Amazon.com: Hayes Optima Smartmodem 9600 baud 5110AM Modem : Electronics
From Baud to Awed: The History of the Modem | Auvik
Modem - Wikipedia
300 Baud Modem - Chapelboro.com
Upgrading to a 1200 baud modem : r/nostalgia
Modems
9600 Baud Packet Radio Modem PCB
Speeds and More Speed - VoIPWatch
From Baud to Awed: The History of the Modem | Auvik
300 Baud Master Modem | CommodoreServer.com
Modems
gopackjo on Twitter: "@JenniWrenB We had the earliest version. We could hook up with a dumb terminal and a 300 baud acoustic coupler modem. And you needed to know Unix. https://t.co/VhREUdPPCr" /