ITEM NAME:4 Ports PCI-E USB 3.0 Express Card, Mini PCI Express 3.0 Hub Controller Adapter Description: Two rear USB ports,1 set of front row stitches. With 4 phase 8A power supply module,One-to-one power supply design. Each mouth has exclusive 2A power supply,separate burn protection for each bite. No external power cord. Optional semi-premium board interface speed: 5Gbps*4 Slot: pci-e X1 Interface :USB 3.0 *4 Specification: Material:Plastic&Metal Size Chart: Size: Approx. 120 x 70mm/4.72 x 2.75inch Package Includes: 1 Piece PCI-E Serial Port 1 Piece Screw 1 Piece CD Note: Please check the details and make sure it will meet your need before purchase. SKU: ALU0035545277014262.Two rear USB ports,1 set of front row stitches. 1 Piece PCI-E Serial Port. 1 Piece Screw. 1 Piece CD. People always bought together with.