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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 47 - 63 Hz
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SFX Series ST45SF 450W Power Supply

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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 truly 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. Enthusiast-oriented features are also present with single +12V rail and 8-pin / 6-pin 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.

 

Key Features

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  • Supports standard SFX form factors and ATX via included bracket
  • 450W continuous power output at 122°F (50°C) operating temperature rated for 24/7 operation
  • 80 PLUS Bronze level efficiency (82 - 85% efficiency at 20 - 100% load)
  • Class-leading single +12V rail with 36A
  • Silent running 80mm fan with 18dBA minimum
  • Single PCI-E 8-pin and dual PCI-E 6-pin connectors support
  • Active PFC

Details

feature_01

80 PLUS Bronze certified to reduce wasted heat and save on electricity

feature_02

Built-in 80mm fan has excellent airflow and low noise, perfect for quiet home or office use

feature_03

Powerful single +12V rail design, perfect for future high-end component upgrade

feature_04

Included SFX to ATX bracket for use in ATX case

Dimensions

Dimensions

What's in the Box

What's in the Box

 


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
Haswell Support
Yes
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

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  • Robert B.
  • 3/5/2014 8:45:53 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsExcellent PSU

Pros: The small size of this unit is especially great for Mini ITX cases, but even for larger cases, if your parts don't require too much power, this is an excellent option.

I am able to run a respectable gaming setup on this PSU consisting of a Radeon 6850, AMD A10-5700, 16 gigs of ram, and an SSD.

Cons: If you are putting together a powerful machine, you'll need to know the power draw of each part, especially the video card.

The PSU is not modular, so it might be tough to manage the extra cables, especially in a small case.

Standard ATX 450 watt PSUs tend to cost less than this SFX model.

Did you find this review helpful? Yes No

  • Christopher F.
  • 2/8/2014 12:52:04 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggs

Pros: Plenty of power for mini itx rigs

Cons: None so far

Other Thoughts: Running i7 2600k, evga 670ftw, 2ssd and 1 3.5 HD

Did you find this review helpful? Yes No

  • STEPHEN W.
  • 1/6/2014 9:30:00 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsPower Supply

Pros: Small, as a SFX ps should be.
Functions as expected.
Silverstone.
Wire lengths give best cable management - they go where they go and nothing more.
Bronze efficiency.
$80 when purchased.
Has not died yet.
Any possible but hopefully unneeded repairs will be easy due to layout.

Cons: Will indefinitely break as all things do.

Other Thoughts: Good work, Silverstone. Thank you for providing us consumers with a cheap and efficient power supply.

Did you find this review helpful? Yes No

  • Carlos S.
  • 11/23/2013 9:17:41 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsPerfect

Pros: Great so far, I am running a XFX 7950 with a haswell i3 on a Micro ATX... Very happy with this setup and is wallet friendly!

Cons: None so far!

Did you find this review helpful? Yes No

  • Henry C.
  • 11/22/2013 10:43:05 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

1 out of 5 eggsFan makes crakling noise

Pros: small for factor

Cons: fan makes crackling noise . I've only been using this for 4 months.

Other Thoughts: While Silverstone offers 3-year warranty, I have to pay for shipping and I have to wait for who knows how long to get the unit back. Maybe not worth the hassle. I will rethink purchasing Silversone PSU in the future

Manufacturer Response:

Thank you for buying a SilverStone. I want to appoligize for your less than satisfactory experience with the ST45SF PSU. Just as you had mentioned the unit does come with a 3 year warrenty against issues such as this, and the processing time from our US office is relatively quick, typically getting a response the same day. Essentially this means that the only time waiting is on the shipping process between SilverStone and the end user. Please feel free to either call the US office or email us at USASupport@silverstonetek.com to begin the RMA process.

You can find more through the contact us link on the SilverStone Tek website here: http://silverstonetek.com/contactus.php?area=en

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

  • Jeffrey S.
  • 11/14/2013 6:07:42 AM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsGreat for mini-ITX gaming rig

Pros: I've got one of these pre-installed in my Silverstone Mini-ITX case. This PSU runs like a champ. Never had any problems with it running fairly intense gaming sessions. Also runs quietly.

Cons: None

Other Thoughts: This PSU is powering the following components:

i7-2700K CPU
Samsung 840 250GB SSD (sata III)
750GB 2.5" laptop drive (sata II)
Slim DVD-RW optical drive
16GB Gskill DDR3 RAM
Nvidia Geforce GTX 670 GPU

Did you find this review helpful? Yes No

  • Steven S.
  • 10/25/2013 3:22:59 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsworks very good more power

Pros: works very good more power

Cons: n/a

Did you find this review helpful? Yes No

  • Gerardo D.
  • 9/12/2013 3:46:51 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsVery Reliable Stable

Pros: Stable efficient power, reliability from Silverstone, very quiet fan, all the connections you'll ever need.

Cons: none

Did you find this review helpful? Yes No

  • Walter C.
  • 8/6/2013 10:58:02 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsThe little PSU that can

Pros: Bought this in Jan 2011 after the OEM desktop power supply blew up. Has been in use for 2+ years now with no issues. Comes with a full size ATX bracket just in case.

Cons: None actually, verify this is the size(dimensions) you need.

Other Thoughts: Was a replacement for a custom build desktop case. The original PSU couldn't take the smokers style of living. I have also did some case air flow mods and that may be helping this one along.

Did you find this review helpful? Yes No

  • Daniel B.
  • 7/19/2013 8:50:11 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsQuality Power Supply

Pros: Put this into a Sugo SG05B case with an MSI Z77IA-E53 and Intel I3 core ..seems to be working fine. Generates very little heat. I mounted the fan facing the top of the case, in that configuration the fan seems a little louder. Probably would have been better to mount the fan facing downward as it would then also help push air out of the case. Otherwise I am always impressed by the heft and construction of these Bronze level, higher quality power supplies. Energy efficiency is good for the environment.

Cons: No cons

Did you find this review helpful? Yes No

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Item#: N82E16817256063
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