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Item#: N82E16817256063

SILVERSTONE ST45SF 450W SFX12V 80 PLUS BRONZE Certified Active PFC Power Supply

  • SFX12V
  • 80 PLUS BRONZE Certified
  • 90 - 265V
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After successfully revolutionizing both HTPC and SFF market segments with innovative chassis designs, SilverStone engineers continue their push for advancement in these categories by releasing a true upgrade-worthy small form factor power supply, the ST45SF. This SFX unit is compatible not only with chassis that use SFX power supplies but also in smaller ATX chassis with the included adapter bracket.

Despite its small size, the ST45SF has features that one would expect from an elite ATX power supply such as 80 PLUS Bronze level of efficiency, temperature controlled fan, 50-degree temperature rating, and reliability for 24/7 operation. Enthusiasts oriented features are also present with single +12V rail and 8pin/6pin PCI-E connectors to fully support multi-GPU systems. For SFF users and for SilverStone, the ST45SF is more than just an upgrade; it is an important milestone for the DIY desktop computer.

  • newegg 80 PLUS Bronze Certified The 80 PLUS Bronze certified power supply provides high power efficiency of at least 82% 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 Compatible with SFX or ATX Chassis Designed to fit in SFX computer cases, the SilverStone ST45SF also includes a SFX to ATX bracket for use in ATX cases.
  • newegg 450W Continuous Power with Single Strong +12V Rail The SilverStone ST45SF delivers 450W continuous power output at 50-degrees operating temperature rated for 24/7 operation. Powerful single +12V rail at up to 36A design ensures the maximum provision of 12V power to energy-hungry CPU and VGA card perfect for future high-end component upgrades or overclocking.
  • newegg 80mm Silent Fan Built-in 80mm fan provides excellent airflow to dissipate heat in the power supply enclosure while running quietly with minimum 18dBA noise level.

Learn more about the Silverstone ST45SF

Model

Brand
SILVERSTONE
Model
ST45SF

Spec

Type
SFX12V
Maximum Power
450W
Fans
1 x 80mm silent fan
PFC
Active
Main Connector
24Pin
+12V Rails
Single
PCI-Express Connector
2 x 6-Pin, 1 x 6+2-Pin
SATA Power Connector
3
Efficiency
82%~85%
Energy-Efficient
80 PLUS BRONZE Certified
Over Voltage Protection
Yes
Input Voltage
90 - 265V
Input Frequency Range
47 - 63 Hz
MTBF
>100,000 Hours
Dimensions
4.92" x 2.5" x 3.94"
Weight
2.2 lbs.

Features

Features
Support standard SFX form factor and ATX via included bracket
Class-leading single +12V rail with 36A
Silent running 80mm fan with 18dBA minimum

Manufacturer Warranty

Parts
3 years limited
Labor
3 years limited

Quick Info

Warranty

  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years


Customer Reviews of the Silverstone ST45SF

Do you own this product? Write a Review

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  • N/A
  • 1/18/2013 3:56:24 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week

4 out of 5 eggsGreat, Except 20-24 Pin 2 Short

Pros: Small Form Fact, Just enough Connectors for HTPC with Powerful Graphics Card

Cons: Silverstone should at least make the 20-24 Pin Cable as long as the others, So it will reach across the Matching Silverstone Milo ML03B Case i Purchased.

Other Thoughts: I purchased the Silverstone Milo ML03B HTPC Case and purchased this PSU figuring it would be able to fit properly, i had to turn the PSU Upside down, so the 20-24 Pin MB Cable would reach to the other side of my Motherboard ASRock A75M-ITX FM1 AMD. Nice and quiet, just enough cables for a HTPC Setup.....
Love this PSU except for the fact had to turn it Upside Down.
Silverstone should at least make the 20-24 Pin Cable as long as the others...
Snowman

Did you find this review helpful? Yes No

  • scorchedterra
  • 1/10/2013 6:16:23 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsnice replacement

Pros: can power a 2600K, Nvidia 460, SSD and 3TB drive. Still works a year on!

Cons: cables are not modular so you will end up tucking away the extra cables which can make a SFF build look cluttered

Other Thoughts: I purchased this PSU as a replacement of the 300w in the silverstone SG05. I have had no troubles with in and am amazed how much power it can deliver in such a small form factor.

Did you find this review helpful? Yes No

  • Bob
  • 9/13/2012 6:00:55 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

4 out of 5 eggsMy only choice...

Pros: • Definitely isn't broken.
• Is pretty tiny, a necessary attribute for a mini-ITX build.
• Delivers as much power as I need.

Cons: • FAN NOT SILENT, this is definitely the loudest fan in my build. My Intel stock heatsink is quieter, my EVGA 570 heatsink is quieter (but does emit a high pitched whine...), this PSU is definitely not silent.

Other Thoughts: This came with my Silverstone m-ITX case, which I bought for about $130 IIRC. Cables are far too long, but this can't really be a con.

