This is a Fast Ethernet PCIe x1 network interface card with a single open ST port that complies with IEEE 802.3 standards. It is based on an Intel 82574 chipset and is compatible with variety of different applications and operating systems, including Windows, Linux and Unix-like systems. Providing 100Mbs of network speed, it fully supports high-end servers and a variety of networking applications. In addition, this card supports high level VLAN filtering. The single ST port accommodates multi-mode, providing a reach up to 2km. This product includes both half-height and full-height brackets. All of our network interface cards are 100% compliant, and offer a cost effective solution for all of your network upgrade needs.