Features: Dual-band DW1820A wireless wifi card 2.4G/5GHz: reduce signal interference and make the network smoother. Support 802.11ac/b/g/n technology: network speed up to 1200mbps. Support Bluetooth-compatible: 4.1 backward compatibility 4.0/3.0/2.0 for desktop all-in-one machine, mini advertising machine, industrial computer equipment with MINI PCIE slot can also be used. High performance BCM94352ZAE main control chip: stable and fast-running speed. Specifications: Model:DW 1820A DW1820A Chipset: BCM94352ZAE IEEE-standard:802.11ac/b/g/n Interface:mini pcie NGFF-M2 Frequency: 2.4G/5GHz Bluetooth-compatible:4.1 Speed:2.4G-300Mbps, 5G-867Mbbps Support: Windows7 8 10 64bit Package Includes: 1Piece x Wireless Network Card note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurme