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Silverstone > 
Item#: N82E16817256084

SILVERSTONE ST45SF-G 450W SFX12V SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply

  • SFX12V
  • Full Modular
  • 80 PLUS GOLD Certified
  • 90 - 264 V 47 - 63 Hz
  • +3.3V@19A, +5V@14A, +12V@37A, +5VSB@2.5A, -12V@0.3A
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SFX Series 450W Power Supply

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 a 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.

 

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% 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

Remarks

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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

±3% Regulation and low ripple and noise performance for high stability

feature_05

Included SFX to ATX bracket for use in ATX cases

feature_06

100% Modular cable design for easy removal in a case with cable routes and tie-downs

Dimensions

Dimensions

 


Learn more about the Silverstone ST45SF-G

Model

Brand
SILVERSTONE
Model
ST45SF-G

Spec

Type
SFX12V
Maximum Power
450W
Fans
1
PFC
Active
Main Connector
20+4Pin
+12V Rails
Single
PCI-Express Connector
1 x 6-Pin, 1 x 6+2-Pin
SATA Power Connector
3
SLI
SLI Ready
Haswell Support
Yes
CrossFire
CrossFire Ready
Modular
Full Modular
Efficiency
87%~90%(20% to 100% loading)
Energy-Efficient
80 PLUS GOLD Certified
Over Voltage Protection
Yes
Input Voltage
90 - 264 V
Input Frequency Range
47 - 63 Hz
Output
+3.3V@19A, +5V@14A, +12V@37A, +5VSB@2.5A, -12V@0.3A
MTBF
100,000 hours at 25 Degrees C, full load
Dimensions
4.92" x 2.5" x 3.94"
Weight
3.2 lbs.

Features

Connectors
1 x 24 / 20-Pin motherboard connector
1 x 8 / 4-Pin EPS / ATX 12V connector
1 x 8/6-Pin PCIE connector
1 x 6-Pin PCIE connector
3 x SATA connector
2 x 4-Pin Peripheral connector
1 x 4-Pin Floppy connector
Features
Support standard SFX form factor and ATX via included bracket

100% modular cables

450W continuous power output at 40 Degrees C operating temperature rated for 24/7 operation

Class-leading single +12V rail with 37A

Strict +/-3% voltage regulation and low ripple & noise

Silent running 80mm fan with 18dBA minimum

Single PCI-E 8pin and dual PCI-E 6pin connectors support

Active PFC

Quick Info

Warranty

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


Customer Reviews of the Silverstone ST45SF-G

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  • peter d.
  • 3/18/2014 5:28:59 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat Supply for Small Box

Pros: - SFX form factor
- Modular cables
- Quiet
- 450 Watts

Cons: none but remember this is for a small box

Other Thoughts: This supply is ideal for a small Mini-ITX build. I used it to build a system in the Bitfenix Prodigy case using the ASUS Z87I-Deluxe motherboard. The Prodigy is one of the larger mini-itx cases available. The main 12V power cable to the motherboard barely reached. I had route that very directly in order to reach. I don't see this as a negative because you want shorter cables for most mini-itx builds. I like this supply a lot.

Did you find this review helpful? Yes No

  • Derran O.
  • 3/15/2014 1:58:44 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

2 out of 5 eggsCables Too Short

Pros: Compact, modular.

Cons: Just like other folks have said, the cables are TOO SHORT! I bought this power supply based on compatibility list for the SilverStone ML04 series case. What a waste. Now I need to buy another set of cables, pushing my power supply purchase above $140.

Other Thoughts: SilverStone should supply me with FREE replacement cables!

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

  • Olivier B.
  • 3/9/2014 8:45:26 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsNot quite sure about the price

Pros: Quiet (fan won't start unless it needs to)
Nicely sleeved cables
Fully modular

Cons: Price (see other thoughts)
Length of the cables (see other thoughts)

Other Thoughts: I previously purchased the SILVERSTONE SFX ST30SF 300W for 50$ but I wanted something that could eventually support a high-end gpu so I ended up buying this one (100$). For 50$ more, you get 150 watts in extra and sleeved/modular cables. I think the price gap is a bit high, especially when you compare it to regular atx power supplies. The cables are a bit on the short side for my case (SILVERSTONE MiloML05B) but that might be because of my motherboard layout.

Did you find this review helpful? Yes No

  • Lawrence H.
  • 2/12/2014 3:38:34 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGood Little P/S

Pros: Compact with a good power rating. Running Q6600 rig on P45 board with 4G of ram and 4870 for 24/7 folding with no problems. Runs very quiet, doesn't get hot and takes on a fairly hungry system with no problems!

