Add high-speed Wireless-N connectivity to a desktop or laptop system through USB 2.0 USB 2.0 300 Mbps Mini Wireless-N Network Adapter 802.11n 2T2R Wi Fi Adapter USB Wireless Adapter N300 Wireless NIC USB Wi Fi Dongle 802.11n USB Wireless LAN Card Extremely compact design Backward compatible with 802.11b/g (11/54Mbps respectively)