Star Tech. com 2 Port PCI Super Speed USB 3. 0 Adapter Card with SATA Power The PCIUSB3S22 2-Port PCI to USB 3. 0 Card enables you to connect USB 3. 0 peripherals to a PC through a legacy PCI host bus, which doubles the data transfer speeds when used with USB 3. 0 peripherals than would be possible with a USB 2. 0 host connection - up to 1. 3 Gbps (PCI bus limit). The card features an optional SATA power connection, which enables each port to supply up to 900m A of power to USB 3. 0 bus-powered devices. By supporting a legacy (PCI) host connection, the card adds updated peripheral connectivity, without having to upgrade to a PCIe-equipped motherboard or rely on the backward compatibility of USB 3. 0 peripherals. Guaranteed to provide reliable performance, the PCIUSB3S22 PCI USB 3. 0 card is backed by lifetime warranty and free lifetime technical support. The Star Tech. com Advantage Faster transfer rates when used with USB 3. 0 peripherals than a USB 2. 0 host connection would permit (up to 1. 3 Gbps, PCI bus limit) Suited for installation in Small Form Factor cases as well as in full profile systems Can support bus-powered USB devices