Supports 802.11ac standard- The generation of Wi-Fi Backward compatible with 802.11 /g products Ultra-fast AC1300 (866+400Mbps) wireless speed with 802.11ac Maximum to 5GHz 866Mbps or 2.4GHz 400Mbps Dual Band connections for -free HD video streaming and gaming Colour: Black material: plastic Supports Win10/8.1/8/7/xp/vista;32/64bits; OS; Linux This Dual Band Adapter delivers powerful wireless technology to your desktop or notebook computer Simply plug the adapter into an available USB port and connect to a wireless network to access a high-speed internet connection - 2.4GHz (400Mbps) or 5GHz (up to 866Mbps). And with integrated Dual Band technology Chipset:Reatek 8812BU USB:3.0 USB Wireless Speed: 802.11ac: up to 866Mbps 802.11n: up to 400Mbps 802.11g: 6/9/12/18/24/36/48/54Mbps 802.11b: 1/2/5.5/11Mbps Antenna Type:2 x 2dBi Internal antennas (2T2R) AC1300Mbps Package Contents: 1 x USB Wifi Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.