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Silverstone 4 Ports USB 3.0 Super Speed PCIe Card GEN2 x1 2 INTERNAL+2 External USB

Silverstone 4 Ports USB 3.0 Super Speed PCIe Card GEN2 x1 2 INTERNAL+2 External USB - 1
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Silverstone 4 Ports USB 3.0 Super Speed PCIe Card GEN2 x1 2 INTERNAL+2 External USB - 70953_l.jpg Customer Photos (0)
Silverstone Technology
Reg. Price: $31.10  CAD
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   Shipping Weight:   0.2 lbs
   Part #: SST-EC04-P
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Features    [ Edit | History ]

SilverStone created an excellent extension card product, the EC04, which connects to the motherboard via single lane PCI Express 2.0 to support two external and a dual port USB 3.0 connector for maximum compatibility and flexibility. This card is a great add-on for systems that require connections to multiple USB 3.0 devices such as SilverStone¡¯s own USB 3.0 enclosures RVS02 and TS07.

  • USB 3.0 with two external standard Type-A ports and one dual port internal connector
  • PCI Express 2.0 with single lane (x1) throughput 5Gbit/s
  • Supports simultaneous operation of multiple USB 3.0/2.0/1.1 devices
  • Adds four total USB 3.0 ports to your system
  • Built-in power connector to receive extra power from system power supply

Specifications    [ Edit | History ]
Model No.
Power requirement
5Vdc via peripheral 4pin power connector
Operating system support
Windows XP, Vista, 7(32bit/64bit)
Form factor
Low profile single lane (X1) PCI Express 2.0
USB 3.0 controller
USB Ports
Dual port USB 3.0 support (one internal connector)
Enclosure Interface
USB3.0 (Max. 5Gbps) compatible with USB 2.0
USB bus power output
5Vdc / unlimited current
Transmitting Speed
USB 3.0(5Gbit/s), USB 2.0(480Mbit/s), USB 1.1(12Mbit/s)

Silverstone Technology SST-EC04-P Customer Reviews

Product reviews on are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Silverstone Technology SST-EC04-P reviews.
Experience: 17 Months
Works reasonably well with good transfer speeds to USB 3.0 devices
Have to get unique drivers that I doubt will ever get updated
Does its job in terms of providing USB 3.0 connectivity.

Experience: 2 Weeks
 Verified Owner
Great for adding front USB 3.0
worry about quality
I bought this because because my board did not have a header for front USB 3.0, works great but I do worry about the plate, seemed like a bit on the weak side.

Flying Pig
Experience: 1 Days
 Verified Owner
Easiy adds USB3 to older boards and cases. Works as it should.
Used this with a cable adapter (SKU 63940) to connect USB3 casefront ports. Windows 8 recognized it immediately and did not need drivers. A mini-CD supports XP-Vista-Win7.

Works fine. It can run at least two ports at full speed simultaneously (two external USB3 drives).

There's a low-profile bracket included.

Experience: 14 Days
 Verified Owner
Low price for the promise of 4 USB 3.0 ports
Getting this thing to work
The big selling point was the internal USB 3.0 header. My motherboard only has one such header and I needed another for two more 3.0 ports on my chassis.

First off, the card I got would only fit loosely in my PCIe x1 port. As in you could REALLY wiggle the card around if you wanted too. "Pushing" the card in to get a snug fit would make the card slanted and not fit the chassis expansion slot. Already off to a great start.

Installing the Texas Instruments USB controller driver is easy as can be and Windows 7 recognized the card soon after. Great! Now comes the fun part: Restarting my machine made the card unrecognisable to Windows. No response from any of the four ports. So I deleted the TI USB controller and re-installed the drivers to fix the problem. All was well...until restarting.

No response from the card...again! Tried a number of different things: BIOs update, more recent TI drivers, moving the card to another free PCIe slot. Nothing stuck. Half the time, I couldn't even install the drivers because the installer would literally not see the card.

And to add insult to injury, the audio-out ports on my motherboard pretty much stopped working properly after trying to get this card working.

Maybe I just got a defected card, who knows? All I know is this experience annoyed me so much that I don't ever want to deal with any Silverstone expansion card ever again.

Experience: 5 Days
 Verified Owner
Small, 4 ports (2 internal and 2 external), cheap.
Doesn't seem to work with my external HDD.
I purchased this for use with a USB 3.0 external hard drive that I purchased, however the drive keeps disconnecting and stops working frequently when connected to this controller. Copying files just stutters and freezes, and sometimes windows reports disconnects and reconnects.

It's pretty horrible. I tried the same enclosure with another USB 2.0 port in my PC and it worked fine, so that leads me to believe that this controller has issues.

I downloaded and am using the latest drivers from Silverstone's site.

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Messages about Silverstone 4 Ports USB 3.0 Super Speed PCIe Card GEN2 x1 2 INTERNAL+2 External USB

Want to buy Okgear 4397 or similar (ron_l- Aug 22, 12, 1 Replies) Read this message
Will this work in PCIe 2.0 x16 slot? (Sheldon_T- Jul 21, 12, 4 Replies) Read this message

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Forum messages are not reviewed and may not contain accurate information about a product. Message contents are opinions from customers based on their own experience with a product. We do not recommend you make puchasing decisions based on Forum messages.
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