This is a gigabit Ethernet PCI network interface card with dual RJ-45 ports that complies with all IEEE 802.3 standards. It provides a high bandwidth 1GbE network speed that fully supports high-end servers. In addition, this supports high level VLAN filtering. Based on either the Intel 82541PI or Realtek RTL8169 chipset, it is compatible with Windows, Linux (including Mac OSX), FreeBSD, and VMware operating systems. The dual RJ-45 port slots operate over copper patch cable, allowing an operating distance of 100m. Our network interface cards are 100% compliant for all of your networking needs. Now you have a cost effective solution to your network upgrade needs. With our certification test program, we can guarantee your product will work right the first time.