This USB network adapter offers a transfer rate of up to 300 Mbps in the 5 GHz band - almost three times faster than the 802.11n standard. This allows you to use the most modern wireless networks operating in the 802.11ac standard, as well as traditional networks operating in the 2.4 GHz band. Data transfer speeds in the wireless network reach up to 866 Mbps. Compliant with the 802.11ac wireless standard and compatible with 802.11a/b/g/n wireless standards, allowing you to connect to wireless devices in both the 2.4 GHz band, with speeds up to 300 Mbps, and the 5 GHz band, with speeds up to 866 Mbps. The adapter connects to the USB 3.0, 2.0, or 1.1 port and works in all wireless network standards. If you don't have a Wi-Fi card in your computer or it's damaged, this adapter is a great solution. 5 GHz is perfect for streaming HD video and gaming. 2.4 GHz is sufficient for surfing the Internet and downloading files. Interface: USB 3.0, 2.0, 1.1 Security: WEP / WPA / WPA2 / TKIP / AES Standard: IEEE802.11ac / a / b / g / n Frequency: 2.4 GHz / 5 GHz Bandwidth: up to 866 Mbps (5G: 866M / 2.4G: 300M) Range: 15 meters Supported systems: WINDOWS XP / 7/8 / 8.1 / 10 / 11 / MAC OSX / LINUX Size: 8 x 4 x 1.5 cm