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SilverStone Technology 450W SFX Form Factor 80 Plus Gold Full Modular Power Supply with +12V Single Rail, Active PFC (ST45SF-G)

3.5 3.5 out of 5 stars 142 ratings

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About this item

  • Support standard SFX form factor and ATX via included bracket
  • 80 PLUS Gold level efficiency (87%~90% efficiency at 20%~100% loading)
  • 100% modular cables
  • 450W continuous power output at 40-degree C operating temperature rated for 24/7 operation
  • Class-leading single Plus 12V rail with 37A
  • Strict Plus or Minus 3% voltage regulation and low ripple and noise
  • Silent running 80mm fan with 18dBA minimum
  • Single PCI-E 8pin and dual PCI-E 6-Pin connectors support. Please Note: KIndly refer the User Manual before use.
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SilverStone Technology 450W SFX Form Factor 80 Plus Gold Full Modular Power Supply with +12V Single Rail, Active PFC (ST45SF-G)
SilverStone Technology 450W SFX Form Factor 80 Plus Gold Full Modular Power Supply with +12V Single Rail, Active PFC (ST45SF-G)
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PriceCurrently unavailable.$95.38$64.99$90.03$107.99$71.79
Delivery
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Get it as soon as Wednesday, Apr 3
Customer Ratings
Value for money
3.6
4.6
4.4
3.9
3.6
Noise level
4.4
4.5
4.1
4.4
Quality of material
4.1
3.8
4.1
Sold By
PEPE DEALS INC.
Amazon.com
Amazon.com
Amazon.com
VirVentures
power supply design
Full Modular
Full Modular
Full Modular
connector type
atx,pci-e
atx,pci-e
ATX
ATX
ATX
form factor
SFX12V
Atx,Sfx
ATX
SFX
SFX
Atx,Sfx
cooling method
Air
Air
Air
Air
Air
Air
fan count
1
1
1
1
1
1
wattage
450 watts
450 watts
550 watts
850 watts
300 watts
output wattage
450 watts
450 watts
550 watts
500 watts
300 watts
fan size
8 millimeters
120 millimeters
80 millimeters

From the manufacturer

SFX

logo
The SilverStone ST/SX Series of SFX Power Supplies

SilverStone offers two product lines within its SFX family of power supply products: ST for units with up to 450W of power and SX for units above 500W.

SilverStone's SFX Power Supplies

After playing a major role in expanding the small form factor (SFF) case market for do-it-yourself PC builders, SilverStone engineers have continued their push for advancement by releasing a wide range of upgrade-worthy small form factor power supplies. They encompass the following range of features to meet the needs of a wide range of buyers:

  • Either Bronze- or Gold-level efficiency
  • 300W to 650W of power output
  • One 6-pin PCIe power connector up to two 8-pin PCIe power connectors

Unique Features of Specific Models:

92mm

bracket

Modular

Certain models incorporate a larger 92mm fan for higher airflow at lower noise levels

Certain models include this SFX-to-ATX adapter to allow use in a standard ATX chassis

Certain models offer fully-modular cables, allowing you to affix only the cables you need

ST30SF ST30SF-V2 ST45SF ST45SF-G
Customer Reviews
4.5 out of 5 stars
261
4.5 out of 5 stars
261
4.4 out of 5 stars
134
3.5 out of 5 stars
142
80 Plus Level Bronze Bronze Bronze Gold
Wattage 300W 300W 450W 450W
Fan Size 80mm 92mm 80mm 80mm
Cable Type Fixed Fixed Fixed Fully-modular
Fanless Modes Fanless up to 55°C None None None
Dimensions 4.92" (W) x 2.5" (H) x 3.94" (D) 4.92" (W) x 2.5" (H) x 3.94" (D) 4.92" (W) x 2.5" (H) x 3.94" (D) 4.92" (W) x 2.5" (H) x 3.94" (D)
Power Density 378W per liter 378W per liter 567W per liter 567W per liter
ATX Compatibility With included bracket With included bracket With included bracket With included bracket
SX500-G SX550 SX600-G SX650-G
Customer Reviews
4.5 out of 5 stars
119
4.5 out of 5 stars
12
3.9 out of 5 stars
138
4.4 out of 5 stars
207
80 Plus Level Gold Gold Gold Gold
Wattage 500W 550W 600W 650W
Fan Size 92mm 80mm 80mm 92mm
Cable Type Fully-modular Fixed Fully-modular Fully-modular
Fanless Modes None None Fanless up to 45°C None
Dimensions 4.92" (W) x 2.5" (H) x 3.94" (D) 4.92" (W) x 2.5" (H) x 3.94" (D) 4.92" (W) x 2.5" (H) x 3.94" (D) 4.92" (W) x 2.5" (H) x 3.94" (D)
Power Density 630W per liter 693W per liter 756W per liter 819W per liter
ATX Compatibility With SilverStone PP08B bracket available separately With SilverStone PP08B bracket available separately With included bracket With SilverStone PP08B bracket available separately

