Serial (RS-232) Dial-Up Modems
45 Results
IBM 7507-017 Modem
$50.00Free shippingU.S. Robotics 56K V.92 External Serial Data Faxmodem USR5686D, NEW (please read)
$30.00$12.06 shippingSupra FaxModem 288 External Dial-Up RS-232 Serial Modem 28,800 bits/second bps
$14.990 bids$15.70 shippingEnding Friday at 1:12PM PDT2d 9hSignalman Modem Anchor Automation Mark II Atari Vintage Gaming
$16.00$9.00 shippingUSRobotics 56K Business Modem 3453/3453C W/ Power Adapter and Modem Adapter
$40.00$8.95 shippingHayes 2000US ULTRA 96 Smartmodem 9600 V-Series with Orig Power Supply Computer
$69.00$20.05 shippingNew US Robotics 000839-09 Sportster External 33.6 Faxmodem
$12.99$9.50 shippingCascade RS-232 56 K Baud Low Power Modem for harsh conditions - Used
$19.99Free shippingOPEN BOX: 3COM US Robotics 56K v90 Fax Modem for MAC model: 5689
$12.95$10.80 shippingUS Robotics 839 Sportster External 33.6 V.90 Serial Data Faxmodem 1997 Vintage
$19.76$9.35 shippingVintage OrchidFAX and DATA Modem for Macintosh AM-100-00 EL4142
$79.99$20.30 shippingOPEN BOX: 3COM US Robotics 56K v90 Fax Modem for MAC model: 5689
$32.95$13.20 shippingNOS Boxed 5362US HAYES OPTIMA 56K External MODEM H08-02892 w/ all accessories.
$98.00$10.97 shipping3 watchingUS Robotics Courier V.Everything with V.34 External Modem
$35.00$10.80 shippingDiamond Supra Express 56k Modem
$25.00$6.72 shippingGE Security 420173001 External Industrial Dial-Up Modem with 1A Power Supply
$99.99Free shippingDial Up internet modem external GVC SF-1156V/K4D, Serial (RS-232), TAIWAN
modem, dial up modem, rs 232 +modem, external modem,$36.75$17.85 shippingUSED WORKS GOOD US ROBOTICS V.92 MODEM MODEL 5686
$18.88$8.00 shippingUS Robotics Fax Modem Sportster with X2 56K - 0459
$14.99$8.45 shippingUS Robotics 839 Sportster External 33.6 V.90 Serial Data Faxmodem 1997 Vintage
$19.99$13.20 shippingMultiTech Systems MT2834ZDXB 33.6 Kbps Data/Fax Modem
$35.00$11.60 shippingUS ROBOTICS Sportster 33.6 Faxmodem 3COM 000839-09
$45.50Was: $65.00PRACTICAL PERIPHERALS 336 MiniTower 4719US External Phone Modem
$25.95$7.00 shippingPractical Peripherals 14400FXSA External Modem V32Bis-w/Box, Power Supply-NICE
$79.50$14.35 shippingAyantra IML 560 Low Power 56 Kbps Industrial Modem
$9.59Was: $11.99$8.85 shippingDial UP Internet modem external GVC SF1156V/RF Serial port (RS-232), TAIWAN
$36.75$17.85 shippingHAYES 5150AM ACCURA 14400 + FAX144 EXTERNAL MODEM. New, orig box, docs & softwar
$69.00$14.25 shippingUS Robotics 56k External Modem Sportster 5686-83 w Serial Cable Power Supply
$25.00$16.15 shippingZyXEL Omni 56K Mini EE Dial-Up Modem Full Package
$19.99$33.00 shippingBenefits charitySWANN SMART V.90 56K SERIAL DIAL-UP MODEM DATA FAX RS232 PORT INTERFACE Vintage
$81.05$42.89 shippingSWANN SMART II V.90 56K SERIAL DIAL-UP MODEM DATA FAX RS232 PORT Vintage
$81.05$42.89 shippingNew! Genius 56k v92/v90 External Modem GM56EX with 240v UK PSU
$51.62$41.41 shippingUSRobotics 4X2USA-33236-M5-E V.90 56K Standard & x2, External Sportster FaxMo...
$65.00$12.75 shipping
