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alaScore 81

16 reviews

Mar, 2018

  • Negative

alaTest has collected and analyzed 16 reviews of SILVERSTONE ST400. The average rating for this product is 4.8/5, compared to an average rating of 4.2/5 for other Desktops for all reviews. Reviewers are impressed by the reliability.


We analyzed user and expert ratings, product age and more factors. Compared to other Desktops the SILVERSTONE ST400 is awarded an overall alaScore™ of 81/100 = Very good quality.

Review analysis

(Based on 16 reviews)

User Reviews  

Showing 16 review(s)

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Showing 1 - 10 of 16 Show Reviews: in English

Consumer review (

Died Today


Arrival Date was: 12/30/2009 This means the unit has been running for 3 years and 6 months. 30k hours when running full time, only 30% of what was promissed. (100k hours)

Great PSU while it lasted ; Provided a stable flow of current and has been placed in many different units ; I used this as my test PSU for quite a lot of builds ; Could power a HD 4850

Only 70% efficient

Jul, 2013

Consumer review (

A little misleading, but a great power supply


Silverstone LC-17 HTPC case Silverstone Strider 400 PSU Gigabyte GA-MA-78GPM-DS2H Mobo AMD BE-2400 Dual Core CPU 2x1 GB DDR2 800 OCZ Memory LG Bluray Drive Vista Ultimate 64-bit Loudest thing in the case, the bluray drive...every component can be...

400W of power ; Very quiet (at lower power levels) ; High MTBF ; Long leads (works well in my HTPC case)

Cabling is not modular, and only some are wrapped ; Noise level advertised is at very low wattage, at close to or near PSU capacity, sound according to packaging is almost 38 ; 1 year warranty is kind of lame, shouldn't need it though

Sep, 2008

Consumer review (

SILVERSTONE ST400 400W ATX 12V 2.2 Power Supply


The voltage switch was set to 230v which I thought was odd, no problem though.

This thing has a nice heft to it, I've read that means quality. Some, not all, of the wire bundles have a mesh covering so that was a nice surprise. Nice and quiet. Each SATA wire(s) has 2 SATA connectors (4 SATA power connectors overall), which I...

Only for Newegg's $10.87 shipping; seemed a bit steep

Sep, 2008

Consumer review (



I would use this on all of my rigs from my top end gaming to low end word processors. Powers my 8800GS/AMD x2 with no problems and can handle much more.

18 amps per rail (2) ; Powers my 8800GS rig no hiccups ; Amazing price

Doesn't power my home

Sep, 2008

Consumer review (

Great PSU


If you need a PSU in the 400 watt range this is the one to get. The power supply is NOT where you want to save money in your build - DON'T get those 25-30 dollar junkers, get this one. MTBF rating is 100,000 hours - that's good stuff.

Just adding my 2 cents to the rave reviews here. Specs are great, long leads, quiet as can be. This one is a great "bang for the buck" power supply

Um, lots of wires to tie up if you are a cable management freak like I am

Sep, 2008

Consumer review (

Good product!


I have used this for about 8 months and have had no problems with it


Aug, 2008

Consumer review (

Quality PSU


For my system, this provides plenty of power. Others may need more wattage. Enough amps on the 12V rails to power a single 8800GT. My Rig: Core 2 Duo E7200 (OC'ed), 2 x 1 GB G.SKill RAM, SATA Optical Drive, 2 IDE HD's, eVGA 8800GS (OC'ed), 3 case fans.

I needed a power supply that could handle my new 8800GS. This PSU handles it


Aug, 2008

Consumer review (

400W seems to be enough


Works. I was afraid that 400W wouldn't cut the mustard with a q9450, two hard drives, a GeForce 8800GT graphics card and about a 20%overclock. Good news! It does. It cuts the mustard well :). Thanks Tomshardware for recommending it

It costs more than the $20 power supplies that I was using previously. They failed every 6-12 months or so though. I'll update this review if it fails in the same timeframe

Jul, 2008

Consumer review (

Excellent Value


A worthwhile purchase for an enthusiast builder on a budget, or even for someone without much of a budget.

Plenty of juice for all but the absolute most demanding set ups (I mean SLI, Crossfire + Quad Core CPU, etc). Has a good heft to it, definitely not cheaply made. Tons of cables, plenty long for even large cases. Reasonably quiet

Not totally silent, but I'd be lying if I said that you could find better in this price range or for even fifty bucks more

Apr, 2008

Consumer review (

SilverStone Power Supply


Most standard computer that you buy from a retailer have weak power supplies, usually around 250 or 300 watts at best. This is a great upgrade from standard power supply units, it's made by one of the most respected companies in the business. Although...

This unit is great. It does what it says, I received it pretty quick and it installed without any problems. There are plenty of connections for both SATA and IDE devices. It's powerful and quiet, and best of all it comes with a huge cooling fan. This...

The only con, if you can call it that is the length of the cables. They are extremely long, you will need some cable ties to keep up with the extra cables. I have used cable ties to keep some air flow circulation in my case. This unit is great for...

Apr, 2008

Product Specifications

The ST400, as part of the Strider series, is a power supply with ideal balance of quietness and performance. This is made possible thanks to the use of a single 120mm fan that varies speed automatically to keep up with system's every demand. High gloss surface coated with zinc ensures that this model will continue to look like new for years. This endurance is needed as the components inside the power supplies are built to last.

Dimensions & Weight



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


Manufacturer:SilverStone Technology
Packaged Quantity:1
Product Line:SilverStone Strider Series

Power Device

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