brand new and high quality Atheros AR9223 PCI interface 300M desktop wireless card. The chip is the AR9223. Support B / G / N frequency band. Power 100MW Atheros 802.11N 300M wireless network card, work in 2.4G frequency, point to point measured speed of 90M or more (bidirectional to 180M), is to do long-distance high-bandwidth transmission of the best choice. This card supports 4.0X or later versions of the ROS Basic support for multiple systems: for Windows XP 32/64 Win7 32/64 Win8 32/64 / WIN10 WIN7 WIN8 WIN10 support shared WIFI Main feature: Supports 2.4G IEEE 802.11n transmission standard Support 2x2 MIMO multiple space transmission technology 2.4GHz band data transmission services Data throughput exceeds the 802.11g standard by a factor of ten Supports up to 300Mbps data transmission Supports transmit power adjustment Support dynamic selection frequency 2 U.FL antenna interfaces The maximum output power of 100mW, MIMO total output power of 200mW. PCI interface: 70 Antenna Gain:6DB Quantity:1Set