Cons: Short cables, as expected not really a hit, but don't buy this if you have more than 10" of distance between your P/S and peripherals. Thin cable set not included, and now it is out of stock almost everywhere!

Other Thoughts: I bought this power supply for a future itx build but had to "borrow" it while I was re-purposing an old rig to do Folding@home. When it comes time to make the switch to the itx system, I know this little gem will power it with no problems!! Thanks Silverstone, you restored my confidence in your products.

Did you find this review helpful? Yes No

  • Anonymous
  • 2/5/2014 11:22:28 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsBetter than the first...

Pros: SFX with short cables
80+ Gold
Fully modular

Cons: Same as before...
Power cables plug in too tightly. Takes significant effort to plug/unplug 24 pin.
Cables are very stiff. Better cables (search for PP05-E) cost extra.
My second one makes the same intermittent buzzing sound that I RMA'd the first for. It's much quieter and less often than the first was so I'm not going to RMA again... yet. Glad it has a 3 year warranty.

Did you find this review helpful? Yes No

  • Patrick G.
  • 2/1/2014 1:26:13 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsFan is a bit too noisy for the price

Pros: The only 80 plus gold certified SFX power supply available for sale in the US.

Cons: I bought this power supply to use with a Sugo mini-ITX case (http://www.newegg.com/Product/Product.aspx?Item=11-163-231). I want this system to be inaudibly quiet, so bought a 120mm Noiseblocker fan in anticipation of having to replace the 120mm fan provided with the case. Ironically, the 120mm case fan is completely silent (I ended up just using it), but the power supply fan is clearly audible. It's quiet by most people's standards, but not compared to a Noiseblocker or Noctua CPU fan. Given the cost of this power supply I feel like Silverstone should have gone the extra mile to provide a quieter fan.

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

  • Anonymous
  • 1/24/2014 1:35:26 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

3 out of 5 eggsRMA

Pros: -SFX form factor.
-Comes with short cables for ITX cases.
-Contrary to popular belief, 450w is plenty for the majority of single-GPU systems. Especially when you're limited by what you can fit in an ITX case which is what this will mostly be used for.

Cons: -24 pin cable plugs in *very* tightly. It's actually a bit difficult to plug in, and to unplug it I had to pry on it with a screwdriver.
-Cables look pretty bad. Of course they sell better cables for an extra $25. I doubt they cost much more to make and this is not a cheap PSU. They should really just include the better cables.
-It made intermittent buzzing sounds. Annoying enough to send in for RMA.

Did you find this review helpful? Yes No

  • Victor T.
  • 1/22/2014 2:16:11 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat little PSU

Pros: Just about everything.

Cons: The fan is the loudest part of my computer. Given I can sit a foot away from the tower and not hear it with headphones on (no music, just a little extra sound dampening), it's just a shame that Version 2.0 didn't do anything to improve the fan acoustics. Not worth docking an egg.

Other Thoughts: Had to replace the included cables with the PP05-E set. Would have preferred it if flat cables like those were included instead of the round sleeved version.

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

  • Ray W.
  • 12/15/2013 5:26:57 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsMuch Quieter than I thought.

Pros: Currently powering a 4770k with a GTX 780 and its not even breaking a sweat. Very impressed with the build quality and the modular cable selection. Its quieter than my old power supply that was using a full 140MM fan while powering the same load.

Silverstone is a reputable brand that will support their products and has a wide selection of modifications you can buy if you need something specific.

Cons: The cables are a little bit on the short and stiff side. Specifically the Sata cable chain is very stiff on the final jump, I was worried I might damage my ssd if I moved it much. Unless you plan on using a direct replacement cable set there isn't much reason for the 24pin and 8pin to be modular as they are 100% needed on just about every system.

Other Thoughts: Overall a pretty impressive product given its rated power output and ability to actually do that.

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

  • Anthony V.
  • 11/7/2013 5:59:34 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWow

Pros: Small, light weight.
Fan spin up is inaudible on startup. Have not put it under heavy load yet, but reports suggest that this particular version (v2) is near completely silent.
I am not going to do the legwork to verify this, but I am 98% sure this now comes with the short cable kit. Cables were very compact and still quality.

Cons: Price, but since this is the only modular SFX gold PSU the lack of competition allows Silverstone to charge a $15-20 premium. Still worth it, IMO.

3 out of 3 people found this review helpful. Did you? Yes No

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Item#: N82E16817256084
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