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Corsair TX850 850W ATX 12V Single Rail 70A 24PIN ATX Power Supply Active PFC 80PLUS Bronze

Corsair TX850 850W ATX 12V Single Rail 70A 24PIN ATX Power Supply Active PFC 80PLUS Bronze - 1
Actual product may not be exactly as shown.
Corsair TX850 850W ATX 12V Single Rail 70A 24PIN ATX Power Supply Active PFC 80PLUS Bronze - 58383_l.jpg Customer Photos (0)
Reg. Price: $159.98  CAD
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   Shipping Weight:   7 lbs
   Part #: CP-9020043-NA
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Features    [ Edit | History ]

Now with fanless mode at low loads, the quieter TX series is legendary for being reliable, efficient, and using high-quality components. Guaranteed to deliver continuous output at 50C temp rating, and with a fantastic 5-year warranty, the TX series offers quiet, reliable operation.

One of our best sellers since 2007, the TX series redefined reliability for the industry. Featuring 80 PLUS® Bronze efficiency, the TX series uses less power and produces less heat. Each PSU also includes long, pre-sleeved cables, perfect for modern cases with the PSU on bottom.

Quick Specs:
Package Contents
  • TX850 ATX12V & EPS12V Power Supply
  • Accessory Bag
  • Mounting Hardware
  • Cable Ties
  • Case Badge
  • Installation Guide
Efficiency 85%
Input Voltage 110 V AC 220 V AC
Output Power 850 W
Limited Warranty 5 Year
Output Voltage 3.3 V DC @ 30 A 5 V DC @ 30 A 12 V DC @ 70 A -12 V DC @ 800 mA 5 V DC @ 3 A
Weight (Approximate) 7.20 lb
Form Factor Internal
Country of Origin China
Height 3.4"
Width 5.9"
Depth 6.3"
Number of Fans 1
Green Compliant Yes
Green Compliance Certificate/Authority 80 Plus Bronze ErP
Number of +12V Rails 1
Modular No

Specifications    [ Edit | History ]
General Information  
     Brand Name: Corsair
     Manufacturer: Corsair
     Manufacturer Part Number: CP-9020043-NA
     Manufacturer Website Address:
     Product Model: TX850
     Product Name: TX850 ATX12V & EPS12V Power Supply
     Product Series: TX
     Product Type: ATX12V & EPS12V Power Supply
     Plug/Connector: On/Off Switch
     Receptacles: 1 x ATX Motherboard
2 x ATX12V Motherboard
4 x PCI-E
8 x Serial ATA
8 x 4-pin LP4 Peripheral Device
2 x 4-pin SP4 Floppy Drive
     Country of Origin: China
     Green Compliance Certificate/Authority: 80 Plus Bronze
     Green Compliant: Yes
     Package Contents:
  • TX850 ATX12V & EPS12V Power Supply
  • Accessory Bag
  • Mounting Hardware
  • Cable Ties
  • Case Badge
  • Installation Guide

Physical Characteristics  
     Depth: 6.3" (160 mm)
     Form Factor: Internal
     Height: 3.4" (86.4 mm)
     Weight (Approximate): 3.27 kg
     Width: 5.9" (149.9 mm)
Power Description  
     Input Current: 12 A @ 110V
4 A @ 220V
     Input Voltage: 110 V AC
220 V AC
     Input Voltage Range: 90 V AC to 264 V AC
     Input Voltage Type: AC
     Number of +12V Rails: 1
     Output Power: 850 W
     Output Voltage: 3.3 V DC @ 30 A
5 V DC @ 30 A
12 V DC @ 70 A
-12 V DC @ 800 mA
5 V DC @ 3 A
     MTBF: 100000 Hour
Technical Information  
     Efficiency: 85%
     Modular: No
     Number of Fans: 1
     Power Factor Correction (PFC): Active
     Protection Type: Over Voltage
Over Power
Under Voltage
Short Circuit
Over Current
     Limited Warranty: 5 Year

Corsair CP-9020043-NA Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Corsair CP-9020043-NA reviews.
Experience: 5 Years
Lasts an extremely long time.
Won't die so I can replace it with a corsair modular
I bought one of these one year. I think it was 2002-2005 sometime. Anyways the same ones been with me now for 3 builds. A true hero PSU. Never any problem with it ever.

Experience: 17 Months
-VERY good PSU
-tiniest of voltage ripples
-plenty of power
-not modular
This PSU is a monster! I check multiple expert reviews online before purchasing a product, and this one offers best bang for buck! It can take a CrossFire/SLI and an FX-8350 overclocked without sweating, best load characteristics at this price, period. But it's not modular, and there's a lot of cables around. Recommended for gaming rigs and overclocking, you can probably go for something smaller if you're not doing any of that.

Experience: 6 Months
80+ Bronze
Not Modular
This power supply has SLi compatibility. Great if you need pretty much every wire on the PSU. If not, just have a good case with space for wire management and it'll be perfect.

