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

US Robotics USR5638 Fax Modem 56 Kbps V.92 PCI-Express LOW PROFILE BRACKET

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

USRobotics USR5699B 56K Modem PCI

New US Robotics USR5610C Model 5610C Pro Modem Card

USRobotics 3Com 3CP5699A Computer Internal Modem Card PCI 56K New Genuine

USRobotics 5610C 56K Performance Pro Modem Card (USR5610C) v.92 .90

USRobotics 005687-03 (00568703) 56 Kbps