D-Link DWA-172 Wireless AC600 High-Gain USB Adapter Wireless AC600 High-Gain USB Adapter - Compatible with the IEEE 802.11 b/g/n and 802.11ac - External 3dBi omni-directional antenna - External High Gain antenna design - Provides better performance than conventional internal antenna - WPS external button designed for easy and secure setup - Ideal for applications that need external antennas - Rotatable antenna for 90 degrees of vertical and 180 degree horizontal angle - Autosenses & Adjusts Speed to conditions for Maximum Performance - IEEE 802.1x and WEP, WPA & WPA2 - Drivers for Windows 8/7/Vista/XP SP3 - Multi-language install program.