Visit our Business Solutions website >>

Rosewill Stallion Series RD400-2-SB - power supply - 400 Watt

Rosewill Stallion Series RD400-2-SB - power supply - 400 Watt
alaScore 83

80 reviews

Sep, 2014

  • No negative mentions yet

alaTest has collected and analyzed 80 reviews from magazines and websites. People really like the reliability and size. The design and usability also get good views.

value for money, usability, design, size, reliability

We analyzed user and expert ratings, product age and more factors. Compared to other Desktops the Rosewill Stallion Series RD400-2-SB - power supply - 400 Watt is awarded an overall alaScore™ of 83/100 = Very good quality.

Review analysis

(Based on 80 reviews)

User Reviews  

Showing 80 review(s)

Expert Reviews User Reviews
Showing 1 - 10 of 80 Show Reviews: in English

Consumer review by:

quiet pony


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

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

no hamster included

Consumer review by:

Rosewill Stallion Series RD400-2SB 400w atx 12v Power Supply


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

Installed fairly quickly ; Powered up instantly

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

Consumer review by:

Rosewill 400w psu


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.

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

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


Consumer review by:

works good


mine is driving a g645, 8gb RAM, 500gb HD, and a HD 7770 very easily.

easy to install ... cables are manageable ... literally took 10 mins to take old one out and plug in new one

was missing mounting screws but I had extras laying around

Consumer review by:

Rosewill Stallion 400 Watt PSU


Newegg's customer service is top notch at least. Stay away from this power supply, because you will have the same problems as I had. The price tag listed just isn't worth it as there are much better power supplies out there and at least you'll get to...


I'm on my 2nd model and it doesn't work whatsoever. I was getting 7.92v on dual 12v rails which is unacceptable on both PSU's and the cost of $14.20 to ship this product back was further killing the supposed value of this PSU

Consumer review by:

Great Power Supply


The power supply works great. The wiring that comes with it is great also for most common computers. I didn't have any issue with power supply. I know it only has one year warranty but for paying $40 dollars its a good deal

I did wish there would be another fan to flow from the back that it will be ok

Consumer review by:



I can't speak for reliability as it's only been on for a couple days.

Works. Braided cables with a length working fine in a fairly large Zalman Z5 case. Was able to route cables behind the MB all the way to the top CPU 4 pin power connector


Consumer review by:

died after 6 months of minimal use


price, combo package

even an affordable power supply should last longer than 6 months

Consumer review by:



Very happy

This is a great powersupply for those of you who are not running a beast of a computer. This puppy will handle most everything needed for an everyday pc or a low to moderate gamer


Consumer review by:

Rosewill RD400-2-SB


Price. Color. Fan size and ventilation

Booted up my computer, but died within 1 minute

Product Specifications

Rosewill's vision is to become the leading brand in computer hardware and peripherals. Rosewill believes that excellence is a standard. By purchasing a Rosewill product you are choosing exceptional value, unrivaled customer service and top quality hardware. PRODUCT FEATURES: Supports ATX 12V v2.2 standard; Supports both Intel and AMD systems; Dual 12V rails provide independent reliable power; 120mm 2 ball-bearing 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; Safety and EMI approval: CSA, UL, TUV, FCC.

Dimensions & Weight



Product Type:Power supply
Subcategory (AG):Power supplies


Packaged Quantity:1
Product Line:Rosewill Stallion Series

Power Device

Form Factor (AG):Internal
Power Provided:400Watt
Power Supply Compatibility:PC/Server
Voltage Required:AC 115/230V

Service & Support

Type:3 years warranty