The HP NC340T PCI-X 4-port 1000T Gigabit Server Adapter features four 10/100/1000T Gigabit Ethernet ports on a single card, saving valuable server I/O slots for other purposes. The four-gigabit ports make the NC340T provides the greatest bandwidth in an NC-series Ethernet adapter, ideal for virtualization, server consolidation, network segmentation, & other Pro Liant server applications requiring maximum throughput & port density. Each port uses a PCI-X 64-bit/133 M Hz interface behind a PCI-C bridge. For best performance, install the adapter in a 64-bit/133 Mhz slot. The 10/100/1000 Mb/s capability enables the NC340T to be used in Ethernet or Fast Ethernet legacy wiring plants, as well as for Gigabit environments. Tested & proven to meet demanding HP standards, the NC340T provides full driver support on a wide variety of Pro Liant servers.