Dell Killer Xeno Pro 128MB PCI-Express Gigabit Ethernet Gaming Network Card B011-012-PX05 K146T 0K146T CN-0K146T.Series: Xeno ProDell Part Number: K146T 0K146T CN-0K146TKiller Part Number: B011-012-PX05 Specifications: Connection 1x PCI-EData rates 10/100/1000 Broadcom Gigabit EthernetNPU Freescale Semiconductor MPC8343EVRAGD, 400MHzIntegrated memory 128MB 800MHz DDR2IEEE Compatibility 802.3, 802.3u, 802.3x, 802.3zPorts RJ-45, USB 2, mic in, audio outSupported operating systems Windows XP - Vista (32-bit and 64-bit) - 7 (32-bit and 64-bit)