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Product information

Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here [PDF ]

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SilverStone

SilverStone Technology 450W SFX Form Factor 80 Plus Gold Full Modular Power Supply with +12V Single Rail, Active PFC (ST45SF-G)


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Product guides and documents

Product Description

After successfully expanding and leading SFF(small form factor) cases and SFX PSU into the DIY (do it yourself) market, SilverStone engineers have continued their push for advancement in these categories by releasing a true upgrade-worthy small form factor power supply, the ST45SF-G. Despite being half the size of a regular ATX power supply, the ST45SF-G can still produce continuous power output of 450W. Its 80 PLUS Gold level efficiency is a great leap from the previous SFX best of 80 PLUS Bronze and the full modular cables is also the first of its kind for this form factor. To enable users to easily take advantage of this excellent SFX power supply, an adapter is included to convert ST45SF-G to mount in any ATX case in addition to ones that fit only SFX. For SFF users and for SilverStone, the ST45SF-G is more than just an upgrade, it is an important milestone for DIY desktop computer.

Customer reviews

3.5 out of 5 stars
3.5 out of 5
142 global ratings

Customers say

Customers like the quality, noise, performance, size and cables of the system power device. For example, they mention it provides good reliable power, is very efficient and that it works well in SFF cases. They appreciate the small size and the modular cables.

AI-generated from the text of customer reviews

59 customers mention51 positive8 negative

Customers like the quality of the power supply. They say it provides good reliable power, has enough power for reasonably powerful components, and is very efficient. Some customers also mention that the power is delivered quickly and is well made.

"...because it was the only one that was modular, 80 Plus Gold, and enough wattage..." Read more

"...It will also fit in a 2U high case.It provides plenty of power for anything you would want to put in a compact case, and the critical..." Read more

"The power supply works great and is pretty quite, but you might want to skip if you want to put it in Silverstone's FT03 mini itx case...." Read more

"...Small size, relatively quiet, seems well made, and modular...." Read more

44 customers mention35 positive9 negative

Customers like the noise of the system power device. For example, they say it's very quiet, provides 450 W of cool and quiet performance, and doesn't have any coil whine.

"...This thing is dead silent. My Corsair H50 pump drowns out the noise of the fan. I can only hear it if I put my ear right up to the back of the PSU...." Read more

"This was a great little power supply while it worked, small, pretty quiet, great set of modular cables, everything you'd want in a SFX power supply...." Read more

"...Initially I liked this power supply. Small size, relatively quiet, seems well made, and modular...." Read more

"...ownership of this power supply and it's still working flawlessly, quietly, without a single issue...." Read more

37 customers mention28 positive9 negative

Customers like the performance of the power supply. They say it performs fine, works extremely well in SFF cases, and runs their computers flawlessly. Some mention that it's good for intended purposes and has been running for a month with no issues.

"...It's 8/3/14, and I've been using the PSU for almost a year. NO issues whatsoever...." Read more

"The power supply works great and is pretty quite, but you might want to skip if you want to put it in Silverstone's FT03 mini itx case...." Read more

"...about 2 years into ownership of this power supply and it's still working flawlessly, quietly, without a single issue...." Read more

"...fired up fine, but the minute I attached any hard drive to it, it would not boot...." Read more

35 customers mention28 positive7 negative

Customers like the size of the power supply. For example, they say it's sleek, compact, and has a small foot print. That said, some say it works beautifully and enables them to keep the weight down in small case builds.

