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Item#: N82E16817182074

Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

  • ATX 12V v2.2
  • 115 / 230 V
  • 120mm fan
IronEgg
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Learn more about the Rosewill RD400-2-SB

Model

Brand
Rosewill
Model
RD400-2-SB
Series
Stallion Series

Spec

Type
ATX 12V v2.2
Maximum Power
400W
Fans
1 x 120mm Fan with Smart Temperature Sensor
PFC
No
Main Connector
20+4Pin
+12V Rails
2
PCI-Express Connector
1 x 6-Pin
SATA Power Connector
4
SLI
No
Modular
No
Power Good Signal
100-500ms
Hold-up Time
> 16ms at Full Load and nominal input voltage
Over Voltage Protection
Yes
Input Voltage
115 / 230 V
Input Frequency Range
50/60 Hz
Input Current
10A @ 115V, 6A @ 230V
Output
+3.3V@20A, +5V@14A, +12V1@14A, +12V2@13A, -12V@0.3A, +5VSB@2.5A
MTBF
100k hours at max. load, normal line and 25 Degrees C
Approvals
UL, CSA, TUV, FCC
Dimensions
5.91" x 5.51" x 3.35"(WxDxH)
Weight
2.1 lbs.

Features

Connectors
1 x Main connector (20+4Pin)
1 x 12V (P4)
1 x 12V (8Pin)
2 x Peripheral
4 x SATA
1 x Floppy
1 x PCI-E
Features
Supports ATX12V v2.2 standard

Supports both Intel and AMD Systems

Dual 12V rails provide independent reliable power

120mm Single Fan with Smart Temperature Sensor

20+4 pin main connector for universal motherboard compatibility

Mesh sleeving on all cables for easier cable routing and better ventilation

Built-in inrush current, over temperature/current/voltage protection circuits

Spec

Energy-Efficient
No

Manufacturer Warranty

Parts
1 year limited
Labor
1 year limited

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the Rosewill RD400-2-SB

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Showing 221 of 221 reviews - Clear Filters

  • joseph s.
  • 9/9/2014 5:14:54 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs1 year later still going strong

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: Still running after a year of use. Very quiet.

Cons: none.

Did you find this review helpful? Yes No

  • Anonymous
  • 9/9/2014 1:34:48 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsquiet pony

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: needed a power supply and this one was on sale. has all the right connections for current motherboards.

protected braided wiring. good looking black color. quiet... did I say quiet. runs cool. solid fit and finish

Cons: no hamster included

Other Thoughts: hope rebate comes through. with newegg and rosewill, it usually does

Did you find this review helpful? Yes No

  • Crystal H.
  • 5/15/2014 6:12:44 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsRosewill Stallion Series RD400-2SB 400w atx 12v Power Supply

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: Installed fairly quickly
Powered up instantly

Cons: No mounting screws included but I had some already, not gonna knock an egg off

Other Thoughts: Seems to be working fairly well, will update if anything changes

Did you find this review helpful? Yes No

  • Nick V.
  • 5/1/2014 11:55:36 AM
  • Tech Level: Average
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWorks well

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: Works well and is decently quiet. No problems. Still going strong after close to 2 years.

Cons: No problems.

Did you find this review helpful? Yes No

  • Garrett M.
  • 3/17/2014 7:28:58 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsYou get what you pay for

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: I got it for $20

Cons: There are no receiving threads for the PSU mounting screws. It literally just sits in my case with no way to mount it to the case.
In other words my case is freeballing my psu.
This is made worse by the first issue, but the connection either in the inlet of the psu or in the cable they shipped it with is nearly non existent. If I bump the cord/psu at all when moving the computer dies due faulty connections in the psu/wire.

Other Thoughts: I can't say I expected better TBH. I bought it for my media PC hooked up to my TV so bumping it isn't too big of a problem as it sits in a corner with a wireless mouse/keyboard connection.
The real problem is that even though I bought a cheap power supply quality shouldn't be a lacking feature due to price, features and capabilities should. It's this business model that makes or breaks some companies like this. Yes you can make something cheap, but if you can make it reliably cheap with lacking better features for premium power supplies then you're doing it right., but to sacrafice quality as a simple "who cares it's a $20 PSU" is not the way to go.

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. Also provide pictures to illustrate the missing threads on the PSU.

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

We look forward to hearing from you.

