iKross 2.4G / 5G Dual Band Wireless AC1200 USB 3.0 WiFi Adapter for Windows XP/Vista / 7/8 (32/64 bits), Linux, MAC OS (867Mbps Black) Uses IEEE 802.11ac (Draft) wireless technology, backward compatible with 802.11a/b/g/n products. Supports dual-band technology, 2.4GHz (802.11n) up to 300Mbps or 5GHz (802.11ac) up to 867 Mbps. Supports USB 3.0 for high speed transmission on your laptop or desktop. Backward compatible with USB 2.0 / 1.1. WPS setup button can quickly and easily establish a fast, secure home network. Supports Windows XP / VISTA / 7 / 8 (32/64 bits), Mac OS 10.4~10.9 and Linux kernel 2.6.18~3.10.