3com US Robotics 56k modem card Model 5687 Brand New

US Robotics 0584 (005687-03) 56K V.90 Internal 16-bit ISA Modem (Please Read)

Vintage 3Com U.S. Robotics 56K Faxmodem Internal ISA - Model 5687 - SEALED / NIB

USRobotics 005687-03 (00568703) 56 Kbps

USRobotics 56K-PCI Modem

3com US Robotics 56k modem card Model 5687 Open Box item

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