Win7/XP system needs to manually install card driver Interface type: USB3.0, Type-c3.1 two-in-one Transmission speed: 2500Mbps System support: For 11/10/8/ 7/ Vista, XP, For , Linux Use environment: operating temperature 0-85℃, relative humidity 5-90℃; storage temperature -10-95℃, relative humidity 0-90℃ support 10/100/1000/2500M Ethernet, support hot plug Colour:As shown Material:aluminum alloy Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 * Ethernet Gigabit Adapter 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.