Feature: 1. 2.5Gbps High Speed: Network card uses for I226 V chip with ultra high speed 2.5Gbps, providing faster data transfer speed for gaming, live streaming and downloading in bandwidth demanding tasks. 2. PCIE Interface Universal: PCIE network interface card supports the use of motherboards with X4/X8/X16 card slot interface, PCIE gold plated pin, good conductivity, strong oxidation, faster and more stable transmission. 3. Fully Compatible: 4 port ethernet network card is seamlessly backward compatible with 2.5Gbps/1Gbps/100Mbps, supporting for Windows 7/8/10/11, for OS X and other mainstream systems. 4. Heat Dissipation: Network card is made of aluminum alloy, which can reduce the power loss of components and excellent heat dissipation, which can quickly cool down and keep the stability of network transmission. 5. Wide Range of Uses: PCIE Network Interface Card with thin bracket to meet the needs of different chassis such as desktops, workstations, servers, mini towers, etc. Specification: Item Type: 4 Port RJ45 Gigabit Ethernet Card Material: Aluminum Alloy Color: Black Chip: for ASM1806, for Inter I226 chip Interface: 4 x 10/100/1000/2500Mbps RJ45 Network Interface, Support Network Adaption Network Standard: IEEE 802.3bz (2.5GBASE-T) IEEE 8023ab 1000BASE-T Gigabit Ethernet IEEE802.3u 100BASE-TX Fast Ethernet IEEE 802.3i 10BASE-T Network Standard IEEE 802.3x Full Duplex and Flows Control lEEE 802.3ad Link Aggregation for Parallel Links IEEE802.1Q VLAN, IEEE 1588 IEEE 802.3az Energy Efficient Ethernet Compatible Slots: PCIE 16X/8X/4X Network Environment: 10/100/1G/2.5G Compatible System: Support for Windows 7/8/10/11, for OS X Mainstream System Scope of Application: Desktop . Package List: 1 x Network Card1 x Thin Bracket1 x Screwdriver1 x Screw Note: Please turn off your computer before proceeding