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Rosewill > 
Item#: N82E16817182096

Rosewill Xtreme Series RX950-S-B 950W Continuous @40°C ,80 PLUS Certified, ATX12V v2.2 & EPS12V v2.91, SLI Ready CrossFire Ready, Active PFC "Compatible with Core i7, i5" Power Supply

  • ATX 12V v2.2 & EPS 12V v2.91
  • 100 - 240 V
  • 80 PLUS Certified
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In a computing world of new video and audio cards, add-ons, higher-powered chips and even more, the search for power goes ever on. Rosewill's RX950-S-B satisfies your power-hungry virtual instincts, and keeps you running at your best. Clad in a sleek black shell, lit within with a cool blue light, the impression is one of cool, secret power, ready to do your bidding!

Four 12 volt rails deliver power to a myriad of connectors ready to attach to any and every accessory you’ve stuffed into your case! This compact powerhouse will run everything even up to 2 SLI-equipped GeForce GTX285 cards! Active Power Factor Correction provides clean and reliable power to all those pieces, and temperature, current and voltage protection circuits make sure everything stays healthy.

Run with the big boys with Rosewill's RX950-S-B PSU, and know you've got ergs to spare!

  • newegg ATX12V and EPS12V Compatible Compatible with the ATX12V v2.2 and EPS12V v2.91 standards, the Rosewill RX950-S-B provides maximum power stability to drive the processors as well as other components for desktop and server computer systems.
  • newegg 950W Maximum Power A maximum power of 950W delivers safe, reliable output for high-end PC systems. Four industry-leading independent +12v rails are provided for more stable and safer power output.
  • newegg 80 Plus Certified The 80 PLUS certified power supply provides high power efficiency of at least 80% 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 Quiet Operation The silent 135mm 2-ball-bearing blue LED fan delivers high efficient cooling and ensures quiet operation through fan speed adjustments in response to loading conditions.
  • newegg Excellent Mesh Cable Sleeving The Rosewill RX950-S-B power supply’s cables are wrapped in black mesh sleeving so your chassis stays neat for optimized air flow and enhanced cooling.

Learn more about the Rosewill RX950-S-B




ATX 12V v2.2 & EPS 12V v2.91
Maximum Power
Continuous 950W@40°C
1 x Silent 135mm 2 Ball-bearing Blue LED Fan
Active PFC
Main Connector
+12V Rails
PCI-Express Connector
2 x 6-Pin, 2 x 8-Pin
SATA Power Connector
SLI Ready
CrossFire Ready
Hold-up Time
> 16ms
> 80%
80 PLUS Certified
Over Voltage Protection
+3.3V +5V +12V1 +12V2 +12V3 +12V4
Input Voltage
100 - 240 V
Input Frequency Range
47 - 63 Hz
Input Current
15.0A / 7.5A
+3.3V@24A, +5V@30A, +12V1@20A, +12V2@20A, +12V3@20A, +12V4@20A, -12V@0.5A, +5VSB@3A
100k hours at 25°C, max. load, nominal input
5.91" x 3.39" x 6.22"
7.0 lbs.


1 x 20+4Pin Main Connector
1 x 4Pin ATX12V Connector
1 x 8Pin EPS12V Connector
2 x 8Pin PCI-Express Connector
2 x 6Pin PCI-Express Connector
6 x 4Pin Peripheral Connector
6 x 5Pin SATA Connector
2 x 4Pin Floppy Connector
2 x PCI-E 8pin to 6pin Adapte
Supports ATX12V v2.2 & EPS12V v2.91 standards
Supports both Intel and AMD Systems
Four 12V rails provide independent reliable power
Active power Factor Correction(PFC) with PF value=0.99 provides clean and reliable power to your system
SLI Ready - Support up to Dual GeForce 8800Ultra
12V Combined Output 810W (67.5A)
3.3V, 5V Combined Output 170W
3.3V, 5V, 12V Combined Output 929W
1x Silent 135mm 2 Ball-bearing Blue LED Fan with Auto Fan Speed Control
Black Chrome Mirror Finish
Mesh sleeving on all cables for easier cable routing and better ventilation
Built-in inrush current, over temperature/current/voltage protection circuits
Safety & EMI Approval: UL, TUV, CE, FCC, ROHS

Manufacturer Warranty

3 years limited
3 years limited

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years

Customer Reviews of the Rosewill RX950-S-B

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  • John M.
  • 5/28/2014 8:19:11 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsPower problems after 3.5 years

Pros: Good capacity for the price

Cons: Power available has severely decreased after roughly 3.5 years. I'm now attempting to return the unit under warranty.

Manufacturer Response:

Dear Valued Customer,
Thank you very much for purchasing this unit.
We strive to provide the most reliable and highest quality products to our customers.

This product comes with a 3 year warranty.

Phone: 1- 800-575-9885

We look forward to hearing from you.

