Quick overview from the supplier:
D-Link DWA-185/IL/A1A Wireless AC1200 Dual-band MU-MIMO USB Adapter, 802.11a/b/g/n and 802.11ac Wave 2, Dual band 2.4 GHz or 5 GHz, MU-MIMO, up to 867 Mbps transfer rate in 802.11ac (5 GHz), up to 300 Mbps transfer rate in 802.11n mode
