Item Type: PCIe Ethernet Card Material: Printed Circuit Board Bus Type: PCI E Transmission Rate: 10/100/1000/2.5Gbps Data Rate Automatic Detection Full Duplex / Half Duplex: Full Duplex / Half Duplex Self Adaption Network Port Type: RJ45 Applicable Network Type: Fast Ethernet Applicable Model: Desktop Computer Main Chip: RTL8125 Network Standards: IEEE 802.1P, IEEE 802.1Q, IEEE 802.2, IEEE 802.3ac, IEEE 802.3az, IEEE 802.3x, IEEE 802.3z, IEEE 802.3ad Driver Support: Suitable for Win 10, 8.1, 8, 7, for Win Servers 2003, 2008, 2012, for Win ME, 98SE, 2000, XP, for Vista, for Linux, for OS X Laptop, for DOS. Product Size: Approx. 70 x 55mm / 2.8 x 2.2in ( Manual Measurement, Slight Error May Exist ) 1、Stable Transmission: This PCIe ethernet card supports data rates of up to 2.5Gbps. Combined with the latest 2.5GBase T technology, which ensures more stable transmission. 2、Ethernet Port: This PCIe network adapter fits any PCIe x1, x2, x4, x8 or x16 socket. You can add a 10/100/1000/2500Mbps Ethernet port to any PC via the PCIe slot. 3、Heat Dissipation: This 2.5GBase T PCIe card comes with standard bracket and low key bracket for desktop, workstation, server and mini tower computer. Excellent heat dissipation can rapidly reduce the temperature and maintain the stability of network transmission. 4、Widely Compatible: This PCIe network card is suitable for Win 10, 8.1, 8, 7, for Win Servers 2003, 2008, 2012, for Win ME, 98SE, 2000, XP, for Vista, for Linux, for OS X Laptop, for DOS. 5、Self Adaption: This PCI Express network adapter supports full duplex and half duplex self adaption. 1 x PCIe Ethernet Card 1 x Baffle 1 x Screw