Fast Gigabit Ethernet Transmission Ethernet Controller By adopting Intel 82574L Ethernet controller chip, the card is compatible with Intel EXPI9301CT / EXPI9301CTBLK, providing a fast and delay-free transfer up to 1000Mbps, more responsive performance, and greater stability. Single Copper RJ45 Port Connected to Category-5 and up to 100m for meeting the demands of data center environments for servers and high-end devices, providing speed expansion for servers and delivering high-speed networking. PCI Express* 1.1. 2.5 G T/s X1 Lane is suitable for PCI-E X1/ X4/ X8/ X16 slots.