Features: 1.2.5Gbps Network: This PCIe network card adopts I226 V chip to provide up to 2.5Gbps and higher data transmission for gaming, live broadcast and download. 2.Widely Compatible: This Gigabit Ethernet card is downward compatible with 2.5Gbps/1Gbps/100Mbps, suitable for Win 7/8/10/11 and for OS X Laptop. 3.Aluminium Alloy: This RJ45 network card adopts premium aluminium alloy to reduce power loss of components, and fast heat dissipation keeps the stability of network transmission. 4.Multi Purpose: This PCIe network adapter comes with low profile bracket, ideal for desktop, workstation, server, mini tower crane and other chassis. 5.PCIE Interface: This 2.5G network card supports motherboard with X1/X4/X8/X16 slot, PCI E gold plated pin with nice electrical conductivity and highly resistant to oxidation. specification:Item Type: PCIe Network Card Material: Aluminium Alloy Color: Black Chip: I226 V Ports: Dual 10/100/1000/2500Mbps Rj45 Network Ports, Supporting Network Self Adaptation Network Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab, IEEE802.3az, IEEE802.3bz Compatible Slot: PCIE 16X/8X/4X/1X Network Environment: 10/100/1G/2.5G Compatible System: Suitable for Win 7/8/10/11 and for OS X Laptop. OS Systems Application Scope: Desktop PackageList:1 x PCIeNetworkCard 1 x Low Profile Bracket 1 x Screwdriver 1 x Screw 1 x Drivers CD NotePlease turn off computer before operation