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Silverstone EC03B-P USB 3.0 PCI-EXPRESS Card With USB 3.0 Front IO

Silverstone EC03B-P USB 3.0 PCI-EXPRESS Card With USB 3.0 Front IO - 63378_l.jpg
Actual product may not be exactly as shown.
Silverstone EC03B-P USB 3.0 PCI-EXPRESS Card With USB 3.0 Front IO - 63378_l.jpg Silverstone EC03B-P USB 3.0 PCI-EXPRESS Card With USB 3.0 Front IO - 63378_1.jpg Silverstone EC03B-P USB 3.0 PCI-EXPRESS Card With USB 3.0 Front IO - 63378_2.jpg Customer Photos (0)
Silverstone Technology
Reg. Price: $43.98  CAD
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   Shipping Weight:   0.6 lbs
   Part #: EC03B-P

Features    [ Edit | History ]

SilverStone EC03 is an expansion card that connects to the motherboards via a single lane PCI-E gen 2.0 slot. Its single USB 3.0 internal connector offers output for dual front port USB 3.0 super speed interface which enables data transfer with maximum compatibility and stability. For those looking to use cases or drive bays that supports the new USB 3.0 internal connector standard, the EC03 is the quickest way to upgrade any motherboard with PCI-E gen 2.0 slot to be compatible with the new standard.

  • USB 3.0 front I/O bay included

  • Supports standard USB 3.0 internal connector

  • PCI Express gen 2.0 with single lane(x1) throughput 5Gbit/s

  • Supports simultaneous operation of multiple USB 3.0/2.0/1.1 devices

  • Offers up to two external USB 3.0 super speed ports

  • Support 5V bus power from computer's power supply

  • Build in power connector to receiving extra power from system


Specifications    [ Edit | History ]
Model No.
Power requirement
5Vdc via peripheral 4pin power connector
Form factor
Single lane(x1) PCIe gen 2.0
USB 3.0 controller
NEC uPD720200
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 / 900mA
Drive Support
Windows XP, Vista, 7(32bit/64bit)
Transmitting Speed
USB 3.0(5Gbit/s), USB 2.0(480Mbit/s), USB 1.1(12Mbit/s)

Customer Reviews of (Silverstone Technology EC03B-P)

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 in these reviews.
Experience: 30 Days
Got 75-100Mb when transferring from usb3.0 portable hdd
You must have a 3.5" bay or a 5.25" to 3.5" converter bracket
You PSU must have a molex connector long enough to reach the card
I didnt run into any problems. There is a firmware upgrade from Silverstone and with their latest driver, everything works fine in Win7.

Beware that you must mount the front i/o in a 3.5" bay. ie: floppy bay. Many cases nowadays dont have it anymore

Experience: 5 Days
 Verified Owner
Front bracket is included
Long cables
No rear ports- though this was known before buying
Single screw connection == wiggly ports
In my case, not plug and play with Win7.
Mine had a molex power connector- I actually had none left, and had to piggy-back a close-by fan connector.
So my major gripe is the connection between the cable and bracket. The cable itself as well as the ports are quite beefy looking. The bracket looks like a normal bracket. However, the bracket and the ports are held together by a single screw. That means when you push a drive in, there is some play in the port. It feels like you'll push the port back into the case (this hasn't happened, but it feels inevitable). The ports wiggle left and right, which is super annoying.
I needed the disk to install, but after that all my USB3.0 drives were picked up by the OS.

Experience: 15 Days
 Verified Owner
It works and actually does fit in the one m/b slot that was available even though that one slot is adjacent to a m/b chipset heatsink.
No problems to report.
It would have been nice if I received the exact model as pictured on the ncix website with both connectors at the top of the card but such was not the case. That was the reason I ordered this particular one instead of saving roughly 15 dollars at the time and ordering a different model that I am sure would have worked as well. Doesn't matter though because I did get lucky in that the connections were able to be made regardless of the location of my m/b chipset heatsink which just happens to be right next to the port this card plugs into.

Experience: 1 Weeks
 Verified Owner
Easy installation, Really small, front panel cable long enough
no rear port
This work really great. My onboard USB3 on my Evga X58 FTW3 don'T deliver enough power to keep my external seagate 1tb drive running. I bough this small card to get the front port pannel. The card is really tiny and simple to install. The cable to the front pannel was long enough for my Antec P180 case. My external drive now work perfectly at a speed of 100+ mb/s.

Experience: 1 Days
 Verified Owner
-enables USB 3.0 without replacing your mobo
-quick and easy install
-fills up a PCIE slot on your mobo; unless you have two or three this is a problem
-only has capacity for two USB3.0 inputs
Just got it hooked up today; took me under 10 minutes. Everything works great right off the bat. Let's hope it stays that way!

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Messages about Silverstone EC03B-P USB 3.0 PCI-EXPRESS Card With USB 3.0 Front IO

Chipset NEC 720200 or 720202? (Stefan_P- Mar 29, 12, 0 Replies) Read this message
connection cable available ? (tony33- Mar 13, 12, 2 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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