SKU: SST-ECU04-E Category:

Expansion Cards

  • Includes ReDriver ASIC chips for overcoming 1 meter cable length limitation*
  • Includes USB 3.1 internal 19pin connector
  • PCI-E Gen 2.0 x2, throughput up to 10Gbps
  • Compliant with eXtensible Host Controller Interface (XHCI) specification Revision 1.1
  • Compliant with USB Attached SCSI Protocol (UASP) Revision 1.0
  • Includes optional low profile slot cover for supporting low profile cases

The SilverStone ECU04-E is a PCI-E Gen 2.0 x2 expansion card with one internal 19pin USB 3.1 connector (supporting two ports). It adds two redriver chips over the original ECU04 design for vastly improved performance over longer cable connections. This ensures dual 10Gbps bandwidth transfer rate can be maintained for up to 2 meters* compared with just 1 meter per USB 3.1’s specified limitation. The ECU04-E is also backwards compatible with USB 3.0/2.0/1.1 and supports UASP (USB Attached SCSI Protocol) for enhanced performance. For operating systems with XHCI (eXtensible Host Controller Interface), the ECU04-E will easily install without the need for any drivers because it also supports XHCI. For those looking to upgrade or add additional USB 3.1 ports or devices to their computer, the ECU04-E is a great starting point.


Model No. SST-ECU04-E
Power requirement 5V via SATA 15pin power connector
Form factor Low profile – PCI-E 2.0 x2 (10Gbps)
USB Ports Internal 19pin connector for dual USB 3.1 ports
USB 3.1 controller ASMedia ASM1142
ReDriver ASIC Pericom PI3EQX1002B
Transmitting Speed USB 3.1 (10Gbps), USB 3.0 (5Gbps), USB 2.0 (480Mbps), USB 1.1 (12Mbps)
Power Management Support USB 3.1 and USB 2.0 link power management
Current protection Support over current detection and protection
Operating system support Windows 7 (32bit/64bit)**, 8/8.1/10 (32bit/64bit)***, Ubuntu/Linux/Mac OS****
Extra UASP function