The EDUP EP-AC1686 is a wireless dual-band USB adapter that supports the 802.11ac Wi-Fi standard. It is capable of delivering speeds of up to 1300Mbps and features advanced MU-MIMO technology and a high-gain external antenna for improved network efficiency and reduced latency. The adapter is compatible with Windows and Mac operating systems and can be easily installed using the included software. Its compact design makes it easy to use with laptops and other devices, while its flexible antenna allows for optimized signal strength and quality.