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Raidmax > 
Item#: N82E16817152052

RAIDMAX Cobra RX-400AF-B 400W ATX 12V v2.3/EPS 12V SLI CrossFire 80 PLUS BRONZE Certified Power Supply

  • ATX 12V v2.3/EPS 12V
  • 80 PLUS BRONZE Certified
  • 110 - 240 V 47 - 63 Hz
  • +3.3V@20A, +5V@20A, +12V@26A, -12V@0.5A ,5VSB@2.5A
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Learn more about the Raidmax RX-400AF-B

Model

Brand
RAIDMAX
Model
RX-400AF-B
Series
Cobra

Spec

Type
ATX 12V v2.3/EPS 12V
Maximum Power
400W
Fans
135 mm Fan with Green Blade
PFC
No
Main Connector
20+4Pin
+12V Rails
Single
PCI-Express Connector
1 x 6+2-Pin
SATA Power Connector
5
SLI
SLI Ready
Haswell Support
Yes
CrossFire
CrossFire Ready
Modular
No
Efficiency
Up to 86.83%
Energy-Efficient
80 PLUS BRONZE Certified
Over Voltage Protection
Yes
Overload Protection
Yes
Input Voltage
110 - 240 V
Input Frequency Range
47 - 63 Hz
Input Current
13A
Output
+3.3V@20A, +5V@20A, +12V@26A, -12V@0.5A ,5VSB@2.5A
MTBF
>100,000 Hours
Approvals
UL, CUL, TUV, FCC, CE
Dimensions
6.0"W x 3.5"H x 6.5"D
Weight
3.82 lbs.

Features

Connectors
1x 20+4-Pin Main Connector
1x 4+4-Pin ATX12V/EPS12V Connector
1 x 6+2-Pin PCI-E Connector
5 x 5-Pin SATA Connector
4 x 4-Pin Peripheral Connector
1 x 4-Pin Floppy Connector
Features
Haswell Ready

Stable voltage regulate DC output quality perfectly

A strong single +12V rail for high-end system heavy load configuration provides stable and highly compatibility

80 plus Bronze certification guarantees more than 85% efficiency at typical loads

The Cobra Series offers complete electric protection by SCP(Short Circuit protection), UVP(Under Voltage protection), OVP(Over Voltage protection) and OPP(Over Power protection)

Compliance with the latest EU ErP Direction

Quick Info

Warranty

  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years


Customer Reviews of the Raidmax RX-400AF-B

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  • Zach P.
  • 7/4/2014 11:12:24 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorked great

Pros: Decent Design, not really loud, worked fine, had all the connections I needed for the PC repair. All around I think this is a nice PS. Connections all fit well,

Cons: None

Other Thoughts: was a replacement for an old power supply that died. This went on a Dualcore AMD processor system with 4gb memory and an older 8800GTS video card. All powered on fine with this one.

Did you find this review helpful? Yes No

  • Jose M.
  • 5/15/2014 6:56:10 PM
  • Tech Level: Low
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsdont buy this power supply is garbage

Pros: none

Cons: it only last 1 month yesterday i was working on my computer and the power supply start making funny sounds and i see sparks and it burn my mobo and my cpu

Manufacturer Response:

Dear Customer,
First we like to thank you for your review.
We have heard your response and forwarded over to our production team in our manufacture factory overseas.
If you have any other questions or concerns, please send a email to rma@raidmax.com for faster respond/service.
We appreciate you choosing Raidmax products.

-Raidmax Support Team

1 out of 5 people found this review helpful. Did you? Yes No

  • Jean A.
  • 5/15/2014 5:26:46 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGood buy.

Pros: -80+ Bronze
-Cool design
-Good price

Cons: None.

Other Thoughts: None.

Did you find this review helpful? Yes No

  • Corey M.
  • 5/10/2014 2:53:31 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsGreat PSU, easy to install

Pros: Easy Installation
Looks Fantastic
Plentiful amounts of connectors, especially Molex.
Cools down CPU very well.

Cons: None I can think of, other than the fact that the unused connectors can be a little bit in the way. Barely worth mentioning.

Other Thoughts: If you're looking for a good ATX power supply that has an ample amount of connectors and great energy efficiency, look no further. 400W may not be enough power for your rig, but it was for mine. The installation of it was easy. The cost was really low for the quality of it. Oh, and in comparison to my old PSU, this has already made a 2-3 degrees Celsius difference in the CPU temperature. Buy this!!!

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

  • jason b.
  • 5/8/2014 11:31:35 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsFan already making loud noise

Pros: The power supply seems stable
Wires are high quality for the price

Cons: Fan is already causing problems and very loud at this point. Could be ball bearings going.

Other Thoughts: Get an extended warranty.

Manufacturer Response:

Dear Customer,
We're sorry that the fan is causing some problems for you.
Please note that this PSU does come with a 2 years warranty.
If you like to request a RMA/replacement, please send a email to rma@raidmax.com for faster respond/service.
We appreciate you choosing Raidmax products.

-Raidmax Support Team

Did you find this review helpful? Yes No

  • Joseph G.
  • 4/22/2014 7:22:11 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsPretty good

Pros: -Great PS for the price, worked as intended

Cons: -Blew a bunch of capacitors about 3 months in.
-Suggesting to buy protection plan on this one -.-

Did you find this review helpful? Yes No

  • Vahan M.
  • 3/26/2014 9:28:49 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat!

Pros: Really quite. The sleeved cables are nice. Its perfect for a simple setup. I have mine in a Lian Li PC-Q07 Mini ITX Case.
The fan is quiet and the unit does not get hot.
Price was great.

Cons: None.

Other Thoughts: I hope it lasts long but I think Raidmax is a good brand. This is my first time.

Did you find this review helpful? Yes No

  • Adam H.
  • 3/8/2014 11:14:33 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsSexy...

Pros: This PSU looks super sharp. Cables are wrapped in a mesh material that looks pretty good. Quiet. Didn't cost much. Works as a PSU should.

Cons: No issues so far.

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

  • Sean E.
  • 3/1/2014 12:44:05 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggscheck rebate instructions

Pros: Seems to be working well so far. Nice green fan.

Cons: Rebate only gave 15 days to post mark. I've had plenty of items take at least that long. Power supply is nothing special.

Other Thoughts: The product is fine, but with those rebate terms, you know they're really trying to avoid paying.

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

  • Matt C.
  • 2/20/2014 4:05:01 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsRAIDMAX Cobra RX-400AF-B

Pros: Whisper quiet. It has all the connections I need. I love the green colored theme.

Cons: None, but it is a good sized PSU. It was pretty tight in my little case, but it fit. Not modular.

Other Thoughts: I bought this to replace my previous Hoover PSU. The sound difference is astounding. This was put in an old HP SR1701 case and it was a tight fit.

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

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Item#: N82E16817152052
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