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Silverstone > 
Item#: N82E16817256008

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

  • ATX 12V 2.2
  • 80 PLUS Certified
  • 100 - 240 V 50/60 Hz
  • +3.3@30A, +5V@30A, +12V1@18A, +12V2@18A, -12V@0.5A, +5VSB@3.0A
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The ST50EF-Plus from Silverstone deliver 500W of power to your system so you have plenty of juice for gaming, file-serving or both. The dual +12V rails provide a balanced output. An Active PFC and >80% efficiency ensure minimal power waste which keeps the PSU cool.

It is equipped with dual 6-pin PCIe connectors. There are also 6 SATA connectors for all of your high speed drives. The cables are partially mesh sleeved to increase air flow and to make management easier.

  • newegg ATX12V v2.2 Compatible Compatible with the ATX12V v2.2 standard, the Silverstone ST50EF-Plus power supply provides maximum power stability to drive the latest Intel and AMD processors as well as other system components.
  • newegg 500W Maximum Power A maximum power of 500W delivers safe, reliable output for mainstream computer systems.
  • newegg 80 Plus Certified The 80 PLUS certified power supply provides high power efficiency of at least 80% at any load between 20% and 100%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.
  • newegg Efficient Cooling A 120mm cooling fan plus hexagon cutouts increase overall airflow in the power supply enclosure and helps remove heat from the chassis simultaneously.
  • newegg Dual PCI-E Connectors With two 6-pin PCI-E power connectors, the Silverstone ST50EF-Plus is ideal for building up a SLI or CrossFire gaming system.

Learn more about the Silverstone ST50EF-Plus

Model

Brand
SILVERSTONE
Model
ST50EF-Plus

Spec

Type
ATX 12V 2.2
Maximum Power
500W
Fans
1 x 120mm Industry-leading silent running fan
PFC
Active
Main Connector
24Pin
+12V Rails
2
PCI-Express Connector
2 x 6-Pin
SATA Power Connector
6
SLI
SLI Ready
Modular
No
Efficiency
>80%(at 20%~100% Loading)
Energy-Efficient
80 PLUS Certified
Over Voltage Protection
Yes
Input Voltage
100 - 240 V
Input Frequency Range
50/60 Hz
Input Current
10A @ 115V, 5A @ 230V
Output
+3.3@30A, +5V@30A, +12V1@18A, +12V2@18A, -12V@0.5A, +5VSB@3.0A
MTBF
100,000 hours at 25°C, full load

Features

Connectors
1 x 24 pin motherboard connector (550mm)
1 x 4-pin ATX12V connector (550mm)
2 x 6-pin PCI-E (550mm)
2 x triple SATA power connectors (500mm + 250mm + 250mm)
6 x 4-pin IDE power connector (500mm + 250mm + 150mm)
2 x 4-pin floppy power connector
Features
80 PLUS
RoHS

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 Silverstone ST50EF-Plus

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  • Matthew D.
  • 11/3/2012 7:18:33 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs5 years, still going strong

Pros: This PSU has an aura of quality. Silverstone's attention to detail has yielded a power supply that is still quietly delivering watt after watt of DC power. It has a build quality that's rarely seen in commodity hardware. It's been 5 years (purchased in 2007; peak loads is ~250watts), not a whimper or a hit of a failing fan, capacitor, or any other element in the device. I hope Silverstone's current generation of PSU still possess these qualities.

Cons: Expensive compared to commodity PSUs. At $90 in 2007, it was a considerable price premium over other commonly recommended PSUs.

Did you find this review helpful? Yes No

  • Eric S.
  • 1/21/2010 8:18:40 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsBUY IT

Pros: 80 plus efficency. They also make a Short Cable Edition. That is the one I have. This powersupply gets about 86% efficiency. Great for SFF PC or regular PC. Great Value for your dollar

VERY QUIET, I can't even tell it's on.

