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COOLMAX NW-650B 650W ATX12V v2.2 SLI Ready / CrossFire Ready and Compatible with Core i3/i5/i7 Power Supply

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  • ATX12V v2.2
  • 115 / 230 V
  • Smart cable management

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

A great blend of performance and features, the COOLMAX NW-650B power supply offers an ideal choice for discerning users wanting reliable output at great price. Dual PCI-E connectors gear it up for multiple graphics.  The cooling system boasts a fan size of 120mm with automatic settings so you no longer have to worry about high or low settings or if your fan is spinning too slow or too fast. The NW-650B will adjust itself according to the necessary heat dissipation level.

  • newegg 650W Output The COOLMAX NW-650B provides 650W of reliable output for your entire system. Three 12V rails with 540W max. combined output juice up demanding CPU and multiple graphics cards.
  • newegg NVIDIA SLI Ready & AMD CrossFireX Ready This power supply unit is AMD CrossFireX and NVIDIA SLI Ready and comes with 6-Pin PCI-E connectors enabling you to build a high performance multi-GPU gaming system.
  • newegg Reliable Protection Over/Under voltage protection safeguards your system components.
  • newegg Excellent Cooling 120mm speed adjustable fan achieves efficient cooling with quiet acoustics.

Learn more about the CoolMax NW-650B

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details
  • Return Policies
    • Return for refund within: 30 days
    • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy.
2/ 5
product not ment to last

Pros: it lasted for 3 years

Cons: it lasted for 3 years, started to smell today, and i go down to look at it and it pops like a firecracker.. died less than 3 years. i have a serial number to verify. not cool...max.

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Ownership: 1 month to 1 year
Verified Owner
1/ 5
was a good product when it lasted

Pros: did not have any problems with connecting it.

Cons: could use more plugs-longer cords. have a full size tower.
had it for less then 7 months and it dose not power on anymore. heard it short circuit i do not know if it effected anything ells. did plug in a different power supply and the cpu light was red.

Other Thoughts: yes i would recommend this to people i'm assuming i just got a defective product.
i am planing on contacting support should still be under warranty.

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Ownership: more than 1 year
Verified Owner
2/ 5
lasted 3 years

Pros: Lasted 3 years. worked well when it worked.

Cons: Failed after 3 years.

Other Thoughts: bought on 2/15/2012, lasted until 2/?/2015

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Ownership: 1 month to 1 year
Verified Owner
4/ 5
Decent PSU for Price

Pros: Decent performance for price
Plenty of connectors
Suited well for bottom mounted cases
Quiet

Cons: Average looks, not meant to be seen

Other Thoughts: Put this in my sons new rig, didn't need anything fancy, just enough power to get the job done. No SLI or crazy watercooling, didn't even max out fans in case, just a few LEDs besides the basic components. Performance for the price is well worth it as long as your not looking for anything visually appealing. I was a little unimpressed with the way it looks, so luckily the case has a really small window so its not seen. It is quiet and haven't had any issues with it so far. The only reason I gave it 4 eggs was for the looks, they could have least taken the big spec sticker off the side, but it is what it is.

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Ownership: 1 week to 1 month
Verified Owner
3/ 5
never written a bad review

Pros: can't really call it doing what it should a pro

Cons: no complaints about the psu itself. it's doing what it should.
my issue is the rebate company coolmax uses is ridiculous! it was the most blatant "we're trying to make this difficult" rebate I've ever filed for. They all make stupid rules to keep from having to pay but coolmax needs to get rid of these guys. I may never buy another coolmax case or psu until I know I won't have to jump through so many moronic hoops for $20

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Ownership: 1 day to 1 week
Verified Owner
5/ 5
Awesome PSU

Pros: ♦Very Quiet
♦Plenty of power to support my rig and possibly expand with.
♦SLI and CrossFireX capable is always a plus.

Cons: ♦None

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Ownership: more than 1 year
Verified Owner
5/ 5
Best Ever

Pros: Bought this Power Supply 11/19/2011 for a new system build.. This thing has been Rock Solid every since. It was bought for a Mid Range Gaming system that has been threw the torture test..

Cons: Not a dang thing.

Other Thoughts: Just wish I would of bought 3-4 of them, I have gone threw more expensive power supplies on other systems that haven't lasted as long as this one has..

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Ownership: 1 week to 1 month
Verified Owner
1/ 5
Nope!

Pros: Price

Cons: Died on week 3 and unable to resuscitate, thankfully i still had my old Roswell 550 on hand. Going to return just have had the opportunity to yet.

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  • New : This means the product will ship as received by the manufacturer, sealed, with all advertised components, and with the manufacturer warranty.
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  • Used - Like New : This means that the product has been opened, possibly used but is in perfect condition with no signs of cosmetic or functional defect. Product may includes warranty, and accessories found with the original product. Product may or may not be in the original packaging. Returned items with minor packaging defects fall under this category.
  • Used - Very Good : This means that the product has been opened, may show slight signs of use and cosmetic blemish, and may be missing minor accessories, but remain in excellent condition. Product does not come with warranty unless stated otherwise in product description.
  • Used - Good : This means that the product has been used, may show clear signs of use and may be missing minor accessories, but remain in good condition. Product does not come with warranty unless stated otherwise in product description.
  • Used - Acceptable : This means that the product shows clear signs of use, cosmetic defect, and may be missing minor accessories and manual, but remain in working condition. Product does not come with warranty unless stated otherwise in product description. Functionality issues beyond signs of use should be disclosed in product description.
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