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Item#: N82E16817182072

Rosewill RX850-S-B - Xtreme Series 850-Watt Active PFC Power Supply - Continuous @ 104 Deg. F (40C), 80 PLUS Bronze, ATX 12V v2.2 & EPS 12V v2.91, SLI & CrossFire-Ready, Compatible with Core i7, i5

  • ATX 12V v2.2 & EPS 12V v2.91
  • 100 ~ 240VAC
  • 80 Plus Bronze Certified
  • Efficiency Up to 87%
  • 135mm Ball-Bearing Blue LED Fan
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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 RX750-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! 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 RX750-S-B PSU and know you've got power to spare!

  • newegg ATX12V v2.2 and EPS12V Compatible Compatible with the ATX12V v2.2 and EPS12V v2.91 standards, the Rosewill RX750-S-B provides maximum power stability to drive the latest Intel and AMD processors as well as other components for desktop and entry-level server computer systems.
  • newegg 750W Continuous Power A continuous power of 750W delivers safe, reliable output for high-end computer systems. Four industry-leading independent +12v rails are provided for more stable and safer power output.
  • newegg 80 PLUS BRONZE Certified The 80 PLUS BRONZE certified power supply provides ultra-high power efficiency of at least 82% 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 Quad PCI-E Connectors With quad 6-pin PCI-E connectors, the Rosewill RX750-S-B is ideal for building up a SLI or CrossFire gaming system.
  • newegg Quiet Operation A 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 RX750-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 RX850-S-B

Quick Info


Customer Reviews of the Rosewill RX850-S-B

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  • Christopher S.
  • 5/10/2015 6:46:38 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsOl' reliable!

Pros: Worked flawlessly for my system since 2012!

Cons: Many many cables, and I have a smaller case, so cable management is atrocious.

Other Thoughts: I'd rather have too many cables than not enough. Still, it's never failed me and lasted for some time now. I highly recommend it!

Did you find this review helpful? Yes No

  • Adam M.
  • 2/20/2015 10:28:01 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsWorked Great for 2 years 11 Months

Pros: Worked with out and issue for 2 years 11 months. Failed exactly one month prior to the warranty running out. I run my PC 24/7 365 days a year. RMA process was easy Shipped back on a Monday. They received it on Thursday and ship the replacement on Friday the same week.

Cons: Had to pay $25.00 to box and ship back, It failed

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  • Mike R.
  • 2/10/2015 8:19:40 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNice!

Pros: Quiet and does the job racing PC simulator with triple screens.

Cons: bulky connectors

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  • Colton G.
  • 11/29/2014 7:43:40 AM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsGreat if you like broken products

Pros: What pros?

Cons: -Failed to power full 750W to my machine
-Shorted a 6870 of mine as it didn't get enough power
-System would instantly shut off starting a game
-Made with bad quality internals, very lightweight PSU compared to the higher quality ones I have

Other Thoughts: Buy a Seasonic or a higher-end Corsair, Antec

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  • Alan B.
  • 7/21/2014 3:54:32 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWorks Great

Pros: Haven't had any issues with this power supply yet. Love that it is modular, it runs great, never gets too hot, and I haven't had any issues so far

Cons: Wish there were less cords, but that's not really the power supply's fault

Other Thoughts: BF bought the 850W version recently to replace a shot power supply and it works like a charm as well. Also, it comes with a nice velcro wrapper for the body cords and several black zip ties. Nice touch.

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  • Ramon F.
  • 5/29/2014 9:13:02 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsCrapped out after 5 months

Pros: It supplied power for 5 months.

Cons: It only supplied power for 5 months. Started acting up after 3 months, cutting power occasionally. Finally died after 5 months.

Other Thoughts: Was on sale for $90. Still too steep a price for a 5 month lifespan. 5 months of use is maybe worth $30. If you're looking for a 5 month solution for only way too much money, click "add to cart" now!

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.

Please contact our support team to assist you with warranty options.

Phone: 1- 800-575-9885
Email: rma@rosewill.com
Email2: techsupport@rosewill.com

We look forward to hearing from you.

Thanks,
Rosewill Customer Care

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  • Ronald A.
  • 4/28/2014 12:57:55 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggs

Pros: Good psu so far i have had it about a week.

Cons: 1 x 8Pin EPS12V Connector connector is short! be warned i have the thor v2 case it hugs the video card to plug into the motherboard.

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  • Anonymous
  • 4/21/2014 11:14:05 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsGood PSU While it Lasted

Pros: Worked perfectly on the day I got it for about four years until it began to break down.

Cons: A little disappointed it started to breakdown about four years since I got it. I have other brand PSUs such as Antec and Thermaltake which still operate fine 5+ years. The PSU started to breakdown everytime I would turn on my PC, it would make abnormal electrical noises for about a minute and the computer wouldn't boot up correctly. After swapping out for a different PSU, my PC works fine.

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  • Julie J.
  • 3/24/2014 5:35:43 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat PSU - 750W

Pros: - Silent operation
- 135mm Fan
- Cool blue LED

Cons: - Only 80 Plus Bronze
- Light is sometimes annoying at night

Other Thoughts: I purchased this PSU to power my Dogecoin mining rig. Within the rig I'm running pretty standard equipment for a gaming PC, 8 gb RAM, 4.0 ghz AMD CPU, VelociRaptor HDD.

For the mining portion I have an XFX 7950 Black Edition, and an MSi 7870 OC Edition. Both running 100% load nearly 24/7.

After LITERALLY 31 days of purchasing this PSU, it has died. I'm not mad about this at all, the PSU worked perfectly as it should have for the 31 days it did work, and it had totally silent operation, which is awesome. I'm confident that Rosewill can work with me on this matter, as the product is passed Newegg's refund/replacement policy timeframe. I will be asking for a replacement, not a refund because I like this product, and Rosewill is a good brand, that I've had good luck with for many years. I know that sometimes things happen and components go bad quicker than we want, and I'm okay with that. The PSU is worth replacing, and is a good addition to any system.

However, the failure is the reason I've deducted 1 Egg, hopefully understandably.

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  • Justin G.
  • 3/12/2014 8:13:13 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsSolid PSU

Pros: Overall it"s a high quality power supply; With 60 Amps on a single 12v rail and 4x 6+2 pin connectors it can power any single gpu easily with enough extra power to add a second gpu. Ascetics are nice and it stays cool and quiet even when I throw my whole system into full load for an hour.

Cons: Non-modular cables is a big one. The blue led is quite annoying as well.

Other Thoughts: System specs:
A8-3870k 3.5GHz @ 1.5v
Msi r7950 tf 3gd5/oc boost 1150/1250 @1.3v
A55m-HVS
rosewill xtreme rx750w
WD blue 500gb

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Item#: N82E16817182072
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