Asus USB-AC54

Maximum flexibility for maximum wireless coverage
The ASUS USB-AC54 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-AC54 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-AC54 features a dual internal antenna design for great wireless network coverage with minimal desktop clutter.

Next gen 802.11ac wireless, up to 3X faster than 2x2 wireless N adapters
Fast Wi-Fi becomes more accessible via USB, going up to 867 Mbps on the clear 5 GHz band. Using 802.11ac wireless, faster connectivity and enjoyment come to all your devices. Compared with current 802.11n, the USB-AC54 delivers up to 867 Mbps at 5 GHz, which is 3X faster than 2x2 802.11n.

Next-generation Wi-Fi on both bands
256QAM technology integrated on the USB-AC54 brings the speed benefits of next-generation 802.11ac Wi-Fi to both 2.4 GHz and 5 GHz bands. At 400 Mbps and 867 Mbps respectively, they turn the USB-AC54 into a formidable AC1300 wireless adapter. Connect the USB-AC54 to ASUS networks to attain the very highest possible Wi-Fi speeds.

USB 3.0 for full 802.11ac performance
USB 3.0 allows the USB-AC54 to pair with notebooks and desktops using a bandwidth up to ten times that of USB 2.0. It means the full advantage of 802.11ac networking is realized, as the adapter has enough throughput overhead to support much faster network speeds.