1. Dual-band wireless wifi 2.4/5GHz: reduce signal interference and make smoother. 2. Bluetooth 4.2 chip, lower power consumption and more stable 3. Support 802.11AC technology: network to 433mbps. 4. High-quality circuit module board, mini body, high efficiency to avoid and abrasion, and easy to use. 5. Mini portable, easy to install and easy to use Product name: Bluetooth network card Model: RTL8821CE Wireless Technology: 802.11AC Wireless frequency band: 2.4G&5G Built-in Bluetooth: Bluetooth 4.2 Product interface: NGFF M2 Support system: Win7, Win8, Win10 Compatible models: Support notebook computers such as: , Shenzhou, , , , , Revolution, , ...etc. NGFF interface computers. As well as desktop computers, industrial control motherboards, computers, small hosts, advertising machines, machines...etc. Colour:green Material:PCB Package Contents: 5 x Bluetooth 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.