Tenext PCI Express 4-Port SuperSpeed USB 3.0 Controller Card with Molex Power and Low Profile Bracket (Fulfilled By Amazon) NEC Renesas &micro;PD720201 chipset SuperSpeed USB 3.0 supports transfer rates of up to 5Gbps Backwards compatible with USB 2.0 and 1.1 devices 4 external USB 3.0 ports with full height or low profile brackets Shipped directly from one of Amazon's warehouses in the United States FREE shipping on Amazon Prime or SuperSaver on combined eligible order