The LevelOne WNC-0305USB is a USB wireless network adapter. It allows you to connect your computer or device to a wireless network using a USB port, and it supports wireless networking standards like 802.11b/g/n for Wi-Fi connectivity. The adapter typically provides a convenient way to upgrade a desktop or laptop that doesn't have built-in Wi-Fi functionality or if you're replacing an old or malfunctioning Wi-Fi card.

The Windows driver for this device is required for your computer to recognize and interact with the adapter properly, enabling it to connect to Wi-Fi networks. Without the correct driver, the adapter won't work, and your system won't be able to establish a wireless connection.