This PCIe 10G network card allows users to expand dual 10G network ports on desktop computers or servers, providing a high-speed transmission rate of 10Gbps. It serves as an excellent high-speed networking solution for gamers who prioritize stable and ultra-fast connectivity. Controller for X540; Bus Type PCI Express X8, 5.0GT/s; System Interface Type PCIe v2.1 (5.0 GT/s); Data Transfer Rate per Port 10GbE/1GbE/100Mb; Speed and Slot Width 5.0 GT/s, x8 ; Power Consumption 12.5 W; NC Sideband Interface; Jumbo Frame Support Supported Interfaces 100Base-T, 1000Base-T, 10GBase-T for Virtualization Technology Support On-Chip and Traffic Management Flexible Port Partitioning Virtual Machine Device Queue (VMDq) PCI- -IOV Support * VMDq, -IOV Ethernet over Fibre Channel MACsec IEEE 802.1 AE IEEE 1588 for Intelligent Offloading Ethernet Storage iSCSI, FCoE, NFS Operating Temperature 0 ~ 55 (32 ~ 131) Storage Temperature -40 ~ 70 (-40 ~ 158 ) Storage Humidity 90% non-condensing relative humidity at 35 System Requirements FreeBSD, Linux, ESXi Win 7/ Server2012/ Server 2008/ Win 8/Win 8.1/Server 2016/Win 10 (PI40R21) Color: As Shown Material: Plastic+Metal Package Contents: 1 * Gigabit Network Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.