Etekcity AC1200 Dual Band USB 3.0 WiFi Dongle / Wireless Network Adapter (2.4 GHz, 300Mbps / 5.8 GHz, 867Mbps)(Certified Refurbished) This Certified Refurbished product is tested & certified by Etekcity to look and work like-new. The product includes all original accessories, and is backed by a 90-day warranty RELIABLE STANDARDS: 802.11 ac standard - the next generation of Wi-Fi; backwards compatible USB 3.0 for speeds 10x faster than USB 2.0 DUAL-BAND: Seamlessly connects and provides lag-free video chat, HD video streaming and gaming (5.8GHz 867Mbps, 2.4GHz 300Mbps) SOFT AP MODE: Create a Wi-Fi hotspot for mobile devices when wireless networks are unavailable; We have already upgraded the driver for Windows 10, please check Etekcity Official Website to download SEAMLESSLY COMPATIBLE: Supports Windows 8.1/8/7/XP/Vista (32-bit / 64-bit); backwards compatible with 802.11 a/b/g/n devices