The EDUP EP-1689GS is a USB 3.0 to WiFi adapter that allows users to connect their devices to a wireless network. It supports the latest WiFi 5 standard, also known as 802.11ac, which provides faster speeds, greater capacity, and improved reliability compared to previous WiFi standards. The adapter can achieve speeds of up to 2400Mbps on the 5GHz band and up to 574Mbps on the 2.4GHz band.