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- By David_W @Jun 04, 2010
Introduction
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? 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.
Special Feature
Support standard SFX form factor and ATX via included bracket 450W 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 36A Silent running 80mm fan with 18dBA minimum Single PCI-E 8pin and dual PCI-E 6pin connectors support Active PFC
Remark
Designed for 80 PLUS bronze level of efficiency to reduce wasted heat and save on electricity.
Built-in 80mm fan has excellent airflow and low noise, perfect for quiet home or office use.
Included SFX to ATX bracket for use in ATX case.
Specifications
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- by David_W @Jun 04, 2010
Model No.
SST-ST45SF
Max. DC Output
450W
Load Range
+3.3V
+5V
+12V1
+5VSB
-12V
Max.(Amps)
21A
22A
36A
2.5A
0.5A
Peak (Amps)
/
/
/
3A
/
Min.(Amps)
0.1A
0.2A
0.6A
0A
0A
Range (%)
±5%
±5%
±5%
±5%
±10%
Line Reg.(%)
±1%
±1%
±1%
±1%
±1%
Ripple(mVp-p)
70mA
70mA
140mV
70mV
140mV
combined +3.3, +5V
120W
combined +12V
432W / 36A
Input Voltage
90V ~ 265V
Input Frequency Range
47Hz ~ 63Hz
PFC
Active PFC(PF>0.95 at full load)
Efficiency
82%~85%(20% to 100% loading)
MTBF
100,000 hours at 25°C, full load
Operating temperature
10°C ~ 50°C
Protection
Over current protection Over power protection Over voltage protection Under voltage protection Short circuit protection
Connectors
1 x 24 / 20-Pin motherboard connector(300mm) 1 x 8 / 4-Pin EPS / ATX 12V connector(400mm) 1 x 8/6-Pin PCIE connector(400mm) 1 x 6-Pin PCIE connector(550mm / 150mm) 3 x SATA connector(300mm / 220mm / 100mm) 2 x 4-Pin Peripheral connector (300mm / 200mm) 1 x 4-Pin Floppy connector(300mm / 200mm / 200mm)
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Messages about Silverstone Sfx Series ST45SF 450W Power Supply Small Form Factor 24PIN PCI-E 36A 80+ Bronze Black
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Reviews from the Web
Below are reviews found on other web sites for this product submitted by customers.
This week, a very small package came was dropped off on my doorstep by FedEx. At first I thought it was more Gloria Jean's coffee for the Keurig coffee maker, but it turns out that SilverStone's latest SFX power supply was inside of this package.SFX power supplies are used in MicroATX and
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Needed this to replace a failed P/S in a mini-server case. 450w from a P/S this size is really impressive. It's a bit overrated for the application but the other choices would not work correctly due to their dual rail design.
This review was modfied by poster @ 05-07-12 09:39 PM
(Read More)
A great little PSU for powerful yet small builds. Comes with enough connectors to connect anything you'd ever want to inside something like an ITX case. PM took off over 1/4 of the price, making this pretty affordable for what you get.
If ever I needed another PSU for an ITX build, I likely wouldn't look anywhere other than this.
(Read More)
got this to power a simple but compact itx system with two hdd's and a 5450 works great stays quiet uses way less space with shorter cables which every one who's built in a lian li q08 will appreciate. I'll try to use these in all my future small form factor builds.
(Read More)
This is the right fit for a mATX case with a SFF power supply. I bought this to replace the noisy power supply that came with the case. Very hard to find replacement SFF power supplies especially one that is 450w.
(Read More)
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