ThinkSystem 1GB 4-Port RJ45 LOM, Gigabit Ethernet Card, Twisted Pair, 1000Base-T, Server, Plug-in Card. The Intel Ethernet Connection X722 is a network controller embedded into the Intel C624 "Lewisburg" PCH chipset of Lenovo ThinkSystem servers. The controller connects to available 10 GbE and 1 Gigabit Ethernet LAN-on-motherboard.