Startech com usb 2 0 to 10 100mbps ethernet adaptors startech com usb2100 p with this usb 2 0 to 10 100 mbps network adaptor from startech com you can add a fast ethernet port to your laptop or desktop computer through usb p p this compact usb network adaptor offers a dongle design with a built in cable to avoid cramped connections making it a perfect solution for adding wired ethernet connectivity to your desktop without opening the case or to replace a failed onboard network adaptor o