The HiRO H50304 10/100/1000 Internal Low Profile PCI Express Gigabit Ethernet Card is a truly Plug and Play device. With Windows Built in driver, users simply plug it into any of PCIe 1x 4x 8x or 16x slot and the driver will be automatically installed. Simply plug into the Gigabit Ethernet cable and get connected. Jumbo frame support, Full and half duplex support, Crossover Detection & Auto-Correction (Auto MDI/MDI-X)