Features: brand new and high quality Gigabit PCIe network card adds a 10/100/1000 Mbps / 2.5G compliant RJ45 Ethernet port to a PCI for Express client, server, or workstation, providing a convenient network interface addition or replacement. Compliant with IEEE 802.3 / u / ab standards, and with support for 9.5K jumbo frames, VLAN tagging, this Gigabit NIC adapter offers efficient. Single 10/100/1000 Mbps compatible RJ45 Ethernet port. Gigabit speed and link / activity LED & Gt; Fully compliant with IEEE 802.3, IEEE 802.3u, IEEE 802.3x and IEEE 802.3ab standards. IEEE 802.1Q VLAN tagging support and IEEE 802.3x full duplex flow control. Full and half duplex support. PXE network boot support. & Gt; Jumbo frame supports up to 9.5 Kbytes. Complies with Micro and Linux platforms. Specifications: Main controller: for Intel(R) RTL8125 Bus type: PCI for Express X1 Media interface: RJ45 Transmission rate: 10/100/1000Mbps, 2500Mbps Package Includes: 1PC x Network Card note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.