"This was a great little power supply while it worked, small, pretty quiet, great set of modular cables, everything you'd want in a SFX power supply...." Read more

"Pros:This thing is small, less than half the volume of a standard (short) ATX unit...." Read more

"...Initially I liked this power supply. Small size, relatively quiet, seems well made, and modular...." Read more

"Compact, good cabling options. Be advised that buying cables other than the ones that comes with the unit is normally not necessary...." Read more

23 customers mention23 positive0 negative

Customers like the cables of the system power device. They say the modular cable design is a great idea for SFX computers, and the connectors are a plus. The included modular cables are neatly sleeved, but the wires are somewhat thin. Customers also appreciate the large selection of accessory cables available, which allows them to customize their system. Overall, customers say the power supply is the best fully modular SFx power supply on the market.

"...being said, I turned to this PSU because it was the only one that was modular, 80 Plus Gold, and enough wattage..." Read more

"...little power supply while it worked, small, pretty quiet, great set of modular cables, everything you'd want in a SFX power supply...." Read more

"...Small size, relatively quiet, seems well made, and modular...." Read more

"...came out being exactly helpful in my case -- but the modularity IS a nice feature overall...." Read more

10 customers mention6 positive4 negative

Customers are mixed about the value of the system power device. Some mention that it's a good buy at a reasonable price, while others say that it is a bit pricey compared to full sized power supplies.

"...I turned to this PSU because it was the only one that was modular, 80 Plus Gold, and enough wattage..." Read more

"...It's on the expensive side, but smaller and cheaper than 80 Plus Platinum supplies which are probably no more efficient at light loads...." Read more

"I knock 2 stars off mainly because I think the unit is overpriced. At $50, it would be a great product...." Read more

"...supplies, but for a gold-rated, top-quality power supply it is completely worth it, especially considering that this PSU is about half the size of a..." Read more

8 customers mention0 positive8 negative

Customers are dissatisfied with the connectivity of the system power device. They mention that the cables are rather short, hard to manage, and require a bit more clearance than a non-modular power. They also say that the output connectors are limited and do not fit from the PS.

"...Notes:As suits a supply for small cases the output connectors are limited: 1 motherboard, 1 CPU, 1 PCIe, and 3 SATA/Molex...." Read more

"...CON:The only issue I had was the ATX power supply cable fell short by several inches and I had to buy a 10-inch Athena Power extension cable..." Read more

"...The only thing I didn't like was that the cables are rather short (had to buy extensions)...." Read more

"...a harder time installing this power supply due to the cables needing a bit more clearance than a non-modular power supply's cables do...." Read more

6 customers mention0 positive6 negative

Customers are dissatisfied with the stiffness of the cables in the system power device. They mention that the cables are not all that flexible.

"...One negative is that the cables aren't all that flexible, but I'm in the process of cutting them down to fit anyway...." Read more

"...The 24-pin mobo power cord however, was super fat, super stiff, and strangely short (maybe under a foot but I did not measure)...." Read more

"...The included modular cables are neatly sleeved, but the wires are somewhat stiff, so you might want to consider purchasing the Silverstone PP05-E..." Read more

"...Some of the cables were overly stiff and hard to maneuver. The shortened flat cable kit is a must for my build...." Read more

Cables too short!
1 Star
Cables too short!
I bought this power supply for a Sliverstone ML03 case. This power supply is listed on the Sliverstone website as a "recommended" part due to its decreased size (compared to full ATX size) so you don't run out of space if you install an optical drive and shorter cables so you don't have a lot of excess length that you don't have space to bundle up since its a small form factor case. Well right away I noticed a problem. The main 24 pin connection cable for the motherboard is about two inches too short! I can't image its the fault my motherboard's design (Gigabyte GA-Z170MX) because the connector is too far away, the cable should be long enough to reach anywhere within the case! Back to Amazon this product goes!
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Cliente de Amazon
4.0 out of 5 stars Entregado en buenas condiciones
Reviewed in Mexico on March 30, 2016
seb.note
5.0 out of 5 stars Trust SilverStone
Reviewed in Canada on November 19, 2020