This purchase is for a box of 20 USB Wifi adapters. Below is the description for one unit from the manufacturer.

The ASUS Dual-Band 300 Mbps Wireless-N USB Adapter - Adjustable Cable, WPA2, WPS is a device offering a flexible, dual-band wireless connection for lag-free streaming and high-performance networking. It has a superior antenna design for extensive wireless coverage, and contains a USB cable enabling you to adjust it for enhanced reception. A user-friendly interface utility allows you to install and use the application with ease, making this a great router both at home and on the road.