The IBM NetXtreme I Quad-Ports network adapter by Broadcom is designed for System x servers. It can provide 1Gbps data transfer speeds and is compatible with 10Base-T, 100Base-TX, and 1000Base-T Ethernet standards. This network adapter uses the PCI Express x4 interface for high-speed connectivity. It has four ports, allowing for multiple connections and increased network bandwidth. The IBM NetXtreme I Quad-Ports network adapter is a reliable and efficient solution for expanding network connectivity on System x servers.