Dial-Up Modems Serial (RS-232) Computer Modems

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Home Networking & Connectivity

111 Results

LOT 2 US Robotics 3453C 56K External Serial Data Fax Modem W/ 1 Serial Cable
Pre-Owned · USRobotics
PHP 1,674.91
or Best Offer
PHP 3,898.26 shipping
18 watching
+M^ 2& K*1 L1] w UZ. ?H6! |/ $S p o n s o r e d
Acorp M56SCD 56k v.92 External Dial-up Modem
Pre-Owned
PHP 1,116.42
PHP 1,843.02 shipping
3+^ &2* ] OS w.?P!8|/ JN$S p o n s o r e d
ZyXEL Omni 56K Mini EE Dial-Up Modem Full Package
Pre-Owned · ZyXEL
PHP 837.18
or Best Offer
PHP 1,843.02 shipping
+AY^ XS&* O ]E w0T .6K ?!|/ $S p o n s o r e d
US Robotics CJE-0265 14.4K SPORTSTER MODEM
Parts Only · USRobotics
PHP 2,233.96
or Best Offer
PHP 3,242.03 shipping
+U^Z & 11* 28 ] NM w.X?!N |/ $S p o n s o r e d
HAYES 2004AM V-SERIES SMARTMODEM ULTRA 9600 EXTERNAL MODEM WITH WARRANTY
Pre-Owned · Hayes
PHP 4,188.68
or Best Offer
PHP 3,558.14 shipping
12 watching
+^ 0U &* ] wYN.? O!|/ X$ DN
HAYES 231AA 3108US SMARTMODEM 2400 2400 EXTERNAL MODEM **NO AC ADAPTER**
Pre-Owned · Hayes
PHP 4,188.68
or Best Offer
PHP 3,100.74 shipping
3U C+^ &B *E T] w 79. ?3!|/ $
NOS Vtg 3COM US Robotics 56K v90 Fax Modem for MAC OS model: 5689 New
Brand New · USRobotics
PHP 3,351.50
PHP 5,260.42 shipping
+4^2 9&N* ] w. 1?2! P|/ $N
Dial UP Internet modem external GVC SF1156V/RF Serial port (RS-232), TAIWAN
Brand New · GVC
PHP 2,052.45
PHP 996.90 shipping
ZD+ OK^ D&R E* 7] w 2.?!|/ $
Dial Up internet modem external GVC SF-1156V/K4D, Serial (RS-232), TAIWAN
Brand New · GVC
PHP 2,052.45
PHP 996.90 shipping
Q+^L &*P B G]F 1 w.?!5|/ $
Zoom Model 3049 56K V.90 V.92 External Serial Modem - New/Sealed Box
Brand New · Zoom
PHP 4,412.07
PHP 4,241.73 shipping
+^M &*H ] wO5. ?!W|/ $T
Vintage US Robotics Model 5686 3Com 56K Faxmodem External Modem V.90 x2 Tech
New (Other) · USRobotics
PHP 1,115.30
or Best Offer
PHP 5,674.82 shipping
+UM^ &* 2]Z w.?!9C |/ $B
HAYES 07-00056 SMARTMODEM 2400 2400 EXTERNAL MODEM **NO AC ADAPTER**
Pre-Owned · Hayes
PHP 4,188.68
or Best Offer
PHP 3,100.74 shipping
+IM^ FR&* F]L w62 F2.?!|/ $
USRobotics 3453C Courier 56k External Business Modem
New (Other) · USRobotics
PHP 3,838.50
or Best Offer
PHP 1,648.10 shipping
O+^0 & G*A ] w.EB ?4!|/ D$
New ListingUS Robotics 5686E Fax Modem 56K V.92 Modem Box + Inst NO Power Cord OBSOLETE
Parts Only · USRobotics
PHP 947.20
Was: PHP 1,114.19was - PHP 1,114.19
