1、[USB2.0 Net Interface] W21 is a highly integrated single chip MIMO, wireless LAN, USB2.0 net interface controller, which complies with wireless ultra high throughput IEEE 802.11ac draft 2.0 and 802.11n specifications. 2、[High Performance] 1200m WiFi module for RTL8812AU provides a complete solution for high performance wireless clients. 3、[Radio Frequency] Supports 2T2R baseband, 2.4G and 5G frequency bands and radio frequency, to provide you with the maximum help. 4、[WIFI Direct Function] Wifi module supports WIFI Direct function, which can easily build WIFI P2P PAN net for your convenience. 5、[Operating System] Wifi module supports for Android, for Win 8, for Win 7, for Vista, for Linux, for Win CE, for Windows XP and other operating systems. Item Type: Wifi Module Material: PCB Model: For W21 Chip Solution: For Realtek RTl8812AU Standards and Protocols: IEEE802.11a/b/g/n/ac 2T2R Working Frequency: 2.4G: 2.4000GHz～2.4835GHz, 5G: 5.150GHz～5.825GHz Working Channel: 1-13Channel Modulation Method: 802.11b: CCK (11,5.5Mbps)/QPSK (2Mbps)/BPSK (1Mbps) 802.11 a/g: OFDM 802.11n: MCS0-7 802.11ac: MCS0-9 Transmission Rate: 11n: 6.5~72.2 Mbps(20MHz Bandwidth), 13~150Mbps(40MHz Bandwidth) 11g: 54/48/36/24/18/12/9/6 Mbps 11b: 11/5.5/2/1 Mbps RF Antenna: External antenna can be connected Security: WEP, TKIP, AES, WPA, WPA2 Working Temperature: 0°C to +70°C Relative Humidity: 10-90% (Non Condensing) Operating System: For Android, for Win 8, for Win 7, for Vista, for Linux, for Win CE, for Windows XP and Other Operating Systems 1 x Wifi Module