US Robotics 56K V.92 Fax Modem 5686 W/ Serial Cable - No Power Supply - Untested

US Robotics 56K External Fax Modem V.92 Model 5686 w/ Power Adapter & Extension

US Robotics 5686 v.92 56K External Modem 0701 W/ AC ADAPTER

US Robotics 56K External Fax Modem V.92 Model 5686 w/ Power Adapter

Vintage Black Dial-up US Robotics V.92 56K Faxmodem Model 5686 (Powers On)

US Robotics 56K V.92 Fax Modem Model: 5686E

US Robotics V.92 56K Fax Modem Model No.: 5686 / 64-005686-05R

USRobotics 5686 V.92 56k & 0413 33.6k External Modem vintage computing computers