Cons: None

Other Thoughts: Wish they made this in a modular short cable version. I'd like to pick and choose the cables I want.

Did you find this review helpful? Yes No

  • Anonymous
  • 9/22/2009 3:17:39 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsServer Grade PSU

Pros: Dependable. Smart features. Sharp design. Quality x10. This is my 2nd "silver" psu. The 1st had been running w/o pause for 3yrs... straight... on a gaming system. Sold that rig. Currently this ones powering a rig with 2hdd's 1 -10krpm/High spd & wattage AMD CPU/Ztherm "windmill-of-a-cpu cooler/2Gig Corsair XMS DDR/3 case fans/2 DVDRW/NVid8800GTS... and it's been running since Mar 08... it's Sept 09. I game daily. Go figure.

Cons: Notta...

Other Thoughts: Not a purchase you'll regret.

Did you find this review helpful? Yes No

  • Matthew B.
  • 7/19/2009 10:41:34 PM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

2 out of 5 eggsFailed after 14 months

Pros: Appears well constructed, ran quietly, cabling is well organized

Cons: It failed on me after 14 months. I used it with zero problems in an always-on HTPC, set to sleep after being idle for some period of time. I always had it plugged into an APC UPS when in use. One day, I went to use it, and noticed that the PC had turned off. I attempted to turn it back on but couldn't. After checking the power cord, etc. I concluded that the power supply had failed. Some testing with a volt-meter seems to have confirmed it.

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  • Kevin P.
  • 4/29/2009 9:02:06 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsA solid choice

Pros: Runs quiet and does it's job. I've been using mine for over a year, and it works great. Still quiet, even with all the cat hair that I keep cleaning out of my case.

Cons: None!

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  • Mark J.
  • 11/17/2008 1:10:25 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Product

Pros: Quite! Runs cool, does what it says, plenty of connections. No issues as of yet

Cons: None

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  • Jonathan W.
  • 11/1/2008 2:41:31 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat Power Supply

Pros: Very good build quality. Lot of connectors of various types. Two 12V rails with a combined 36 amp output! A great value for the money.

Cons: Not a con, but all the extra connectors mean you have to do a lot of cable management.

Did you find this review helpful? Yes No

  • Aaron H.
  • 10/6/2008 10:58:29 AM
  • Tech Level: Somewhat Low
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsmelted wires

Pros: Nice cables, looks good

Cons: After using this for about a month, I noticed that two of my case fans stopped working. When I took a look to see what was going on, I noticed that a bunch of wires inside the power supply were melted all over some of the metal parts inside the power supply casing. The system will still turn on and seems to run fine (aside from my fans), but there's no way I'm going to continue using this with melted wires.

Manufacturer Response:

Thank you very much for purchasing a power supply. Please make sure to contact our US office directly for a replacement if there is a defect. Your model is still under warranty. Below is a link to our contact information:

http://www.silverstonetek.com/contactus.php?area=

Did you find this review helpful? Yes No

  • Daniel B.
  • 9/26/2008 5:27:18 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

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

Cons: No one

Other Thoughts: I'm gonna buy another one for my new computer

Did you find this review helpful? Yes No

  • Anonymous
  • 6/11/2008 4:34:26 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: Plenty of cables, quite heavy unit, ran cool running a C2D system in a mid-tower case at full load, and voltages were well-within specs and stable using a DMM. 80-plus certified for higher efficiency.

Cons: Other than the lack of fully-sleeved cabling, none that I can see.

Other Thoughts: Bought this PSU for a customer's machine. It's currently running an e6600 at 3ghz, an 8800GS, a couple hard drives and several fans without issue. The customer's 12-year old son is happily playing Age of Conan on it now, the customer's happy, and therefore I'm happy. Not as beefy as my Silverstone OP650 PSU, but for the system it's running it doesn't need to be.

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

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Home > 
Computer Hardware > 
Power Supplies > 
Power Supplies > 
Silverstone > 
Item#: N82E16817256008
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