Did you find this review helpful? Yes No

  • N/A
  • 9/2/2012 10:00:56 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsBest in its class

Pros: - Probably the best SFX psu on the market
- Strong 12v rail, allows for high end cards like the gtx series or radeon HD series
- Can be converted to ATX (not sure why you would want to)

Cons: None

Other Thoughts: Most ATX 450w psu's won't be able to handle what this can. Pretty much your only option when building a mini-itx gaming rig.

Did you find this review helpful? Yes No

  • N/A
  • 7/1/2012 10:53:40 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsBest power supply for Lian Li PC-Q11

Pros: Enough power for mid-high range CPU and video
Gives extra working space in a small case
Stays quiet under typical load
Good price, fast rebate check. No debit card.

Cons: I really wish this was modular or had shorter cables. I'm not using even half of the power connectors, and had to wrap up all the excess length.

Other Thoughts: Driving an Ivy Bridge mini ITX gaming rig:
Intel DH77DF motherboard
Intel Core i5-3550
Antec Kuhler H20 620
EVGA NVidia Geforce GTX560Ti 448 core
16G RAM
dual SSD

Did you find this review helpful? Yes No

  • Frostblood
  • 6/20/2012 5:23:15 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsNice PSU

Pros: Great little PSU, am using it in a small form factor case and it is perfect. I have a GTX 680 in the case and this PSU doesn't ever break a sweat.

Cons: None

Other Thoughts: This is the perfect match for the new low power Ivy Bridge boards and the new 3rd generation Intel CPUs.

Did you find this review helpful? Yes No

  • N/A
  • 5/12/2012 8:35:13 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggs

Pros: Great SFX form factor PSU made by a very reputable company. I've ran other silverstone PSU's in the past and all are quality. This thing has enough beef to power my HTPC with 4 hd's. Great small form factor to save space. A SFX to ATX adapter is included.

Cons: none

Other Thoughts: The included SFX to ATX adapter is plain metal colored. Pretty ugly and would not match my black HTPC case. I few coats of flat black paint solved this and now it looks great.

Did you find this review helpful? Yes No

  • BurntHam77
  • 5/8/2012 4:29:50 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsPerfect for HTPC

Pros: Despite being non-modular, this ended up being a much better fit for a Silverstone MILO Series ML03B HTPC case. A standard size PSU, even with modular cables, was too tight of a fit in that case.

With this PSU, it gave me plenty of room between the power cables and the back of the optical drive.

It provides more than enough power for an AMD E350 APU, 8 gigs of ram, a 64 gig Corsair SSD, a 2TB hard drive and a Samsung Blu-ray drive.

Cons: Not what one would call a "gaming PSU."

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

  • DennisC10853
  • 4/28/2012 10:16:15 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorks Good - Reabate Does Not

Pros: Power supply works great. No problems so far.

Cons: I don't know about the rebate, I have a feeling I'm never going to see it. They have this strange process where you fill out an online form and submit it. Then they are supposed to email the actual form that you mail in. I have never received it and I know everything was filled out perfectly on the form and my email address is correct. They have a blurb on the online form that says to double check your email address because of it's wrong you won't get the final form. I'm beginning to think it's a scam so don't buy this power supply for the rebate buy it for it's quality and performance, chances are you will never get it. This is the last Silverstone product I will ever buy.

Other Thoughts: Why don't these manufacturers just have instant rebates or just lower the price initially? With all the paperwork and processing it has to cost them a small fortune to do rebates.

Manufacturer Response:

Thank you very much for purchasing a SilverStone. We have one of the best and fastest rebate systems in the industry because we process rebates in-house and offer real check vs. gift cards that other companies may give out. If you did not receive an e-mail from us, there is a possibility that your mail server has blocked our e-mail. You may contact our US office directly at the phone number below so we can ID your entry and send you the rebate form to another e-mail address or by fax:

909-465-9596

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

  • N/A
  • 4/21/2012 2:06:03 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsHTPC case

Pros: I am all about choosing the right parts for a build. If you don't do your research and its not what you need, then that's on you. The only thing about this PSU that was unexpected and could have been very bad... were that the main power cable was very short. Obviously this is meant for a small case (which mine was, Silverstone ML03) but even with a very common 24 pin connector placement this barely reached. Barely reached meaning I am afraid it is sideloading the connector it was so tight. No chance to route it anywhere as there was no slack.

Besides that, it was a great small PSU. It's not only very short, but the overall cube is smaller in dimensions than regular ATX power supplies. Looked kind of silly just hanging out in the larger opening, but it let me route some unused connectors behind it which was nice.

No comments on power output, stability, etc because I don't know. I just know it works in my low power HTPC and it fit well and simplified my build.

Cons: Main 24pin connector was very short... even in a case layout I would assume this was designed for. (Silverstone ML03 with mini atx board (asus F1A75-M Pro)

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

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THANK YOU SILVERSTONE!!

5 out of 5 eggs
450W SFX PSU pushing 36A on the 12V+!!! Thank you Silverstone! Just what I needed to build a mini-itx ...
— vig1lant3 1/7/2012

Excellent for ITX build

5 out of 5 eggs
My new workstation is a mini-ITX tower. I wanted a smaller, but high quality 80 plus power supply that didn't overwhelm ...
— Larry 7/31/2011


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Item#: N82E16817256063
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