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Corsair 650 Watt RMx Fully Modular RM650X ATX PSU/Power Supply

650W Corsair RM650x Series, Full Modular, 80 PLUS Gold, SLI/CrossFire, Single Rail, 54A, 135mm Fan, ATX PSU

Scan code: LN67193 Manufacturer code: CP-9020091-UK Request call
Spend over £225 and Buy Now, Pay Later or spread the cost of your finance over 24-48 months with a 10% deposit.
High End
Delivery options £5.48 By DPD On 26th Mar 2018 DPD Delivered to your specified address. Receive SMS with one-hour delivery window. £4.79 Collect from local shops UPS and DPD Pickup Collect your parcel from your newsagents, petrol stations and convenience stores. Free Collect Instore Q-Collect Place your order online and collect from our Bolton store with Q-Collect. Weekend, timed and European delivery options are available at checkout ScanProtect protection ScanProtect Protect against installation damage for 28 days.More
Frequently Bought Together

RM650x - Corsair Power Supply - Fully Modular ATX PSU

Corsair RM650x Power Supply 80PLUS - Gold

Corsair RMx 650W Power Supply

This version of the RMx Series power supplies from corsair comes white a total power output of 650W. The RM650x gives you extremely tight voltage control with near quiet operation. The 80PLUS GOLD rating on this PSU reduces operating costs and excess heat. The Zero RPM fan mode ensures virtual silence at low and medium loads. It also features a fully modular cable set, these DC cables makes building and upgrading your PC easier and leaves it looking great.

View other RMx power outputs:
RM550x - RM750x - RM850x - RM1000x

Fully Modular Connectivity


RMx Fully Modular Cable Design

The fully modular design of the RMx power supply means that during your build you can mount the PSU in the case first and then attatch only the cables you need, making builds and upgrades easy with great looking results.

RM650x Efficiency & Noise Graphs

RM650x Efficiency

Efficiency Graph

RM650x Fan Noise

Noise Graph

Corsair RM650x Output Power Chart

Corsair RM650x Fully Modular Power Supply
AC Input Rating DC Output Rating
AC Input: 100V - 240V DC Output +3.3V +5V +12V -12V +5Vsb
Current: 13A - 6.5A Max Load 25A 25A 54A 0.8A 3A
Frequency: 47Hz - 63Hz Maximum Combined Wattage 130W 648W 9.6W 15W
  Total Power: 650W

Corsair RM650x Key Features

80PLUS - Gold

80 PLUS Gold CertifiedGold certification ensures high efficiency operation for less excess heat and lower operating costs.

Japanese Capacitors

Japanese 105°C capacitorsPremium internal components ensure solid power delivery and long term reliability.

Zero Fan Mode

Zero RPM Fan ModeFan doesn’t turn on until it’s needed, so you’ll enjoy virtually silent operation at low and medium loads.

10 Year Warranty

Ten Year WarrantyYour guarantee of reliable operation that will last across several system builds.

Size ATX
Edition RM650x Series
Wattage 650 W
80 PLUS Certification 80 PLUS Gold
Max. Efficiency 92 %
Cooling Fan
Fans 1 x 135mm
Internal +12V Rails Single Rail
Rail 1 +12V 54 A
Rail 2 +12V N/A
Rail 3 +12V N/A
Rail 4 +12V N/A
Rail 5 +12V N/A
Rail 6 +12V N/A
Max. Combined Output +12V 54 A
Modular Yes
Modularity Full Modular
SLI/CrossFire Yes
EPS 12V Yes
Motherboard Connector 20+4-pin
  • 1 x 4+4-pin CPU +12V (EPS)
  • 7 x 4-pin Molex
  • 4 x 6+2-pin PCIe
  • 1 x FDD Power
  • 8 x SATA
Dimensions 150 x 86 x 160 mm (WxHxD)
Package Type  

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

120 months
Return to base
RTB Period:
120 months
Manufacturer Contact Details
0871 472 4747
Customers also bought
650W Corsair RM650x Series, Full Modular, 80 PLUS Gold, SLI/CrossFire, Single Rail, 54A, 135mm Fan, ATX PSU is rated 4.6 out of 5 by 14.
Rated 4 out of 5 by from Nice power supply Was easy to work with when fitting into a Fractal Design Meshify C case. Price seems reasonable for a power supply from a known brand. I do hear a buzzing sound from the supply sometimes which is somewhat annoying when my computer is idle. I can solve this by re-seating the power cable.
Date published: 2018-02-17
Rated 5 out of 5 by from Most Valuable Power Supply Really quiet fan and probably the most valuable power supply I have ever had.
Date published: 2017-12-30
Rated 5 out of 5 by from Modular PSU A well rated and well made PSU. Does what's expected no problem. Just slightly disappointed in the plain PVC cables for the price. They work fine which I suppose is the point but they don't look or feel great. Even my older cheap OCZ PSU came with braided and heatshrunk cables. Cynically Corsair do offer a leaflet in the box to upsell better cables.
Date published: 2017-12-15
Rated 5 out of 5 by from Really quiet and stable power Works really well, no issues, runs quietly as the fan is off most of the time.
Date published: 2017-12-05
Rated 5 out of 5 by from An excellent very quiet power supply An excellent very quiet power supply Easy to fit, the modular design allows just those cables which are needed to be attached, avoiding the jumble of cables on units with integral cabling. The cables are sufficiently long for use in large tower cases, but not too long to "clog-up" the case. In particular the extra 8 point connector for the CPU chip is of correct length, unlike some other makes.
Date published: 2017-11-12
Rated 5 out of 5 by from High build quality I've used a few different brand PSU, this is the best one, quiet running & no buzzing noise when powered down Highly recommended
Date published: 2017-09-09
Rated 5 out of 5 by from great product just like ronseal this, great addition to my home built pc
Date published: 2017-09-04
Rated 5 out of 5 by from Very Happy As always the service received by Scan was superb, not only that but this product has been an absolute dream. Replacing a generic iCute PSU that had proprietary cabling for it's modular system, this system comes with more cables than I imagine I will ever use, but also runs at a whisper - even when my R9 280 is running the Witcher III at 4K on almost Ultra settings.
Date published: 2017-05-10
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Questions & Answers

will this PSU work with the latest Heswell 5820K CPU motherboard Asus X99-A

Asked by: dddd
Why wouldn't it?
Answered by: StatusRed
Date published: 2017-12-05
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Corsair 650 Watt RMx Fully Modular RM650X ATX PSU/Power Supply
Corsair 650 Watt RMx Fully Modular RM650X ATX PSU/Power Supply