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Silverstone > 
Item#: N82E16817256085

SILVERSTONE ST55F-G 550W ATX 12V v2.3 / EPS 12V SLI CrossFire 80 PLUS GOLD Certified Full Modular Active PFC Power Supply

  • ATX 12V v2.3 / EPS 12V
  • Full Modular
  • 80 PLUS GOLD Certified
  • 90 - 264 V 47 - 63 Hz
  • +3.3V@22A, +5V@18A, +12V@45A, -12V@0.3A, +5VSB@2.5A
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SST-ST55F-G
INTRODUCTION
To meet the ever higher requirements imbued by professional users and enthusiasts alike, SilverStone created the Strider Gold series power supplies.

The Strider Gold models are built on similar platform as the award-winning Strider Plus series but with even higher efficiency ratings. The Strider Gold series will encompass wattage range from 550W to 1200W for a great variety of applications. With a 140mm depth for easy intgration, the ST55F-G is the world shortest modular ATX PSU. In addition to 80 PLUS Gold level efficiency, all models are built to meet very high standards in electrical performance so they have ±3% voltage regulation, ±3% ripple & noise, and high amperage single +12V rail. Other notable features also included are 24/7 40° continuous output capability, low-noise 120mm fan, and multiple sets of PCI-E cables. For users looking for a power supply with faultless combination of performance, efficiency, and quality, there is no need to look beyond the Strider Gold Series.
SPECIAL FEATURES
  • Compact design with a depth of 140mm for easy integration
  • 80 PLUS Gold certification with higher efficiency 87%~90% at 20%~100% loading
  • 100% modular cables
  • 550W (600W peak power) 24hour fully continuous power output with 40° operating temperature
  • Class-leading single +12V rail with 45A
  • Strict ±3% voltage regulation and low ripple & noise
  • Silent running 120mm fan with 18dBA minimum


REMARK
  • Designed for 80 PLUS Gold level of efficiency to reduce wasted heat and save on electricity.


  • 100% modular cable design for use with short cable kit such as SilverStone’s PP05 or for easy removal in a case with cable routed and tied down.


  • 140mm depth sets new standard for high wattage PSUs with modular cables.

  • Powerful single +12V rail design, perfect for future high-end component upgrades or overclocking.


  • ±3% regulation and low ripple & noise performance for high stability.

  • Built-in 120mm fan has excellent airflow and low noise, perfect for quiet home or office use.



Learn more about the Silverstone ST55F-G

Model

Brand
SILVERSTONE
Model
ST55F-G

Spec

Type
ATX 12V v2.3 / EPS 12V
Maximum Power
550W
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
8
SLI
SLI Ready
Haswell Support
Yes
CrossFire
CrossFire Ready
Modular
Full Modular
Efficiency
87%~90% at 20%~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@22A, +5V@18A, +12V@45A, -12V@0.3A, +5VSB@2.5A
MTBF
100,000 hours at 25 Degrees C(at Full Load)
Dimensions
5.91" x 3.39" x 5.52"
Weight
4.85 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
8 x SATA connector
3 x 4-Pin Peripheral connector
1 x 4-Pin Floppy connector
Features
Compact design with a depth of 140mm for easy integration

80Plus Gold certification with higher efficiency 87%~90% at 20%~100% loading

100% modular cables

550W (600W peak power) 24hour fully continuous power output with 40 Degrees C operating temperature

Class-leading single +12V rail with 45A

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

Silent running 120mm fan with 18dBA minimum

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the Silverstone ST55F-G

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  • JUNG P.
  • 1/19/2014 11:42:40 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggssatisfied

Pros: purchased with silverstone's short cable kit for my sff build. short length, good build quality, inaudible compared to case fans

Cons: wish it was a little cheaper

Did you find this review helpful? Yes No

  • Lorna M.
  • 10/1/2013 3:50:30 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsAlmost Perfect

Pros: The small form factor allowed it to fit perfectly in to my Lian Li PC-Q08B and powered all of my components quite wonderfully:

CPU: Intel i7 3770k (OCED to 4.1ghz, cooled with Corsair H50)
MEM: Corsair CMD16GX3M2A1600C9
MOB: Asus P8Z77-Deluxe/WD
VID: ZOTAC ZT-60802-10P
SSD: Samsung 840 Pro 128gig

Cons: None, except that it failed after 8 months.

Other Thoughts: This little puppy ran smoothly for a good 8 months until just the other day when it sporadically began to fail several times over the course of the day.

Unfortunately I voided the warranty when I was trying out different configurations to squeeze my Corsair H50 water cooler into the case. If the manufacturer still wants to take a look at it to see what happened then I'd be happy to send it anyways.

Did you find this review helpful? Yes No

  • Charles K.
  • 9/18/2013 9:58:20 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggs

Pros: Computer powers up, small size, modular, quiet

Cons: 20+4 and all the other extra connectors attached are annoying, cables stick out far from connection point on PSU

Other Thoughts: Barley fits in my Fractal Node 304 case, some of the cables are pressing against my video card coming out from the PSU.

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

  • Larry B.
  • 7/30/2013 10:34:24 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat!

Pros: Can't even hear it.
Very stable power delivery, voltages very rarely deviate from what is requested.
Highly efficient 80+ Gold rating.
Cables are well wrapped and goes all the way to the plugs.

Cons: Cables are a little too long.

