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  • Silverstone Tek 300W SFX Form Factor 12V ATX 300 Power Supply ST30SF
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Silverstone Tek 300W SFX Form Factor 12V ATX 300 Power Supply ST30SF


Price: $50.99 & FREE Shipping. Details
Only 14 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
  • Support standard SFX form factor and ATX via included bracket
  • 300W continuous power output at 50? operating temperature rated for 24/7 operation
  • 80 PLUS Bronze level efficiency (82%~85% efficiency at 20%~100% loading)
  • Class-leading single +12V rail with 22A
  • Intelligent semi-fanless operation
  • Active PFC
  • Silent running 80mm fan with 18dBA minimum
  • Single PCI-E 6pin connector support
2 new from $50.99

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Frequently Bought Together

Silverstone Tek 300W SFX Form Factor 12V ATX 300 Power Supply ST30SF + Silverstone Tek Plastic/SECC Mini-ITX Computer Case with 2x USB 3.0 Front Ports SFF Cases, Black SG05BB-LITE
Price for both: $90.98

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Product Details

  • Product Dimensions: 11 x 7 x 3 inches
  • Shipping Weight: 3.1 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B00FA4KP8S
  • Item model number: ST30SF
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (14 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: September 17, 2013

Product Description

As the standards bearer of SFF (small form factor) cases and SFX PSUs, SilverStone has released a reference power supply design for the masses in the ST30SF, a 300W SFX unit designed with high affordability and great performance. It has 80 PLUS Bronze level efficiency and a semi-fanless design that raises the efficiency level for this wattage class and allows for unprecedented low noise operation in low loading conditions. To enable users to easily take advantage of this excellent SFX power supply, an adapter is included to convert ST30SF to mount in any ATX case in addition to ones that fit only SFX. For SFF users, the ST30SF is an excellent, well-rounded power supply for any DIY desktop computer.

Customer Reviews

Very quiet PS so far.
J Morgan
Also comes with SFX to ATX size bracket.
Bacon
Has smart fan control.
Bruce B.

Most Helpful Customer Reviews

8 of 8 people found the following review helpful By J. Kolberg on November 13, 2013
Verified Purchase
I installed this PSU in my home theater machine and it fit perfectly. I used the included adapter plate to mount this in a full size ATX case. My configuration actually has very low power requirements and it is difficult to find lower wattage PSU that have 80+ ratings. The only problem I found was the wires for the 24-pin motherboard connector are only 12 inches long. That is probably fine for the mini ATX or smaller motherboards, but my full size ATX board had the connections in the farthest possible corner from the PSU and it was out of reach. Not even a near miss. However, it was easily corrected with at StarTech 24 pin power extension cable. In a mini-ATX, this would get five stars, but since they give you a mounting adapter for ATX, it should have cables long enough to reach all ATX components.
Compared to the non 80+ PSU I replaced, this one is silent and the Kill-A-Watt meter readings are all significantly lower. It reads 0W in standby mode (down from 5) and 40W with the PC running nothing (down from 48) Video playback & encoding went from 90W to 70W. Only change was this power supply.
The product is nicely packaged and has matching black mounting hardware, including regular screws or hand screws for tool-free cases. They tossed in a few zip ties and a Velcro strap. The booklet is extremely detailed and spec's the voltage for every color wire to every connector in five or six languages. This was listed as temporarily out of stock when I placed the order, but I think it was only a day or two before I got the email that it had shipped.
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1 of 1 people found the following review helpful By Hector Alcala on January 17, 2014
Verified Purchase
To start, I was forced to buy this unit since I was unable to find another SFX Form Factor Power Supply with the amount of watts required in my setup. The convenience of having such amount of power in a smaller unit comes with a price but I think it is worth. The performance is great, although I had to return the first unit due to a significant buzz sound that is was producing and since I was using it on my HTPC located at the living room, it was very noticeable. The second unit seems to be working ok. What I like the most is that the fans are always off unless my CPU starts requiring more power, this is a great feature for HTPCs out there and other type of setups that require a silent yet powerful Power Supply.
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1 of 1 people found the following review helpful By J Morgan on November 21, 2013
Verified Purchase
Very quiet PS so far. The cables aren't excessively long although long enough, which helps in a mini-ITX build. No complaints thus far.
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Verified Purchase
I chose this for my compact Silverstone NAS which requires a smaller SFX supply, and it was a good decision. A priority for me is a quiet supply and this one delivers by using a load controlled fan that hasn't spun at all on my system yet. Admittedly, its a new build and I've only done some computationally light work so far but since this system will be used primarily as a HTPC, I don't think it's going to present any electrical of consequence most of the time so I don't expect the fan to spin much. This supply has some nice features as well such as a PCIe cable for video cards (not all SFX supplies include this) plus an ATX adapter plate for use in larger cases. Another small, but nice benefit are the thumb screws in addition the to normal PS mount screws that can be used to secure side panels on most cases. As you might expect in a moderately sized supply like this it doesn't have a ton of molex or SATA connectors but it should be enough for the smaller systems this type of supply would be typically used with.
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1 of 1 people found the following review helpful By Amazon Customer on September 20, 2014
Verified Purchase
Installed in WHS2011 server. Quiet, efficient.
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Verified Purchase
I got it for my HTPC and it works 100% the way it was suppose to be. It works fine.
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By C. Wu on February 7, 2014
Verified Purchase
I like this power supply because it is very quite.
I bought this power supply with the Silverstone MINI-ITX case because it is SFX Form Factor.
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