DualBand WiFi and Bluetooth Adapter (RTL8821CU) 2.4GHz and 5.8GHz DualBand WiFi Chip: RTL8821CU Supports IEEE 802.11 a/b/g/ac 5.8GHz up to 433 Mbps; 2.4GHz up to 150 Mbps 5.8GHz ideal for HD video streaming and lag online gaming; 2.4GHz suitable for web surfing, music, and online chat Driver Setup Builtin driver software; insert card and the driver installs automatically to enable WiFi Useful when the computer has no internet access or cannot read a CD 2in1 WiFi and Bluetooth Dual antennas for stronger signal WiFi: Works with Windows 7/8/8.1/10/XP; plug and play Vista/OS: requires driver via mini CD (included) Bluetooth: Compatible with Windows 7/8/8.1/10; not compatible with Vista/XP/other OS Blue LED indicator flashes when active AP Mode Support WiFi transmitter that can convert a wired network to WiFi, allowing mobile phones, tablets and laptops to connect wirelessly Use scenarios Scenario 1: Upgrade a desktop or laptop that lacks WiFi to a reliable dualband connection for smooth HD video streaming and responsive gaming. Scenario 2: Share a wired Ethernet connection wirelessly by enabling AP mode, so smartphones, tablets and laptops can connect without physical cables. Scenario 3: Add Bluetooth connectivity to Windows 7/8/8.1/10 devices to pair peripherals such as keyboards, mice, headphones (subject to OS compatibility).