Thanks,
Rosewill Customer Care

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

  • Juli H.
  • 2/3/2014 9:06:22 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: individually wrapped cables - many connectors - quiet - solid build - easy to install - price - arrived on schedule and in perfect condition

Cons: none

Did you find this review helpful? Yes No

  • Kelly M.
  • 12/29/2013 9:40:40 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsCheap clips, dont buy

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: N/A when giving it a 1 star rating

Cons: I went through 2 of these, and on both the sata clips broke off when trying to connect them to harddrives / DVD drive. With the first one, it broke beyond fixing so I returned to newegg. The second broke off and I thought it was usable so I attempted to super glue it in place, which was a mistake because doing so did nothing, and also ruined the DVD drive I connected it to.
I did not know it ruined the DVD drive until after the 30 day return policy with newegg, so now I cannot return the power supply or DVD drive.
There are 4 sata clips, I needed all 4 to work, since 1 failed, this power supply does not work for me. A second sata clip broke disconnecting this power supply from the remaining sata device.
The clips are cheap, don't waste your time, patients or money on this power supply.

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.

If you are not fully satisfied with our product please contact us to better assist you in resolving your problem.

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

We look forward to hearing from you.

Thanks,
Rosewill Customer Care

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

  • Melinda W.
  • 12/26/2013 12:49:43 PM
  • Tech Level: Average
  • Ownership: less than 1 day

1 out of 5 eggsRosewill 400w psu

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: there arent many but the only ones i can think of are its cheap and they wrapped the cables.

Cons: well, i had this PSU for less than a day it was in my system for about 3-4 hours and i was doing some very very light gaming (minecraft) and it just shutoff and wont boot my system i even let it sit over night and still nothing.

Other Thoughts: DO NOT GET THIS FOR A GAMING RIG. I was dumb to get it for what i needed. i recomend getting 80+ bronze atleast for gaming.

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 us to assist you in testing the PSU to identify defective product and provide 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

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

  • Jonathan W.
  • 12/8/2013 6:59:33 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsbasic, but quality

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: Lots of leads for SATA, has a seperate lead for Molex if you still need it.
Has PCI express 6-pin connector for moderate power video cards, an 8-pin and a 4-pin CPU connectors.
Snakeskin on all of the cables is a plus, not necessary but nice.
Every cable is long enough. for the Mini Micro ATX system it went in, I could see how it would fit an ATX mid tower, but perhaps not an ATX full tower with a bottom mounted PSU to reach up to the disc drive.
I have roughly 40 6 foot power cables, but it came with one anyway.
lightweight, but not in a cheap junk kind of way.
Big fan. helps keep the whole case cool, but especially the PSU.

Cons: I believe the fan is a sleeve bearing, due to how quiet it is. I can't be for sure since I can't open the case up while the user has it.

WARNING: I had the power switch get stuck in the on (I) position for roughly 5 minutes. I was doing some work adding stuff to the MoBo and instead of unplugging it, I just flipped the switch to off, but it wouldn't stay flipped. No matter what I did to flip it off, it wouldn't. Finally, I got it to switch back, but I'm not sure of the quality of the power switch. I just hope it doesn't get stuck off sometime. I did not deduct an egg for it, but it scared me.

Other Thoughts: I will not buy a cheap power supply. I set my requirements to active PFC to elliminate the cheap junk out there. Most of the time I buy Seasonic's 350 watt, or Antec's Earthwatts 400 watt. This does just as well, but I only picked it because I found it on sale. I'd see it still worth full price though.

It is only powering a DVD drive, a hard drive, a 65 Watt processor and a discrete video card. I didn't test it on my kill-a-watt, but I couldn't see how it ever pulls more than 100 watts for the user. He's got lots of room for expantion. I'd like to see more power supplies at lower wattages for more power savings; perhaps a 250 watt 80+gold would be nice to see. I'd spend just as much on a lower watt model if it meant saving energy.

Did you find this review helpful? Yes No

  • Carol B.
  • 12/4/2013 12:10:15 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsMy old reliable

This review is from: Rosewill Stallion Series RD400-2-SB 400W ATX 12V v2.2 Power Supply

Pros: Great price
QUIET fans
Great value
Reliable!

Cons: None whatesoever

Other Thoughts: This PSU is my old reliable. I use it in most of my builds for personal and in the office. Never had I had a bad one out of the box, never have I had them fail down the road, it's a great product. Highly recommend it!

Did you find this review helpful? Yes No

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Item#: N82E16817182074
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