Features: brand new and high quality Supports both 2.4GHz and 5GHz bands work. The use of wireless technology, users can freely choose one according to the surrounding environment and the terminal equipment in a working band, effectively avoid wireless interference and network congestion, wireless signal stability, speed and smooth! Need to meet the 5G 5G routing function can only be used to support. Product condition: Used(Tested before shipment). Application: STB,IPTV,Desktop,Laptop,for hdmi,GPS,IP Camera. Operating System: for Windows 8.1, 32 bit/64 bit, for Windows 8, 32 bit/ 64 Bit, for Windows 7, 32bit / 64 bit, for Windows 32 bit/ 64 bit, for Windows 10 32 bit/64 bit, Linux v2.6.1.3/ for Mac 10.7,10.8,10.9. Specifications: Main Chipset: RT5572N Host interface: USB 2.0 Type A LEDs: None Antennas: 2 built-in onboard 2.4/5 GHz PCB antennas. Operation Frequency: ISM band , 2412~2483.5MHz , 4915~5825MHz(Detail frequency range depends on country region). Typical Transmit Power (before antenna): 802.11a (OFDM) 54Mbps: 10+/-1dBm 802.11b (cck) 11Mbps: 18 + /-1dBm 802.11g (OFDM) 54Mbps: 15+/-1dBm EVM