TP-Link ARCHER-T3UPLUS, Interface USB 3.0, LED, 2 External High Gain Antennas, Wireless IEEE 802.11b/g/n 2.4 GHz, IEEE 802.11a/n/ac 5 GHz, Wireless Security WEP, WPA/WPA2, WPA-PSK/WPA2-PSK, O/S Windows 10/8.1/8/7 (32/64 bit). The Archer T3U Plus receives Wi-Fi signals on two separate bands for all your online needs. Choose the 2.4 GHz band for up to 400 Mbps of surfing, emailing, and social media, or switch to 5 GHz.