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Wireless AC1200 Dual-band MU-MIMO USB Adapter.802.11a/b/g/n and 802.11ac Wave 2, switchable Dual band 2.4 GHz or 5 GHz; Supports MU-MIMO; Up to 867 Mbps data transfer rate in 802.11ac mode (5 GHz), up to 300 Mbps data transfer rate in 802.11n mode