The RF WIFI-AC 1200M is an AC1200 USB adapter with selectable Dual Band Wi-fi enabling data transfer speeds of 300 Mbps at 2.4 GHz and 867 Mbps at 5 GHz. Compatible with 11ac Wave 2 MU-MIMO routers. Older laptops or PCs can be with the Edimax Adapter for a MU-MIMO device can be upgraded.Fast data transfer with 802.11acThe RF WIFI-AC 1200M enables fast 802.11ac Wi-fi - that's about three times faster than 802.11n. This turns PCs and laptops into fast 802.11ac Wi-Fi devices for high-performance streaming of videos and data.Dual BandDual band use results in a better performance and greater flexibility of Wi-fi-enabled devices.The 2.4 GHz band supports speeds of up to 300 Mbps. Operating at 5GHz gets you up to 867 Mbps.Use the 2.4 GHz band for checking your emails and browsing the web, and the way less buzy 5GHz for content streaming and playing online games.11ac Wave 2 supportThe latest 11ac Wave 2 MU-MIMO (Multiple User - Multiple Input Multiple Output) technology comes with four strea