The TRENDnet Wireless N Speed USB Adapter is a device that allows you to connect your desktop or laptop computer to a wireless network using a USB port. This adapter supports the IEEE 802.11n wireless standard, which provides faster speeds and longer range compared to older wireless standards like 802.11g.

To make this adapter work with your Windows computer, you need to install the appropriate Windows driver. The driver ensures that the computer's operating system can communicate with the USB adapter, enabling it to connect to wireless networks.