Skip to: | - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message. - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

Sign up today for a 30-day free trial of Newegg Premier
  • Wish List
  • Feedback
  • Help
Search all
Home > 
Computer Hardware > 
Power Supplies > 
Power Supplies > 
SeaSonic USA > 
Item#: N82E16817151100

Seasonic SS-850HT 850W ATX12V v2.31,EPS12V v2.92 80Plus Silver Certified, Active PFC Power Supply - OEM

  • ATX12V v2.31 / EPS 12V v2.92
  • 80 PLUS SILVER Certified
ICON Loading...

Learn more about the SeaSonic USA SS-850HT Silver


SS-850HT Silver


ATX12V v2.31 / EPS 12V v2.92
Maximum Power
Main Connector
+12V Rails
PCI-Express Connector
2 x 6-Pin, 2 x 6+2-Pin
Haswell Support
> 85%
80 PLUS SILVER Certified
Over Voltage Protection
Input Frequency Range
47 - 63 Hz
Input Current
100A max
+3.3V@24A, +5V@30A, +12V@70A, -12V@0.8A, +5VSB@3A
>100,000 Hours
5.90" x 6.30" x 3.40" (lL x W x H)


1 x Main connector (20+4Pin)
1 x 4+4 Pin ATX 12V
1 x 8-Pin EPS 12V
4 x PCI-E
Comply with the latest Intel ATX12V & EPS12V Specification

Support the latest Intel & AMD Socket

PCI Express & Serial ATA ready

DC to DC converter design

High efficiency and reliability

Low ripple & noise

Super low noise fan control

Short circuit protection on all outputs

Over power protection

100% hi-pot test

100% burn in, high temperature cycled on/off


SeaSonic USA
SS-850HT Silver
Model Name
SS-850HT Silver

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 SeaSonic USA SS-850HT Silver

Do you own this product? Write a Review

ICON Loading...

Filter Results

  • Juan R.
  • 1/17/2014 8:09:43 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsAn interesting power supply if you have it

Pros: As Seasonic was known to use special methods to ensure proper voltage regulation as noted by JonnyGuru's review of the modular version of this PSU it's very rock solid and supports Haswell lower power states even to C7. A simple websearch will show how PSU like this were made to support it. Very nice performance that will last you years on end. Don't let the Silver rating fool you. If you are lucky to have "cheaped" out on this power supply you definitely have a gem in hand ; bar the hard to cable manage cables...

Cons: Non-modular cables are obviously messy. Hard as nails to make them look nice. It's also discontinued which is obviously a minus. Some might also consider the floppy connector a minus as well.

Did you find this review helpful? Yes No

  • Terry L.
  • 2/1/2013 5:34:37 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year

5 out of 5 eggs

Pros: Reliable. Solid as rocks! It has been running for 4 years without any problems.

Cons: Not a module PSU. Only 80 Plus Silver, not 80 Plus Gold.

Other Thoughts: I bought mine in 09 and have been running it since then. Back in 09, it had black color instead of white.
My rig
I7 965 @ 3.8g
12g ddr3 1600
3x 1t harddrives 1x 128g m4 ssd
amd 5870 crossfire at first, then changed to 580sli 2 years ago.

Did you find this review helpful? Yes No

  • Maxime F.
  • 11/28/2012 7:55:50 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsReliable PSU

Pros: - Reliable
- Good quality build
- Price

Cons: Some people pay more money for the same PSU sold under different name (ex : Antec TruePower)

Other Thoughts: Been running this PSU for about 2 years now.

My system run 24/7, I restart it about every 10 or 15 days.

My system was shutdown during 3 months this summer.

Never had a problem, always work great.

SeaSonic are good quality PSU, they are also sold under others compagny, Antec TruePower for exemple are in fact SeaSonic PSU.

At my job, we have about 500 computers running with this PSU, very little failure rate compare to other PSU (stay away from FSP Group PSU).

Did you find this review helpful? Yes No

  • Andrew K.
  • 9/7/2012 3:43:01 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsGood

Pros: Delivers power, works. What else can you say.

Cons: Really wish they would have included a power cable. That's why 4 stars.

2 out of 3 people found this review helpful. Did you? Yes No

  • David M.
  • 5/29/2012 8:55:25 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsSolid Power

Pros: Has powered my computer just fine for 4 months now. Apparently this is the OEM version of the SeaSonic M12D 850W which is more expensive. All of the benchmarks and reviews I have read suggest that this is a nice and stable power supply. And btw, it's a Seasonic! I haven't ran into any issues so far. (see build below).

Cons: Not modular, and there's a whole lot of cable coming out of this thing. If you have a case that can accommodate a lot of cords, go for it. My HAF 922 had plenty of room behind the mobo to hide cables, so it wasn't an issue for me.

