Vktech Triangle Tripod Style 300Mbps High Power Wireless Networking USB Adapter Operating distance of up to 300ft indoor and up to 900ft in open space Data transfer rate of up to 300Mbps (downlink) and 300Mbps (uplink) Supports USB2.0 interface, backward compatible to USB1.1 and 1.2 64/128-bit WEP (wired equivalent privacy), TKIP, AES 2.400GHz ISM Frequency band modulation method: QPSK/BPSK/16-QAM/64-QAM;Supports ad-hoc and infrastructure modes;Supports USB2.0 interface, backward compatible to USB1.1 and 1.2