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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

Model No.
SST-EC03B (black)
SST-EC03S (silver)
Power requirement
5Vdc via peripheral 4pin power connector
Operating system support
Windows XP, Vista, 7(32bit/64bit)
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
Transmitting Speed
USB 3.0(5Gbit/s), USB 2.0(480Mbit/s), USB 1.1(12Mbit/s)

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EC03 manual
449 KB
EC03 driver download
8,813 KB
EC03 driver download
8,871 KB

  • Q. What is the length of the USB 3.0 cable between front panel and USB 3.0 expansion card?
    A: The length of USB 3.0 cable is around 650mm (25.59inches)

If the answers don't solve your problem, please email to support@silverstonetek.com. Thanks!
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