5-Pack of USB 2.0 to Gigabit Ethernet NIC Network Adapters - 20.00cm (8.00in) long - can connect any USB 2.0 compatible PC or laptop to your network. Using an RJ-45 etherport port,they connect at gigabit speeds. Backwards compatible with USB 1.x ports, these small and lightweight, portable USB Gigabit network adapters are the ideal network adapter accessories for home or office use.