Features: 1.Support 802.11 wireless protocol, 802.11i security, receiving and sending filtering, error recovery and quality of service (QoS). 2.Realizes half‑duplex OFDM, CCK and DSSS baseband processing, supports 20MHz and 300Mbps 40MHz channel operation up to 130 Mbps, and IEEE802.11a/b/g data rates. 3.Supports two simultaneous transmission streams, using two integrated transmit and receive chains to achieve high throughput and range performance. 4.Integrated multi?protocol, baseband processor, analog?to?digital converter and digital?to?analog converter (ADC / DAC) in a complete CMOS device. 5.2x2 MIMO radio transceiver and PCI interface, suitable for low power consumption and small size applications. specification:Item Type: Wireless Network Card Chip: AR9220 Speed: 300Mbps Interface: PCI Status: Dual frequency 2.4ghz / 5ghz Standard IEEE: 802.11a/b/g/n Supported Operating System: for Windows XP / 7/8/10/ROS PackageList:1 x Network Card2 x Antenna1 x Screw NotePlease note that for ROS system, we do not have technical support, you can search for information about this knowledge on your browser.