Add dial-up internet or fax machine support to your computer with this hardware-based USB 56k Modem from Startech (USB56KEMH)! This device uses it's hardware rather than relying on your computer's hardware to do the work so it minimizes the load on your system's resources. The devices supports traditional 56k speeds and, while it is best used to support a fax machine through your computer, you can also use it as a 56k backup internet connection. It connects to your computer via USB and supports both Windows and Mac OS computers. Hardware Based 56K USB Modem. Add dialup Internet access and fax modem support to your computer through USB - External V.92 56K USB Fax Modem.