FEATURES Supports 802.11ac standard- generation of Wi-Fi Backward compatible with 802.11 a/b/g products Ultra-fast AC1200 (866+300Mbps) wireless speed with 802.11ac External two 2dbi antenna Chipset: RTL8812 Ultra-fast 866Mbps+300Mbps wireless speed with 802.11ac Dual Band connections for lag-free HD video streaming and gaming External 2 antenna DESCRIPTION The AC1200 Dual Band Adapter delivers powerful wireless AC 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 secure, high-speed internet connection - 2.4GHz (300Mbps) or 5GHz (up to 866Mbps). And with integrated Dual Band technology, you'll have reduced Wi-Fi interference to maximize throughput for faster streaming, gaming, and Skype calls. Maximum to 5GHz 866Mbps or 2.4GHz 300Mbps Dual Band connections for lag-free HD video streaming and gaming Easy wireless security encryption Supports Windows 8.1/8/7/XP 32/64bit, Linux / OS SYSTEM REQUITEMENT one USB3.0 port. Windows XP / Vista / 7 / 8 / 8.1 (32/64bits)/LINUX/ color: Black material: plastic Package Contents: 1 x Network Card 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.