The anti-deformation baffle is made of high-strength metal material to prevent deformation and be more firm. Alloy heat sink, using high thermal conductivity alloy heat sink, efficient heat dissipation, so that the network card is always at a normal temperature, and the operation is more stable. Fully shielded 8-pin network port, gold-plated flat pins, wider connection area than round pins, and more stable transmission. Note: PCI interface is not supported Master chip: RTL8125BG Chip Bus interface: PCI-EX1 (compatible with X1/X4/X8/16) Expansion interface: RJ-45 Interface rate: 2.5Gbps Transmission rate: 100/1000/2500Mbps Compatible system: Windows/Linux/ESXi/ROS Colour:black Material:PCB+Metal Package Contents: 1 x PCI-E Network Card 1 x Low Profile Bracket 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.