Other Thoughts: Very good PSU, I would highly recommend it for smaller cases as it is 140mm.

Manufacturer Response:

Thank you very much for purchasing a SilverStone! We also offer a short cable kit called PP05 that will help you reduce the length of cables in smaller cases. Below is the link on Newegg for PP05:

http://www.newegg.com/Product/Product.aspx?Item=N82E16812162010

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

  • Anonymous
  • 6/29/2013 11:08:36 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsFailed shortly after the 30 day newegg RMA period

Pros: Price point, specifications, performance (pre-failure).

Cons: Failed quickly, three year warranty not worth RMA headaches.

Other Thoughts: If I had another component that failed inside of the first month or two, I wouldn't score it as critically as I would a PSU. Nothing is more critical than delivering reliable power to your components. And "enthusiast" psu manufacturers claim to understand this.

PSU Failures under 'normal' operating conditions at less than 1-200 hours of operation are unacceptable, period. I will NOT be attempting to jump through SilverStone's RMA hoops, just to get another unreliable PSU from them - at the cost of shipping both ways I'm sure.

Lesson learned: If it looks too good to be true at this price point, that's because it really is. Spend a little more and go with a reputable manufacturer. Duh.

3 out of 4 people found this review helpful. Did you? Yes No

  • Bob D.
  • 4/15/2013 6:55:07 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsSeems good

Pros: Reduced size is nice, I was able to build a monster mini-ITX system in a Fractal Node 304 (with a GTX 670 in there!). Modular is nice too.

Cons: Cables stick out a bit. In my small case, they press against the video card a tiny bit, which is unnerving. But it's workable.

Other Thoughts: I thought this failed on me and took my motherboard out with it, but it seems like the issue is just the motherboard as this PSU has been powering an older (but powerful, overclocked, power hungry thing of a) PC on a stress test all afternoon with no issue, so apparently no problem there!

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

  • Bob D.
  • 4/13/2013 9:24:14 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDIed

Pros: Worked for a month

Cons: Died on me after a month and a week or two

Other Thoughts: Now I have to deal with this whole RMA business. Ugh.

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

  • Patrick J.
  • 2/6/2013 10:13:46 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsPainless

Pros: Full modular + short cable kit = Heaven! I love not having cables strewn about in the case that aren't needed. I use a mix of the short cable kit and long cables to install only what is needed.

Cons: 24pin ATX power cable is one of those stupid 20+4 designs that can be annoying to get plugged in right. Worse still, the 8-pin auxiliary power cable that goes to the motherboard is a 4+4 design that actually was a pain to get plugged in (more a problem with my case being cramped at the top-left).

Other Thoughts: This is my 2nd full modular Silverstone power supply. I put on in my HTPC right over a year ago and loved it so much that I bought this one to put in my new file server. Installation in a Raidmax Seiran case was mostly painless (see last con above). The short cable kit makes it a no-brainer to stick with Silverstone.

Did you find this review helpful? Yes No

  • Brandon N.
  • 1/28/2013 10:25:12 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsShort / Quiet / Efficient / Modifiable

Pros: Pairs Nicely with the Short Cable Set (also by Silver Stone).
Does fit in BitFenix Prodigy Case without modding.
Modular, Quiet, and Efficient. Looks nice.

Cons: Does not come with velvet bags, or case badges, or anything else gimmicky. (Not really a con).

Other Thoughts: I chose this PSU because I wanted something quiet, that fits in my Prodigy case, and is easy to sleeve.

The wires are especially easy to sleeve because of their 1:1 connector matchup. That means 1 wire per pin. This is not true of other PSUs (*cough* CORSAIR/SEASONIC *cough*) which I've read is a nightmare to sleeve. Also pins are simple to remove with a molex pin remover, and are good quality.

I have to mention that Silverstone's Customer Service is A+
Today's 24 pin connectors have one empty/unused pin (Pin 20), which lacks a wire.
For aesthetics alone, I was wondering if adding a wire would do harm to the PSU.
Called Silverstone, instantly spoke with a rep who found out for me it was A- OK!
I did my thing and it has been running perfectly for over a month now.

This is a high quality PSU.

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

  • James S.
  • 12/13/2012 3:46:56 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

3 out of 5 eggsNot best design

Pros: -Looks Nice
-Quiet
-Includes Black Screws!

Cons: The layout of the connectors negates most of the benefit of having a modular connector. Gained maybe 5mm of clearance switching from a 160mm to a 140mm drive.

Other Thoughts: I built an HTPC using a silverstone ML03B case. I saw another build that used an Silencer MK III 400W supply, but didn't notice that it didn't have an optical drive, so when trying to put both a Blu-Ray and the MKIII the build was short about 3 mm from allowing the sata power connector to fit. Long story short, I bought this one as it was 20mm shorter and should have provided more than ample room to put the drive in.

Upon installing this power supply I was met with the 24pin cable sticking right out of the back center of the supply, the molex connector itself negating several mm of clearance, and the wires themselves even more. After about 30 minutes of bending wires down it just barely fit with screws holding the optical drive in place tight against the wires in the back, and even then I had to use the cheaper MKIII sata cables as they were better suited to bending down to allow clearance.

Otherwise once powered on, it was quiet and I can't tell if the fan I am hearing when I put my ear near the media stand is the surround receiver or the HTPC.

2 out of 5 people found this review helpful. Did you? Yes No

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Item#: N82E16817256085
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