Corsair CX650M PSU Review

Packaging, Contents, Exterior, And Cabling

Packaging

The box is pretty small. On its front is a picture of the PSU with its modular panel shown, along with the pair of native cables. The model number is highlighted inside a yellow frame and a couple of icons depict the 80 PLUS Bronze rating. On one of the two sides, Corsair lists the most important features, including 80 PLUS Bronze efficiency, the variable-speed fan, and the continuous power output. Of course, the temperature-controlled fan speed and continuous power output are common modern PSUs. Looks like Corsair's marketing team was out of ideas and didn't have anything catchy to write on this side of the box.

Up top, a graphical list depicts the available cables/connectors, including cable length. Finally, around back, two graphs depict the efficiency and fan noise curves, along with the power specifications table and a diagram showing the unit's dimensions.

Contents

The CX650M is only protected by bubble-wrap inside its box. We would like to see better protection, since shipping conditions aren't always ideal. Corsair's bundle includes a warranty leaflet and a user's manual, a set of fixing bolts, several zip-ties, and an AC power cord.

Exterior

In this price range we don't expect killer looks or a high-quality finish. The external design is plain and the finish is decent, given the CX650M's affordable price. Up front, the small power switch is installed above the AC socket with the cooling fan facing upwards.

Two stickers on the sides indicate the CX650M's model number, while a larger one on the bottom depicts the power specifications table, along with all conformity markings. For example the CE marking is a requirement for certain products that are destined for the EU market. In the U.S., the corresponding electronic devices should carry the FCC marking. The yellow Hi-Pot (High Potential) sticker verifies that the electrical insulation is high enough to protect users from electrical shorts (under normal operation conditions at least).

The small modular panel includes just five sockets. This is a mainstream, mid-capacity PSU, so you shouldn't expect a ton of available cables/connectors. Nonetheless, the CX650M is equipped with enough of them to satisfy folks covered by its capacity.

The PSU's footprint is pretty small, thanks to its reduced depth of 14 cm. The fan isn't centered, which looks kinds of strange. However, we believe that Corsair installed it this way to increase the airflow in areas that matter most.

Cabling

Although the CX650M is an affordable product, all of its cables use darkened wires. The native ones are even fully sleeved back into the chassis. In addition, all modular cables are flat. This is an advantage, since we prefer flat cables over round ones; they block less airflow inside the enclosure when they're routed properly.

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44 comments
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  • Dark Lord of Tech
    Thanks for the review on this new CXM platform.
  • JQB45
    Looks to be better then the old CX line up.
  • Onus
    Good to see that Corsair didn't produce a[nother] Turkey with this one.
  • turkey3_scratch
    Onus why would Corsair produce me?

    Anyway I think the price/performance page shows all. This thing rocks!

    Also Jonnyguru claims it is a rifle bearing fan that has the same model # as the sleeve variant.
  • benedict78
    Does the CX650 perform the same as the CX650M? I'm not interested in modularity anyway.
  • turkey3_scratch
    The CX650 is not out yet.
  • Aris_Mp
    I have several CM and CX-M units, which I plan to fully evaluate. So far I figured that there are differences (something natural of course) in their performance.
  • Dark Lord of Tech
    Could you put the newer CXM 750W OR 850W on deck soon , as they are widely use for DUAL CARD configurations.
  • turkey3_scratch
    The 750W and 850W CXM units are basically unchanged except for a bridge rectifier upgrade. Everything else is the same. Only the CX450-650M got the major revisions.
  • Dark Lord of Tech
    Yeah I know that , but want to see one reviewed , to compare top older generations.
  • Ryan_78
    Seems cool to be a CX now. Nice
  • bettsar
    After getting such high marks from the review, why no award?
  • Aris_Mp
    The CX750M is on the test bench right now. I don't have a CX850M sample.
  • Aris_Mp
    About the award. It should have a recommendation award but as it seems we forgot to add it. On it right now :)
  • Math Geek
    good to see them making a strong performer in a moderate price range. if they drop some massive rebates over the holidays like they do most years, this will be a super buy. i'm keeping my eye out to stock up on some. looks like a very solid buy.
  • atljsf
    the modularity is nice if you have a mini itx case, i have a cx500 and some of the unused cables are a bit inconvenient so that cx650m should be nice for those with not that small mini itx cases that can fit normal size psus
  • HERETIC-1
    Corsair spend $3 more and get all Jap capacitors and you'll have a good PSU.
    Oh you have-It's called the Vengeance series.(RECOMMENDED)
  • turkey3_scratch
    HERETIC you are severely misled. Do you realize there are Chinese capacitors of higher quality than Japanese? Do you realize how much ripple a capacitors handles and the environment the capacitors is in also affects it's lifespan a lot?

    Look at the thermal shots. The PSU is significantly cooler than was expected. That is fantastic for capacitor life. If you want to persist at judging power supplies based on capacitors country (and BTW a lot of Jap caps are outsourced to China) then you will be misled.
  • HERETIC-1
    So turkey are you saying Corsair's marketing "105C JAPANESE CAPACITORS"
    on their vengeance series is not necessary?
    I am more than happy to pay a little more when I see-
    "All electrolytic caps come from Nippon Chemi-Con"
  • turkey3_scratch
    The Vengeance series is a higher end unit than the CXM at a different price category for different countries. Not really fair to compare them.

    What more.could you possibly want at the price this thing sells for? This is the best value period and you have to find the need to talk about Japanese caps without even knowing the spec sheets of these caps used.
  • 10tacle
    "Finally, the number of provided cables and connectors is sufficient for this unit's capacity. And although it isn't fully modular, the native cables are absolutely necessary anyway."

    I've never understood the logic behind a "fully" modular PSU where all cables are completely disconnected and need to be plugged in. How exactly are you not going to use a PSU in a PC without the 20+4 pin ATX and 8 pin 12v CPU power connectors going to the motherboard?

    If anything, I'd want those connected directly during manufacturing to ensure nothing is lost (output or resistance) through a transfer connector port to the two most crucial power connectors.
  • atljsf
    202972 said:
    "Finally, the number of provided cables and connectors is sufficient for this unit's capacity. And although it isn't fully modular, the native cables are absolutely necessary anyway." I've never understood the logic behind a "fully" modular PSU where all cables are completely disconnected and need to be plugged in. How exactly are you not going to use a PSU in a PC without the 20+4 pin ATX and 8 pin 12v CPU power connectors going to the motherboard? If anything, I'd want those connected directly during manufacturing to ensure nothing is lost (output or resistance) through a transfer connector port to the two most crucial power connectors.


    the idea is that if you want a longer, half meter or a shorter, 15 centimeters long cable, you can change the one that came with the psu and put the one you need

    this is what most pc builders need this days, especially with mini itx cases where space is extremely limited
  • JQB45
    2011305 said:
    the idea is that if you want a longer, half meter or a shorter, 15 centimeters long cable, you can change the one that came with the psu and put the one you need this is what most pc builders need this days, especially with mini itx cases where space is extremely limited


    So If I buy power supply "A" for my mITX build and its fully modular but the cables are to long, where do I go to get shorter cables?
  • turkey3_scratch
    Cables cost like $100.