & cons

What we like
  • 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.
What could be better

    CORSAIR CX650 Small 650W Power Supply: questions & answers

    Is the CORSAIR CX650 Small 650W Power Supply worth buying?

    Yes, it is one of the stronger picks in its group. We score the CORSAIR CX650 Small 650W Power Supply 9.2 out of 10. Amazon owners rate it 4.6 out of 5 across 430 reviews, in line with the 4.5 average of the 82 internal power supplies we track.

    How much does the CORSAIR CX650 Small 650W Power Supply cost?

    It was listed at $71.19 on Amazon when we last checked in September 2026. That is close to the $82.99 median for internal power supplies in our catalog. Amazon prices change daily, so use the price button on this page to see the current figure.

    What options does the CORSAIR CX650 Small 650W Power Supply come in?

    Amazon lists 4 options. Style: Non Modular, Semi-Modular. Size: 750 Watts, 450 Watts, 650 Watts. Pick an option on this page and the button opens exactly that model.

    What are good alternatives to the CORSAIR CX650 Small 650W Power Supply?

    Similar, well-rated internal power supplies in our catalog: CORSAIR CX650M (9.4/10, 4.7 stars from 71 owners); CORSAIR SF750 (8.6/10, 4.3 stars from 184 owners); CORSAIR HX1500i Shift ATX 3.1 PCIe 5.1 Ready (8.6/10, 4.3 stars from 16 owners).

    CORSAIR CX650MCORSAIR SF750CORSAIR HX1500i Shift ATX 3.1 PCIe 5.1 Ready

    Customer reviews

    All reviews on Amazon
    4.6430 global ratings
    5 star89%
    4 star11%
    3 star0%
    2 star0%
    1 star0%

    Breakdown from the 9 most helpful reviews we imported.

    A
    Aldemar Barboza Ramos
    Verified purchaseAugust 24, 2026
    Excelente producto

    Excelente producto

    W
    witnesstoo
    Verified purchaseJuly 16, 2026
    Works well

    Works well Good value for fine

    D
    Diego Alejandro Ortiz Gutierrez
    Verified purchaseJuly 27, 2026
    650

    al final no me sirvió por que elegí una gráfica que necesitaba cable de 12pines, pero la tengo por si acaso decido en un futuro armar una pc más normalita

    E
    Eggs salted Waltz
    Verified purchaseMarch 28, 2026
    A okay budget psu!

    A decent psu for the price only real complaint is the sata power connectors taking a bit of mangling to connect all 3 as it is a single cable split into 3 short connectors. Powers a old ryzen 2600 and 5700 xt without issue till upgrade time!

    R
    Ricardo Gomez
    Verified purchaseApril 16, 2026
    Well it is good, but I never thought I needed more power.

    If you are going to purchase this one just take into consideration if you are planning on adding upgrades to your PC that requires higher power supply. I mean, I loved it, and the quality is just way too good but I now need a bigger one just because of upgrades.

    J
    Jhon Eduar
    Verified purchaseJuly 23, 2026
    Muy bonito

    Todavía no lo he usado, pero se ve de muy buena calidad

    N
    NEIL ARMSTRONG FRANCO ECHAVARRÍA
    Verified purchaseJuly 27, 2026
    Excelente

    Excelente Fuente

    T
    TheDarGgous
    Verified purchaseJuly 21, 2026
    Perfect and agile delivery

    Perfect the conditions of the device

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.