U.S. Robotics 5686G Data/Fax Modem - Serial - 56 Kbps - U.S. Robotics 5686G Data/Fax Modem - U.S. Robotics 5686G Data/Fax Modem - Serial - 56 Kbps - US ROBOTICS 56K U SERIAL CTLR MODEM EXT SERIAL FAXMODEM - 5686G Data/Fax Modem - AC Power Supply Unit - RJ-11 Telephone Cable (7 ft) - Quick Install Guide - CD-ROM - Item-Type: - Data/Fax Modem. . Item-Part-No#: USR5686G. Manufacturer Warranty: 2 Year - New - U.S. Robotics 5686G Data/Fax Modem - Serial - 56 Kbps