Key selling points:
Based on the model number , you are likely referring to the Ergotech 300Mbps Wireless N USB Adapter (often used to connect desktops or older laptops to Wi-Fi). ergotech erw300n driver
You might be tempted to let Windows Update fetch a generic "PCI Serial Port" driver. While that might allow basic detection, you will lose critical functionality: Key selling points: Based on the model number