Rosewill Customer Care

Did you find this review helpful? Yes No

  • Alexander B.
  • 12/15/2013 6:44:35 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsGreat PSU for the entirety of the warranty... then problems started happening

Pros: - More than enough wattage for any level of enthusiast gamer
- Shiny lights
- 3 year warranty
- 80 Plus Certified
- Cables wrapped in mesh for improved airflow
- Plenty of connections for SLI/Crossfire setup, multiple optical drives and multiple storage drives

Cons: - Cable length for (1 x 4Pin ATX12V Connector [secondary motherboard power connection]) leaves quite a bit to be desired - required adapter added just enough cable length to reach the connection on motherboard (see below)
- Also, concerning the the 1 x 4Pin ATX12V Connector, my motherboard required an 8Pin ATX12V connector, so I had to use an adapter

Other Thoughts: Had the PSU for 3 1/2 years and it just started having problems. Emitting a high-ptiched whine during gaming and then forcing a shutdown. Has ran constantly for my entire ownership of the PSU with the same setup, for the most part. Specs below:

- AMD Phenon II X4 965 Black
- 2x HIS Radeon HD 5830 1GB 256-bit GDDR5 (Crossfired)
- 16GB DDR3 1333
- 2 x Western Digital WD AV-GP WD10EVDS 1TB 32MB Cache SATA 3.0Gb/s (Raid 0)
- Cooler Master HAF X + Fully loaded w/ case fans

The powerload of my system isn't going to tax the PSU hardly at all...especially since it's supposed to be outputting 950W.

It's possible the fan on the PSU is starting to fail, and even when it's not emitting a whine, it is noisier now than when it I first installed it.

Either way I probably won't be buying a Rosewill again. Might try a Cooler Master next, as I'm very happy with the case construction.

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  • James D.
  • 11/10/2012 2:51:06 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsGood PSU

Pros: Suppled enough power to two 470"s, a Q9650 8gb of ram, and a 680i motherboard

Cons: Lasted Just past the warranty.... But Newegg and Rosewill as always came to the rescue and took care of me.

Did you find this review helpful? Yes No

  • Michael M.
  • 10/23/2012 11:59:32 AM
  • Tech Level: Somewhat Low
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsfailed after 26 months

Pros: lots of juice/ cables

Cons: stopped working

Other Thoughts: shiny

Manufacturer Response:

Please contact the Rosewill support team either via phone at 800-575-9885 or via email at so that we can assist you with your issue.
Rosewill Customer Care

Did you find this review helpful? Yes No

  • Michael O.
  • 9/27/2012 8:43:26 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsWorked good until today

Pros: Worked great for over 3 years!

Cons: Burned out (literally caught fire) right after 3-year warranty was up, and took some of my gear with it.

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  • Zachary G.
  • 3/6/2012 11:54:18 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsDies quick

Pros: Quiet and effective.

Cons: Died after three years

Other Thoughts: Not worth the buy honestly if its going to die so soon.

Did you find this review helpful? Yes No

  • Mr. v.
  • 10/30/2011 11:20:54 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggs3 years, 2 months - dead

Pros: Quiet, measurable efficiency (80%), lots of connectors

Cons: Dead after 3 years and 2 months! Cables not modular and really thick

Other Thoughts: I expect things to die, but I really expected 5 years out of this PSU. Considering it was $170 at purchase time (9/1/2008), that is a cost of $57/year.

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  • Mark S.
  • 10/14/2011 12:58:16 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsGood for 3 years, then crackled out

Pros: Looks good, lots of cables, worked well for 3 years.

Cons: Broke hard after three years. I expect PSUs and hard drives to fail, but after only three years?
Plus, the fact that it's not a modular PSU means that the profusion of cables is in your face no matter what.

Other Thoughts: 3 years at 5 stars combined with 0 stars for the rest of time gives 2 stars.

Did you find this review helpful? Yes No

  • Johnathan C.
  • 7/22/2011 5:37:13 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsUsed to be uber but not no more

Pros: Looks Great
Low Noise
A lot of wattage
Plenty of Cables

Cons: Not Modular
No fan speed settings
No LED settings
Did not last long enough for what i paid

Other Thoughts: I purchased this PSU from newegg on Oct. 2007. I paid $220 for this back then.It worked very well for a while. After about a year my PC started to reset on its own. Before i decided to blame the psu i checked all other options. I thought i had fixed the issue and i had no problems for about another 6 months. The resets started happening again. Once again it went away. About a month ago the random resets started to happen a lot more. This time it would reset many times in a row and then last for a few days no problems then act up again. I tried everything possible to make sure it was the PSU and not something else. Sadly i tried a alternitibe PSU i have " a 550w" and the issue was discovered. The 950 had gone bad. Rosewill would not replace it because it was past the 3 year mark. I guess there is a reason they have 3 year warenties and not 4 year.

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  • Robert K.
  • 9/19/2010 7:50:41 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsSo far so good

Pros: Seems like a good supply for the money. Not really taxing it yet but i bought it for a future sli upgrade. I am running a 930 i7 at 4ghz with it with a gtx 470 and it doesn't have a problem with this setup.

Cons: One of the power cords were not long enough to reach the top of the motherboard. I had to buy a molex converter to 8 pin to get it to reach the extra 6" or so that i needed. The antec 1200 case has the power supply on the bottom and the GIGABYTE GA-X58A-UD3R has a power connector on the upper left hand corner of the board so it was just too far around to reach. If it was a case with ps on the top if would not have been a problem.

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