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SilverStone 500W ATX 12V 2.2 SLI Ready 80 PLUS Certified Active PFC Power Supply ST50EF-CS - Retail

SilverStone 500W ATX 12V 2.2 SLI Ready 80 PLUS Certified Active PFC Power Supply ST50EF-CS - Retail
alaScore 80

24 reviews

Mar, 2018

alaTest has collected and analyzed 24 reviews of SilverStone 500W ATX 12V 2.2 SLI Ready 80 PLUS Certified Active PFC Power Supply ST50EF-CS - Retail. 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.

We analyzed user and expert ratings, product age and more factors. Compared to other Desktops the SilverStone 500W ATX 12V 2.2 SLI Ready 80 PLUS Certified Active PFC Power Supply ST50EF-CS - Retail is awarded an overall alaScore™ of 80/100 = Very good quality.

Review analysis

(Based on 24 reviews)

1 expert reviews

User Reviews  


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Showing 1 - 10 of 24 Show Reviews: in English

Expert review by : Lee Garbutt (aka Robotech) (

SilverStone ST50EF-Plus High-Efficiency Power Supply Review


The Element ST50EF-Plus is the first SilverStone power supply to receive the 80 Plus certification for high efficiency. And thanks to high efficiency, it runs cool and quiet, while delivering the same stable outputs we have come to expect from...

Sep, 2006

Consumer review (

SILVERSTONE ST50EF-Plus 500W ATX 12V 2.2 SLI Ready 80 PLUS Certified Active PFC Power Supply


I'm gonna buy another one for my new computer

I really like this ; It's SUPER quiet, that's why I like it

No one

Sep, 2008

Consumer review (

Good replacement


Replaced a 450W PSU and I liked the look and the cabling of this device. Lots of cables to address whatever you need


Feb, 2008

Consumer review (

Quiet but a little pricey


No problems with it so far. I first missed the 8pin to 4pin converter for the 12V motherboard connection, so for a while I couldn't figure out how to attach it to my pc.

Quiet - has 120mm fan that's whisper quiet. 80+ efficiency also means it won't get as hot so the fan won't have to work so hard. I can't hear it in my pc

Price - a little expensive

Jan, 2008

Consumer review (

No brainer


Previous reviewer mentioned it has only 1 PCI (6 pin) cable. In fact it has two. The specs for this PSU seem to match the minimum required to power the ASUS P5KVM. 500W for a mATX should be more than enough.

I used this for a HTPC build in a Thermaltake Lanbox and mATX ASUS P5KVM MB. Tight fit but doable ; I hardly know the PC is running, so it's quiet so far

None so far

Jan, 2008

Consumer review (

Amazing Power Supply


Over all, this power supply has a few quirks (noted above) but they weren't enough of a deal for me to rate this thing any lower then I did. Very solid power supply and I hope to keep it for many years to come.

Simply amazing powersupply. I am currently running 3 hard drives, overclocked processor, 4GB of RAM, high end graphics card, high end sound card, ATA controller card, 6 120mm high CFM fans and light up LED Christmas tree on it and it doesn't even...

Only has one cable for graphics cards so you either need to get a splitter for cards that require two of them or get a card that only needs one. Not enough 4-pin Molex connectors

Dec, 2007

Consumer review (

Great So Far


Haven't even thought about it till now. That's good.

Works every time


Dec, 2007

Consumer review (

Cable specs not accurate on box or NewEgg site


The rep even agreed that there should be some kind of label that describes the functionality of the 8/4-pin EPS12V/ATX12V connector.

Great looking PSU, nice short cables for micro-ATX case. Efficiency is great. Quiet

The cable specs are actually ; 1 x 20+4pin motherboard connector (300mm) (11.8") ; 1 x 8/4--pin EPS12V/ATX12V connector (300mm)(11.8") ; 2 x 6-pin PCI-E (380mm)(15") ; 2 x SATA power connectors (300mm + 75mm)(11.8"+3") ; 6 x 4-pin IDE power connectors...

Dec, 2007

Consumer review (

Entirely Unusable


This unit was not shipped as described/depicted. It's unusable. Neither newegg nor the vendor will expedite shipping on their missing cable. Now newegg and/or Silverstone can pay to ship it back.

It arrived ; My first bad experience with newegg and they refuse to expedite

It arrived ; Don't believe the descriptions and pictures on newegg's website. I ordered this power supply because it depicts an included 24-pin to 20-pin adapter cable. The unit includes no such cable

Dec, 2007

Consumer review (

Exceptional 500W PSU


It has an 8 pin 12V connector, but came with the necessary 8 to 4 pin adapter for my system. It also has a 24 pin ATX connector, however my unit did NOT come with a 24 to 20 pin adapter. Check your system for compatibility, and buy a 24 to 20 pin...

I've been using the unit 4 months without issue. The unit is very quite and energy efficient; handles power hungry hardware with stability and ease ; Many power supply units advertise maximum power output across multiple 12V rails, but are unable to...

Systems that require 20 pin ATX power may need a separately purchased 24 to 20 pin adapter

Nov, 2007

Product Specifications

Equipped with a new generation of design and components, the Element ST50EF continues SilverStone's stride toward more efficient power supplies. With higher than 80% efficiency across all loading conditions (from 20% to 100%), the ST50EF produces less wasted heat than typical power supplies and allows the included 120mm fan to operate at minimal speeds, ensuring silent operation for nearly all applications. This stable output and efficient characteristics are packed inside an environmentally-friendly casing that is compatible with nearly any ATX enclosures on the market. If strong power for dual core/dual video card processing and silence are the main priorities, the Element st50ef-plus is for you.