ASUS USB-AC55 Dual-band Wireless- Wi-Fi Adapter is a dual-band 802.11ac Wi-Fi adapter with a USB 3.0 connection that brings high-performance wireless networking support to desktop and notebook PCs. The USB-AC55 features a USB 3.0 connection with support for wireless data rates up to 400 Mbps at 2.4 GHz and 867 Mbps at 5 GHz with compatible routers. Suitable for use with both desktop and notebook PCs, the USB-AC55 features a dual internal antenna design for great wireless network coverage with minimal desktop clutter.