AR9271 is an IEEE 802.11b/g Wireless USB Adapter. It provides users the capability to launch IEEE 802.11b/g wireless network at 150 Mbps in the 2.4GHz band, compatible with IEEE 802.11b/g wireless devices at 54 Mbps. AR9271 is capable of multi, MIMO-based 802.11n and available with reference to network, PC and consumer electronics markets. Chipset: Atheros AR9271 Standards: IEEE 802.11b/g Data Rate: 802.11b: up to 11 Mbps 802.11g: up to 54 Mbps 802.11n: up to 150 Mbps Supported OS: Windows 7/8/10 32/64-bit, Linux, Linux Interface: USB 2.0 Antenna: 3 dBi 2.4G Hz antenna Frequency Range: 2.412 - 2.483 GHz Channels: 1-11 channels (North America), 1-13 channels (General Europe) Security: 64/128, 802.1X support, Wi-Fi access (WPA), WPA-, WPA II- Weight: 14.0 g / 0.03 lb (Adapter Only) Dimension (L x W x H): 7.6 x 2.6 x 1.2 cm / 3.0 x 1.02 x 0.47 inches Color: Black Material: Plastic Package Contents: 1 x Wireless USB WiFi 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 to be a little different from the real thing. The measurement allowed error is +/- 1-3cm.