Used adapter for ultra books that do not come with a LAN port. * boost the speed to 1000Mbps. **Tested download/upload: 834.85/779.87Mbps. Platform: Intel i7-7500u, 8G ram, SingTel 1Gbps fibre. Dealing: Weekdays -- AMK 1840, YISHUN 1900. Weekends YISHUN all day. Or free normal mail. Tag# USB to LAN, Asus, HP, lenovo, USB 3 to Ethernet dongle, USB 3.0 to Ethernet dongle.