Silverstone Tek EC04 PCI Express Card with 2X USB 3.0 External Ports and Internal 19 Pin Dual Port Connector
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.