For Intel 82571 controller 1.25G NIC Network Card Dual RJ-45 Port PCIe X1
Bus width :PCIe 1.0 x1. System interface type :PCIE 1.0a 2.5GT/sec. 1 x PCIe Network card. I/O Port :RJ45 2. 1 x User’s Manual. Function: Support iSCSI, PXE, VLAN. 1 x Low profile bracke. 1 x CD Driver.