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Item#: N82E16817182262

Rosewill CAPSTONE-550-M 550W Continuous @ 50°C, Intel Haswell Ready, 80 PLUS Gold, ATX12V v2.31 & EPS12V v2.92, SLI/CrossFire Ready, Modular Active PFC Power Supply

  • ATX 12V v2.31 / EPS12V v2.92
  • 100 ~ 240VAC
  • 80 PLUS Gold Certified
  • Modular Design
  • Efficiency Up to 92%
  • 7-Year Warranty

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

The Rosewill CAPSTONE 550-M is a premium 80 PLUS GOLD certified power supply that delivers unprecedented performance, uncompromised features with unbeatable efficiency vital to today's high-end system. CAPSTONE's black coated casing and rock touch evokes a sense of high quality. It features active PFC with auto AC-input voltage adjustment (100 ~ 240V), mesh sleeves on all cables for easier cable routing and better ventilation, and one 140mm fan with auto fan speed control for efficient, silent cooling. Modular cable design helps reduce bulk and clutter inside the chassis. An array of safety & EMI approvals including cTUVus, FCC, CE and RoHS ensures outstanding reliability, durability and eco-friendliness.

  • newegg 550W Power Output with Single Strong 12V Rail The Rosewill CAPSTONE-550-M power supply delivers rated 550W @ 122°F (50°C) of safe, reliable output for your computer systems. One single strong +12V rail with max 546W output and 2 x 6+2-Pin PCIe connectors can juice up your high-end CPU and even multiple graphics cards.
  • newegg 80 PLUS GOLD Certified The 80 PLUS GOLD certified power supply provides ultra-high power efficiency of at least 87% at any load between 20% and 100%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.
  • newegg Modular Cable Design With necessary 20+4-pin and 4+4-pin ATX12V / EPS12V connectors fixed, the modular cable design allows use of only the cables you need for reduced system clutter and improved air flow.
  • newegg Comprehensive Protection Over Temperature / Current / Voltage / Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety to your critical system components.
  • newegg NVIDIA SLI Ready & AMD CrossFireX Certified The Rosewill CAPSTONE-550-M is AMD CrossFireX and NVIDIA SLI Ready and comes with 2 x 6+2 Pin PCI-E connectors enabling you to build a high performance multi-GPU gaming system.
  • newegg Silent Cooling One silent 140mm fan with auto fan speed control delivers excellent heat dissipation at low noise, keeping your PSU running at peak performance.

Learn more about the Rosewill CAPSTONE-550-M

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 7 years
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the Rosewill CAPSTONE-550-M

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  • Kevin M.
  • 4/6/2015 1:16:09 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggs

Pros: Was great. quiet. cool, easy management compared to some of the other ones

Cons: After about 4 months the fan squeaks, its like its unbalanced and is very, very annoying.

1 out of 1 people found this review helpful. Did you? Yes No

  • Shant A.
  • 12/2/2014 4:44:14 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsExcellent

Pros: Extremely quite and powerful

Cons: none

Did you find this review helpful? Yes No

  • Stefan O.
  • 11/25/2014 9:26:19 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsMany Thoughts

Pros: * Amazing build quality, truly top tier
* Modular braided cables
* Gold rated
* Rosewill & Newegg both provided extremely fast and amazing customer support.

Cons: * My first one died in under 3 months under moderate conditions

Other Thoughts: Things happen. It is unrealistic to expect a 100% ratio of products. Mine failed but Rosewill didn't give me any hassle at all to replace. Thank you Rosewill, this is why people buy from you.

Did you find this review helpful? Yes No

  • Joseph B.
  • 11/19/2014 2:06:50 AM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsRosewill 550W Power supply

Pros: Just arrived, a day early, installation was really easy. All of the cords are nicely packed, and it power on as expected, but quieter!

Cons: None so far!

Did you find this review helpful? Yes No

  • Jackson M.
  • 11/18/2014 7:56:18 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsPerfect

Pros: Looks simple and clean.
Quiet fan.
GOLD certified.
Modular enough.
Solid/heavy build.
Got it cheap.
7 (Seven!) year warranty.

Cons: None I can see.

Other Thoughts: Perfect PSU. Quite a few Rosewill products with my new build, and their build quality has impressed me on every one.

Did you find this review helpful? Yes No

  • Paul P.
  • 11/2/2014 8:28:51 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsCapstone line is solid

Pros: Incredible. They just keep going and going.

Cons: None

Other Thoughts: I've been buying the capstone line from Rosewill for two years now. I have not had a single problem with their modular system. They are solid, reliable, Gold rated and I've been putting them in all the system that my clients order from me.

Did you find this review helpful? Yes No

  • Jeff R.
  • 9/24/2014 4:59:25 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsRuns cool and quiet

Pros: Runs cooler and quieter than lower powered units. Modular

Cons: none

Did you find this review helpful? Yes No

  • James S.
  • 9/13/2014 4:15:31 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsPlenty of Power for Home Builds

Pros: First time I have ever used a Rosewill power supply but with the feedback here plus 80 Plus Gold certification and the significant drop in price I was sold for a new home office build I was putting together for my parents.

It is perfect in a HAF 912 case.

1) Modular Cables
2) Well packaged.
3) More than enough power.
4) Solid manufacturing

Cons: Cannot think of one except the possibility of needing an additional SATA cable.

Other Thoughts: I will definitely use this power supply for future home builds.

Did you find this review helpful? Yes No

  • Kaitlyn C.
  • 9/12/2014 11:51:33 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsDecent power supply

Pros: Fit well in a Corsair 200R case. Cables were adequate length. Modular and 80 Plus Gold. Voltages look good. Came with plenty of zip ties for cable management.

Cons: None so far.

Other Thoughts: Take into account the fan guard sits just a little bit taller than the rest of the PSU. It still fit into the case, but required a tad bit of force since the fan guard was partially in the way.

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  • Michael S.
  • 5/12/2014 3:28:13 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSilent with more power than I will need for a while

Pros: Having owned a few other Rosewill products, I know that they are well built and thend to last, so I had no problem choosing Rosewill for my new power supply. No flashy LED fans here. It just quietly feeds juice to my components. It's fan is probably the most quiet fan in my case. Love that it is modular so I only have to attach the cables that I need to cut down on clutter.

Cons: None

Other Thoughts: Quiet with plenty of power. No drawbacks or negatives.

Did you find this review helpful? Yes No

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