1. Allow users add wireless N 600Mbps (2.4GHz 300Mbps and 5GHz 300Mbps) dual band WiFi network adapter with WiFi stereo adapter on desktop PCs for online gaming, file downloading, online phone call, online video call and HD video streaming. 2. Based on qualcomm atheros network adapter AR946x, will works on most AMD, Intel, and ARM platform PCs. With 2X2 MIMO and Transmit Beamformee WiFi technology, will ensure WiFi connection stability and reception range. 3. IEEE 802.11N standard design, will compatible with 802.11 ax/ ac/ n/ b/ g/a WiFi Router and AP (Access Point). Comply with 64-128 WEP, WPA, WPA2, WPA3, WPA-PSK, WPA2-PSK, TKIP, AES WiFi encryption, will protect users network privacy. 4. Built with WiFi stereo adapter, will allow users get high performance, low latency wireless audio signal tranmisstion such as WiFi headsets, WiFi speakers, WiFi soundbars, WiFi audios systems. 5. System Requirements: Plug and Play on Windows 11, 10, 8.x (32/64bit) and Windows Server 2012, 2012R2, 2016, 2019, 2022. Need to Install Driver on Windows XP, 7 (32/64bit) and Windows Server 2003, 2003R2, 2008, 2008R2 (32/64bit). Linux driver ATH9K. 6. Equipped with 2X 3dBi dual band WiFi antennas will enhance wireless network reliability and reception range. Low profile bracket and full height bracket inside, will works on both slim PCs and standard size PCs. PCIE X1 interface design, will works on motherboard PCIE X1, X2, X4, X8, X16 slot. ATTENTION???1. Users must make sure Desktop PCs have 1X empty PCIE slot and USB 2.0 header before purchase. 2. Slim PCs users need change to low profile bracket by hand.