Other Thoughts: If you are worried about the whole 1 or 2 12V rail thing, don't be. From what I've read the two "rails" combine into one rail basically. Even if there are 2 rails, what is going to need more than 40 amps? Here is my build:
2500K @4.4GHz
2 GTX 560's in SLI overclocked
4 sticks of 4GB DDR3 1600 RAM
1 HDD & 1 SSD
6 fans
1 DVD burner
1 card reader

It powers all of that at full load no problem. This is the sweet spot for an intermediate SLI system. If you are using GTX 580s or something like that, you might need to have more watts.

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

  • Daniel H.
  • 4/16/2012 11:20:33 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

5 out of 5 eggsGood power supply.

Pros: 80+ Silver certified
Stable voltages.
Powers all my stuff with ease.

Cons: Doesn't look great.

Other Thoughts: I got way too huge of a PSU for my build.

i5 2500k, Stock cooler (for now)
Galaxy GTX 570
8gb Kingston ram (dual channel)
NZXT Phantom
1tb 7200 RPM Seagate Barracuda
120gb Intel Cherryville SSD

Did you find this review helpful? Yes No

  • David C.
  • 1/10/2012 4:34:46 AM
  • Tech Level: High
  • Ownership: less than 1 day

4 out of 5 eggsONE rail

Pros: Right after I wrote my review, I was able to find a review of the model M12D that this power supply is based on. Jonnyguru already tore this one apart. Just as I suspected by reading the label, this is a single +12V rail design, and there are two 40A current limiters running off of the ONE +12V rail. That seemed to me to be what the label was saying, and the label is correct.

Cons: I agree the label is misleading.

Other Thoughts: The label really should be changed to reflect this, but this power supply is a single rail design. So don't be bashing this thing for having dual rails. It only has one.

0 out of 3 people found this review helpful. Did you? Yes No

  • David C.
  • 1/8/2012 4:55:41 AM
  • Tech Level: High
  • Ownership: less than 1 day

4 out of 5 eggsRails

Pros: There is some question in the reviews about the rails. The sticker does seem to indicate two rails. But the sticker also seems to indicate ONE +12V voltage rail. If this was a true dual-rail design, then there would be 960W available at +12V. As the total wattage available at +12V is lower than 960W, that indicates to me that it is a SINGLE +12V rail design with a couple of 40W current limiters.

There are very few power supplies on the market that actually have multiple +12V rails. For every 100 that claim to have multiple +12V rails, probably one or two of them actually do. One such is the Sirtec built OCZ Modxstream 500W, recently discontinued.

Could this Seasonic 850W HT Silver unit have multiple +12V rails? We won't know until jonnyguru or pcper or hardocp or the like disassembles one to find out exactly what is connected, and WHERE.
But judging by the label (and Seasonic tends to have accurate labels on their own builds) I'd say this is a single +12V rail.

Cons: Label is misleading though. It seems to indicate both a dual +12V rail design, and a single +12V rail design. So who knows?
Nobody has really reviewed it yet, that I can find.

Other Thoughts: jonnyguru needs to chime in on this one!!!

0 out of 2 people found this review helpful. Did you? Yes No

  • Christopher M.
  • 11/7/2011 3:44:55 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggs+

Pros: Stable voltages, very quiet, long cables, most connectors are labeled.

Cons: 3x SATA connectors seem to be assembled backwards and you will need to do quite a bit of twisting to get them at the right angle, nothing major though.

Other Thoughts: Good quality for the price, no real complaints.

0 out of 2 people found this review helpful. Did you? Yes No

  • Bridgett H.
  • 10/14/2011 6:59:50 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat value

Pros: All cables are lengthy, yes i have extra to spare, but that is better than the cable not being long enough IMO.
Amazing value when you look at the 12 volt amps you are getting for your money.
The cables are sleeved.

Cons: Not much to complain about on the PSU itself.
Newegg does have it listed as a single rail PSU. They do have a pic of the sticker that clearly shows it has 2 40 amp 12v rails though, so I knew what i was getting and won't take off an egg. Would be nice to see them correct this though.

Other Thoughts: Seasonic is a great company, Many of Corsair's PSU's have Seasonic internals. This runs my GTX 470 SLI No problem.

Did you find this review helpful? Yes No

ICON Loading...
Are you an E-Blast Insider? Subscribe Newegg e-Blast
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.

Home > 
Computer Hardware > 
Power Supplies > 
Power Supplies > 
SeaSonic USA > 
Item#: N82E16817151100
Shop by Region: United States | Canada | China
VeriSign Click for the BBB Business Review of this Computers - Supplies & Parts in Whittier CAThis site protected by Trustwave's Trusted Commerce program Inc500
Policy & Agreement | Privacy Policy  © 2000-2014 Newegg Inc.  All rights reserved.
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.