Experience: 10 Days
 Verified Owner
good price, easy to install
None yet
Works perfectly with my P8P67,I5 2500K, and my EVGAGTX570,it is really easy to connect with all the other cards

Experience: 1 Weeks
 Verified Owner
+ Quality
+ WattAMP
+ Warranty
+ Price
- Not modular
Got every cable you need, This PSU look and feel Really Solid the fan on it is pretty quiet, Ton of room for SLICrossfire oc with devices I really recommand this PSU great PRICE!

Experience: 1 Days
Great price at $90 for a great PSU
if not on sale, quite expensive
Very good PSU, one of the best. Will give 5 stars if only regular price at $90.

Experience: 1 Months
 Verified Owner
Works fine.
Not modular, but you know that already.
I got this power supply for 120 dollars. It was meant for a planned gtx 560ti SLI with overclock on them and an overclock on my i5-2500k CPU. It should be slightly more than enough.

The even better part is once the newer nvidia cards come out next year, they will have a better power usage to performance ratio. So i can probably SLI a couple of those if I wanted to.

This model is also the newer version of the original corsair tx850w. This one is version 2. I don't know what they made better, but its nice to know it will still be good for a few more years since its the newest version out right now.

Experience: 45 Days
Good looking, enought power's power supply
main cable a little short.
Bourght it for my first built computer. wasn't sure how big I need, always go for big, got good choice, over my need, the 4 pin mother board power a little too short to hide for my DF-35, the cable is reachable, have to buy a extendsion for it, not only length it also convert it to 8 pin. now I can organize my cable nicely.

Experience: 4 Weeks
price, performance, quality.
For my recent Pro build, i got this baby, matching it with a gtx570oc and 950oc running on a MSI BigBang, Hi OC no problem, it took the oc without flinching.
Hi-Quality product from a hi-quality company.
Hi Recomendations to gamers as well.

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Messages about Corsair TX850 850W ATX 12V Single Rail 70A 24PIN ATX Power Supply Active PFC 80PLUS Bronze

power supplies in 5th wheels, trailers etc. (Gerrit_V- Oct 11, 11, 1 Replies) Read this message

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Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.
Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

Comment: Corsair is well known for producing some of the best PC power supplies on the market today and their new TX750 V2 and TX850 V2 power supplies continue that trend at an affordable price. Both TX V2 power supplies delivered clean DC outputs, with good efficiency and very good voltage regulation. Bot
Posted by: Andrew_S @04/06/11
Comment: Performance is solid in all areas and we like the attention to detail. If you can live with a non modular design this is one of the best power supplies we have tested.
Posted by: Ken_O @03/11/11
Comment: Once again, Corsair's gone back to the drawing board. Once again, they've come up with something fantastic and worthy of our dollars. I'll just have to settle for recommending an excellent power supply. Well done, Corsair.
Posted by: Ken_O @03/11/11
Comment: "As far as bronze certified power supplies go, the TX V2 range from Corsair is the best we have tested to date."
Posted by: lef @02/27/11
Submit a review link   |   Latest 30 reviews
Product Warranty
First 30 days limited warranty through The remainder of the 3 year warranty is provided directly by the manufacturer.

Corsair's DRAM memory modules all carry a lifetime warranty. The Flash Voyager, Flash ReadOut, TurboFlash, Flash Survivor and Mini Flash products all have a warranty for the expected normal life of the product (10 years). The Flash Padlock has a warranty of 3 years. The HX, TX, and VX Series of Power Supplies have a 5 year warranty, and Liquid Cooling products carry a one year warranty. In general, this means Corsair products are guaranteed to operate, as specified by their datasheet, and in the operating environment for which they were intended, for the life of the product or the extent of the warranty.

For additional information and technical assitance, please visit Corsair Memory's support site at:

Corsair Technical Support

Phone:  1-800-205-7657

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While uses all reasonable efforts to include accurate and up-to-date information on the Site, makes no warranties or representations as to the Site's accuracy. assumes no liability or responsibility for any errors or omissions in the content on the Site. warrants product(s) to be in good working condition and free from defects in material and workmanship for a period of one (1) year for OEM packages, and for thirty (30) days for RETAIL packages, from the original Invoice date unless otherwise restricted below or by the manufacturer's own warranty policy. Defective returns and warranty service will be replaced, exchanged or repaired at's sole discretion, and based on vendor's policy.

NON-DEFECTIVE merchandise returns may be accepted on some items ONLY within 15 days of the Invoice date, at's discretion. All NON-DEFECTIVE returns are subject to a 15% restocking fee. No refunds will be issued for blank media, digital cameras (and accessories), opened software, printers, printer supplies, paper, projectors (and accessories), appliances, handhelds, PDAs, notebook computers, special order computers and special order items.

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