The Unitek Y-7301 is a reliable 2-port USB 3.0 PCI Express expansion card designed to enhance connectivity on desktop systems lacking sufficient high-speed USB ports. Featuring the proven NEC UPD720200 chipset, it delivers SuperSpeed USB 3.0 performance at up to 5Gbps per port while maintaining backward compatibility with USB 2.0 and 1.1 devices. Compliant with PCI Express Base Specification 2.0 and utilizing a PCIe x1 bus interface, this card integrates seamlessly into modern motherboards. It adheres to xHCI Revision 0.95 for optimal driver support across Windows, Linux, and macOS. Each port supports up to 900mA power delivery, suitable for powering most USB peripherals. The card ships with both standard full-height and low-profile brackets for flexible installation in various PC cases. NEC UPD720200 chipset PCI Express 2.0 x1 interface 2x USB 3.0 Type-A ports (5Gbps) Max 900mA per port Supports USB 3.0/2.0/1.1 Includes low-profile bracket