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  • SilverStone Strider 400W, 80 PLUS, Active PFC Power Supply ST40F-ES (Black)
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SilverStone Strider 400W, 80 PLUS, Active PFC Power Supply ST40F-ES (Black)

19 customer reviews

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  • High efficiency with 80 PLUS certification
  • 400W 24hour continuous power output with 40- Degrees operating temperature
  • Class-leading single +12V rail with 25A
  • Silent running 120mm fan with 18dBA minimum
  • Active PFC

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Technical Details

  • Brand Name: SilverStone Technology
  • Model Number: ST40F-ES

Product Description

The Strider Essential series model ST40F-ES is 400W power supply with 80 PLUS certification level efficiency and single +12V rail design. Its quiet running fan ensures stable performance with minimum noise while its solid design and components support up to 40 degrees for 24/7 operation. The ST40F-ES can also fully support multi-GPU systems with 8pin/6pin PCI-E connectors.

Product Details

  • Product Dimensions: 10 x 7 x 4 inches
  • Shipping Weight: 4.4 pounds
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0034XRDUK
  • Item model number: ST40F-ES
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (19 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: January 13, 2010

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

1 of 1 people found the following review helpful By ZeroCool on November 3, 2010
Verified Purchase
I got this for less than forty bucks after rebate. The features that distinguish this PSU from other cheaper 400W ones are, active PFC, single 24A 12V rail and 80 PLUS operation. All power cables were of sufficient length (you can check cable length on silverstone webpage) and I had no problems connecting 1 HDD and a dual 6-pin plug single slot NVIDIA GTX 460 GPU. My power budget accounting went a little off when I was able to unlock my athlon ii x3 as a phenom ii x4 but this supply is still holding good. The rebate also came back within 2 weeks. Also I haven't heard the fan yet even when benchmarking. So overall pretty happy.

Update:
Supports Intel Haswell CPUs as per list on Silverstones webpage
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1 of 1 people found the following review helpful By Goodfella on August 28, 2012
Verified Purchase
Since I'm using a Silverstone ML03 case this is a perfect fit for a very limited space especially if using an optical drive. Also being a HTPC build noise is always a factor and the Strider is very quite. If it were modular it would be even better but no doubt more expensive the attached cabling works well both in attachments and lengths. The Strider is a bit pricey for 400W but seems well built and for my needs worth it. So if 400W will cut it for you and noise or tight quarters or both are a factor I can't see where you can go wrong going with this PS.
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1 of 1 people found the following review helpful By Akoni on March 9, 2011
Verified Purchase
After I built my WHS I noticed I could hear fan noise coming from it. I only had fans on three sources: 1. cpu heatsink, 2. rear case fan, and 3. dual 80 mm fans on a TT power supply. Going on a recommendation about the consistent high quality of Silverstone power supplies from HardOCP, I purchased this one. This has more than enough power for my needs and is only audible upon close inspection.
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Verified Purchase
Two years ago I built an i7-2600 based system for my wife. The power supply was a 550W Rosewill that I cannibalized out of the AM2/Phenom system it replaced. That Rosewill never delivered more than 400W from day one, but it worked fine for our needs. One day, the system started powering off suddenly without a crash dump or any warning. I got out my power supply tester, found that the Rosewill was having massive voltage fluctuations on the 12V rail (it was dipping as low as 8V!), and decided to pull it and replace it with something more trustworthy.

This PSU is working perfectly. It's quiet, it's small, and it provides a clean 420W of power. (If you look at the side label, it's actually rated for 420W). Unless you're running some super-rig, you probably don't need more power than what this thing provides. Plus, I trust the brand name.

420W will power: a Core i7-2600 (not K, not overclocked), 16GB of low-latency DDR3-1333, two 3TB hard disks, a flash SSD for a boot drive, and an nVidia GeForce 650ti. A little anemic for a gaming PC, some may think, but it still maxes out just about every game at 1680x1050.
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Verified Purchase
This supply is replacing another SilverStone that is likely 6+ years old. The only negative for me with this supply is that there are not enough legacy 4 pin HDD connectors. It is short one and really needed another to drive some case fans. Ended up using a splitter. Other than that, a good supply. Hoping it lasts as long as the first one.
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Verified Purchase
Works well enough. Have ran a bunch of benchmarks and havet had any shut downs. I have an i7 -2600, evga gtx 960 ssc, an Intel 730 SSD, a segate 1tb hard drive and a Samsung CD drive. Powers all of them just fine. Can't really over clock the graphics card because. I'm right at the limit with this psu. But I already knew that.
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2 of 3 people found the following review helpful By drdave on January 14, 2013
Verified Purchase
I have only had this for a few weeks but it seems to run great. It fit great into the Silverstone case I bought.
Very quiet operation. I had to feel the air flow to make sure it was running.
Connectors were all fine and it came packaged well.
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Verified Purchase
Used in a CoolerMaster Elite 130 and it works really well, keeps the airflow going in the right direction and it's very quiet. Modular would have been nice, but modular is more expensive, and this was going into a cost-sensitive application. I won't deduct a star for a product not being a different product.
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