The correct driver prevents frequent network disconnections and sudden drops in internet speed.
A “450Mbps Wireless-N” USB adapter is almost always based on one of a few common chipsets. Knowing your chipset can help you find a driver even when the brand name is unknown. 450m Wireless-n Mini Usb Adapter Driver Download
Your computer might not recognize it at all. 450m Wireless-n Mini Usb Adapter Driver Download