The ST1000SPEXD4 PCI Express Dual-Port Gigabit Network Card lets you add two gigabit Ethernet ports to a client, server or workstation through a single PCIe slot. Each port provides 10/100/1000 Mbps capable Ethernet and is fully compatible with IEEE 802.3/u/ab standards. Suitable for any standard PCI Express-enabled system, the 2-port Ethernet card supports full-duplex flow control for maximum data transfer speeds of up to 2000 Mbps - an ideal 2-port NIC for setting up dual-homed, or multi-homed host configurations providing added security to corporate networks. The dual-port server adapter is compliant with the PCIe 2.0 standard and features support for Jumbo Frames and 802.1q VLAN tagging as well as Wake on LAN (WoL). The adapter includes an optional low-profile / half-height bracket that can be used for installation into a standard or small form-factor computer chassis.