Astrotek USB to RJ45 Ethernet LAN Network Adapter Converter Cable 15cm The ASTROTEK 10/100 USB 2.0 fast ethernet adapter makes it easy to connect your laptop to a fast ethernet network.The design makes this adapter the most convenient and efficient way to connect a laptop or desktop computer to a fast ethernet network. With our fast ethernet adapter, you can experience the full speed of your fast ethernet network without the need for opening your PC and adding internal network adapters. • Adds a 10/100BaseT Ethernet port to a computer • Designed for use with a USB 2.0 port • Auto-sensing detects the correct network speed