The Rosewill model RC-508 4-Port USB 3.0 PCI Express Card is a new, sealed unit designed for expanding the number of USB 3.0 ports on a PC. With a maximum data rate of 5Gbps, this wired card is compatible with universal brands and features four ports for efficient connectivity. The PC card type IV form factor allows for easy installation on a PCI Express port, providing a convenient solution for adding more USB 3.0 interfaces to your computer system.