Corsair CS550M 550W Hybrid Modular Power Supply

550W Corsair CS550M, Hybrid Modular, 80PLUS GOLD, 1x120mm, ATX v2.92, PSU

Scan code: LN54397 Manufacturer code: CP-9020076-UK Request call
Was: £69.98
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Delivery options £5.48 By DPD On 22nd Nov 2017 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

CS550M - Corsair Power Supply - Hybrid Modular ATX PSU

Corsair CS550M Power Supply 80PLUS - Gold

Corsair CSM 550W Power Supply

The CS550M is part of the CSM Series from Corsair, this PSU is perfect for people that low energy and noise with the bonus of a simple installation. The 550W Power Supply has an efficiency rating of 80PLUS GOLD which reduces the operating costs and excess heat. Since it generates less heat, the fan doesn’t need to work as hard, and you’ll enjoy near silent operation. The modular cables are sleeved in black and are clearly marked to make installation fast and easy.

View other CSM Series power supplies:
CS650M - CS750M - CS850M

Hybrid Modular Connectivity


CSM Hybrid Modular Cable Design

The flat, sleeved black cables are modular, so you’ll only use the cables you need and you’ll get great-looking results. The clearly-marked connectors make installation fast and straightforward.

CS550M Efficiency & Noise Graphs


Efficiency Graph


Noise Graph

Corsair CS550M Output Power Chart

Corsair CS550M ATX 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 43A 0.8A 3A
Frequency: 47Hz - 63Hz Maximum Combined Wattage 120W 516W 9.6W 15W
  Total Power: 550W
Size ATX
Wattage 550 W
80 PLUS Certification 80 PLUS Gold
Max. Efficiency 92 %
Cooling Fan
Fans 1 x 120mm
Internal +12V Rails Single Rail
Rail 1 +12V 43 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 43 A
Modular Yes
Modularity Hybrid Modular
SLI/CrossFire Yes
EPS 12V Yes
Motherboard Connector 20+4-pin
  • 1 x 4+4-pin CPU +12V (EPS)
  • 4 x 4-pin Molex
  • 2 x 6+2-pin PCIe
  • 1 x FDD Power
  • 5 x SATA
Package Type  

Please note your statutory rights are not affected.

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

36 months
DOA Period:
28 days
RTB Period:
36 months
Manufacturer Contact Details
0871 472 4747
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Date Issued: 25th Oct 2017

Power-supply units, or PSUs, are an integral part of any computer build. Often overlooked, it is the component that is likely to last the longest, and it can be moved between systems when you upgrade to the latest and greatest in the future.

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550W Corsair CS550M, Hybrid Modular, 80PLUS GOLD, 1x120mm, ATX v2.92, PSU is rated 4.4 out of 5 by 5.
Rated 3 out of 5 by from Infuriating ball sleeve fan Ok, so, great in terms of power delivery. 80+ Gold at this sort of money is fantastic. And reviews have given the power delivery a good thumbs up. I've bought one for my desktop, and two for servers. The weakness is a very cheap 120x25mm 1500 CFM *Ball Sleeve* fan, which wears out after about a year, then vibrates and makes a lot of noise. I RMA'ed the first one, service was OK (2 days for RMA auth, 4 days with collect+, 5 days for RMA turnaround and another day for a courier). Same fault 18 months later... You can, at that point, either carry on with the RMA dance, leaving you without a PSU for 2 weeks and having to remove from chassis, put another in, and then repeat 2 weeks later. Or you can void the warranty and put in your own fan of a similar spec. Went with the DIY route the second time round. Easy to do, especially if you pickup some 3M Scotchlok connectors (Best thing since sliced bread).. Disappointing that you have to go to that effort when I'm sure a decent set of bearings on a PSU would set corsair back a few pennies extra in china. And not like they don't know anything about fans...
Date published: 2017-07-12
Rated 5 out of 5 by from Great value for money! Amazing PSU, many great features for a decent price. 80+ Gold efficiency and semi modular which is great and has great electronic reviews online so its trusted. 100% recommend if you are looking for a new PSU in the price range or wattage.
Date published: 2017-04-24
Rated 4 out of 5 by from Gold at 80% about sums it up. This product is easy to understand and has been reliable in use thus far.
Date published: 2015-12-03
Rated 5 out of 5 by from What's not to like? It does the job of supplying power but with a nice touch, the plug in power leads means you only use what you need, avoiding clutter in the case. The unit is quiet, cool and efficient.
Date published: 2014-07-07
Rated 5 out of 5 by from Consistent and easy to use (modular). Never scrimp on your power supply, ever. Always go 80+ efficiency and get the best PSU you can in your budget. A 550W isn't going to be going into the highest-end systems, but this is a great PSU and well worth the money, even if it seems like a lot to spend when there are cheap options out there. The modular design means you only have to deal with the cables you actually need, meaning a tidier PC and better air flow. The build quality is very high and it's very quiet. Can't really find fault with it at all. A great buy.
Date published: 2014-01-08
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Questions & Answers

What cables does this come with?

I am wondering what cables and connectors does this come with? I am looking for a new psu to work with a HDD, SSD, 1060 6gb zotac card, h110m mobo, i5 6400, 8gb ram and a htc vive and I am wondering is this sufficient?
Asked by: meme
Hello, This comes with the following: 1 x 20+4-pin 1 x 4+4-pin CPU +12V (EPS) 4 x 4-pin Molex 2 x 6+2-pin PCIe 1 x FDD Power 5 x SATA These should be sufficient connections for those components. Regards,
Answered by: JackB
Date published: 2017-10-10

SATA power connectors

The table at the top lists this as having 6 SATA connectors, the table lower down says 5 - which is correct? (I'm pricing up a 6 drive home server, so that 6th one is important!)
Asked by: jas88
Hello, This PSU has 6 SATA connectors. Thanks,
Answered by: LizN
Date published: 2015-10-31
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Corsair CS550M 550W Hybrid Modular Power Supply
Corsair CS550M 550W Hybrid Modular Power Supply