The FEC W-Client 802.11g USB Adapter (3887A) is a wireless USB adapter that supports the 802.11g Wi-Fi standard, allowing devices to connect to wireless networks. This specific model, identified by the part number 3887A, provides wireless connectivity for desktop or laptop computers, typically through a USB port, to connect to Wi-Fi networks operating on the 2.4 GHz band. The 802.11g standard supports wireless speeds up to 54 Mbps.

The Windows driver for this device ensures that your operating system can communicate with the hardware and use it to connect to wireless networks. Without the proper driver, your computer might not recognize the device or be able to access Wi-Fi networks.