Hayes Smart Modem 2400 Early PC Networking No AC System Only

RARE VINTAGE S-100 PMMI Communications Potomac Micro Magic Modem Model MM-103-9

Vintage Novation CAT Modem 103/212 Smart Modem Complete In Box And Turns On C3

Hayes Smartmodem 300, In Box, TESTED, mint condition, 1983

Case Modem 460/22 Untested Turns On No Power Lead Vintage Computing

Hayes Microcoupler Off-Hook Acoustic Coupler – Vintage Modem – USA

SupraModem 2400 Data Modem

Prometheus 144e PROmodem for Macintosh – External Vintage Modem – Boxed w/...