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! Application: STB,,Desktop,Laptop,,GPS,IP Camera : 8.1, 32 bit/64 bit, 8, 32 bit/ 64 Bit, 7, 32bit / 64 bit, 32 bit/ 64 bit, 10 32 bit/64 bit, Linux v2.6.1.3/ 10.7,10.8,10.9 Main Chipset: RT5572N Host interface: USB 2.0 Type A 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 () 11Mbps: 18+/-1dBm 802.11g (OFDM) 54Mbps: 15+/-1dBm less than -31dB 802.11n (HT20 MCS7), 15+/-1dBm,(HT40 MCS15),14+/-1dBm Receive Sensitivity (after antenna): 802.11a: -66+/-1dBm 802.11b: -88+/-1dBm 802.11g: -73+/-1dBm 802.11n (HT20), -70+/-1dBm;802.11n (HT40), -72+/-1dBm Security: 64/128, WPA/WPA2 (TKIP,); WAPI; Voltage Range/Current: DC 5.0V +/- 5% / less than 330mA 802.11g;3.3VDV+/- 5% less than 350mA, 802.11n,HT40 Transmission Rate: 300Mbps Type: Wireless Kind: External Application: Desktop Adapter Socket: USB Wi-Fi Supported Frequency: 2.4G & 5G Interface Type: USB2.0 Wireless Protocol: 802.11n Wireless Protocol: 802.11ac Lan Transmission Rate: ETHERNET Applicable Network Type: ETHERNET Model Number: W55 colour:Black Material:plastic Package Contents: 1 x Wireless USB Adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.