Serial (RS-232) Dial-Up Modems
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43 Results
USRobotics 56Kps Technology Business Modem 3453C With Power Adapter
$23.99Free shippingOnly 1 left!Supra FaxModem 288 External Dial-Up RS-232 Serial Modem 28,800 bits/second bps
$9.990 bids$8.02 shippingEnding Friday at 7:13PM PDT2d 18hSignalman Modem Anchor Automation Mark II Atari Vintage Gaming
$16.00$9.00 shippingIBM 7507-017 Modem
$50.00Free shippingSignalman Modem Anchor Automation Mark II Atari Vintage Gaming
$16.99Estimated delivery dateEst. delivery Sat, Jun 1Was: $19.99or Best OfferCascade RS-232 56 K Baud Low Power Modem for harsh conditions - Used
$19.99or Best OfferFree shippingUS Robotics Courier V.Everything with V.34 External Modem
$35.00$10.80 shippingNOS Boxed 5362US HAYES OPTIMA 56K External MODEM H08-02892 w/ all accessories.
$98.00$10.97 shipping3 watchingHayes 2000US ULTRA 96 Smartmodem 9600 V-Series with Orig Power Supply Computer
$69.00$20.05 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 shippingUSED WORKS GOOD US ROBOTICS V.92 MODEM MODEL 5686
$18.88or Best Offer$8.00 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 shippingPRACTICAL PERIPHERALS 336 MiniTower 4719US External Phone Modem
$25.95or Best Offer$7.00 shippingOnly 1 left!US Robotics Fax Modem Sportster with X2 56K - 0459
$14.99or Best Offer$5.93 shippingZyXEL Omni 56K Mini EE Dial-Up Modem Full Package
$19.99or Best Offer$33.00 shippingBenefits charityAyantra IML 560 Low Power 56 Kbps Industrial Modem
$11.99$8.85 shippingMultiTech Systems MT2834ZDXB 33.6 Kbps Data/Fax Modem
$35.00or Best Offer$11.60 shippingUS ROBOTICS Sportster 33.6 Faxmodem 3COM 000839-09
$65.00or Best OfferHayes 2000US V-Series ULTRA 96 Desktop Smartmodem 9600 with Power Supply
$99.00Was: $132.00or Best Offer$13.63 shippingSWANN SMART II V.90 56K SERIAL DIAL-UP MODEM DATA FAX RS232 PORT Vintage
$81.48$43.12 shippingPractical Peripherals 14400FXSA External Modem V32Bis-w/Box, Power Supply-NICE
$79.50$14.35 shippingUS Robotics 56k External Modem Sportster 5686-83 w Serial Cable Power Supply
$25.00or Best Offer$8.13 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$7.09 shippingSWANN SMART V.90 56K SERIAL DIAL-UP MODEM DATA FAX RS232 PORT INTERFACE Vintage
$81.48$43.12 shippingNew! Genius 56k v92/v90 External Modem GM56EX with 240v UK PSU
$52.62$41.41 shippingUSRobotics 4X2USA-33236-M5-E V.90 56K Standard & x2, External Sportster FaxMo...
$65.00or Best Offer$12.75 shipping4E US Robotics Courier V.Everything with V.34 External Modem Box only no cords
$20.06or Best OfferFree shipping