Features: With this CF-822AC wireless receiver for desktop Internet access without pulling the network cable. 2.4GHz and 5.8GHz dual-band 650Mbps wireless rate (2.4GHz 200Mbps+5.8GHz 450Mbps). High-speed USB Wifi network adapter card, supports 802.11 a/b/g/n/ac standard . With 2 flexible 180° adjustable antennas, and there is no dead angle in the signal. Nickel-plated USB connector, wear-resistant and scratch-resistant for multi-system Win XP/7/8/8.1/10(32/64 bit); MacOS 10.9-10.15 Specifications: Item: CF-822AC Wifi Card Supports 802.11 a/b/g/n/ac standard Fit For: Desktop computer Speed: 2.4G 200Mbps 5.8G 433Mbps System: for Win XP/7/8/8.1/10(32/64 bit); MacOS 10.9-10.15 Encryption：WPA-PSK/ WPA2-PSK / WPA / WPA2 WEP Item Size：approx 136x31x12mm/5.35x1.22x0.47in Package Includes: 1x PCIe Network Card 1x User Manual 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 measurment.