or Best Offer
PHP 2,118.35 shipping
Q+^R &8T* ] w1Z.? !|/ G2$S p o n s o r e d
PRACTICAL PERIPHERALS 336 MiniTower 5913US Modem Cable Included E118830
Pre-Owned · PPC
PHP 2,566.26
or Best Offer
PHP 2,033.46 shipping
PU +E^ N& F* 9] w.F?K!|/ $S p o n s o r e d
USRobotics V.92 56K Faxmodem 5686 (No Ac Adapter)
Pre-Owned · USRobotics
PHP 1,759.24
Was: PHP 2,513.21was - PHP 2,513.21
or Best Offer
PHP 10,755.40 shipping
+^ CH&* 0 ] Fw.?!|/ SE $ 0S p o n s o r e d
5362US HAYES OPTIMA 56K External MODEM Version 7.0 Rare
Pre-Owned · Hayes
PHP 2,233.40
PHP 2,437.81 shipping
+^ &P* 2 WY] w6E .2Z?!|/ O$
U.S.Robotics V.92 0701 MODEM 5686
Pre-Owned · USRobotics
PHP 1,116.42
or Best Offer
PHP 1,567.68 shipping
6+H T^ B VG&* ] w .ML Y?F!| / $
Hayes 5300AM And 5901US Accura External Modems Retro Vintage 14400 And 28800
Parts Only · Hayes
PHP 2,233.40
PHP 2,437.81 shipping
+XT^ & *UO R 9] K w.8? NR!| / $
TELEBIT T2SA T2500 Trailblazer PLUS External Modem W/ POWER SUPPLY - NEW
New (Other) · Telebit
PHP 15,397.01
or Best Offer
PHP 4,519.30 shipping
2 watching
+^K &* P] V4w. 0?Q! N|/2 $
Zoom 3048 External RS-232 56k V.92 Faxmodem for Windows & MAC, Serial Port, NEW
Brand New · Zoom
PHP 1,674.91
or Best Offer
PHP 3,706.70 shipping
B+2^ & * ]1 Cw. XT ?!|34/ $
56EC Conceptronic 56kbps Autoselect V.90/K56Flex Voice/Fax/Modem
Brand New · Conceptronic
PHP 2,714.45
PHP 2,087.07 shipping
+K^ &7 *N7 P]3 w1.H?!|/ Y$
US Robotics Courier 56K Modem 3453
Pre-Owned · USRobotics
PHP 1,114.19
or Best Offer
PHP 2,514.32 shipping
V+J ^ &DL* H] wV 6.?!|Z SH / $
US ROBOTICS COURIER V.EVERYTHING PN00280600 W/AC-ADAPTER #B234
Pre-Owned · USRobotics
PHP 2,233.40
or Best Offer
PHP 1,600.63 shipping
+QO^ C&*T Y0] w.? !V|/ I$
Vintage US Robotics Courier V.Everything Modem
Pre-Owned · USRobotics
PHP 2,231.17
or Best Offer
PHP 3,543.06 shipping
4B P+T ^K B&* C]T wH.?!|Z / $
C56EW Conceptronic 56kbps Controllerbased Voice/Fax/Modem
Brand New · Conceptronic
PHP 3,393.54
PHP 2,805.88 shipping
UC+^ & K1* ] wW.?1 !|/Z $
Global Village Teleport Platinum Fax/Modem A812 with Power Adapter --K
Pre-Owned · Global Village
PHP 1,226.44
or Best Offer
PHP 1,982.08 shipping
+^G &*0 B5 ]F Cw.? !YO |S6 / $
GE Security 420173001 External Industrial Dial-Up Modem with 1A Power Supply
Brand New · GE
PHP 3,350.38
PHP 3,985.38 shipping
O+^2 &U*9 ] 92 wJ.L ?!|0/ $
LOT 2 US Robotics 3453C External Serial Data Fax Modem
Pre-Owned · USRobotics
PHP 3,908.87
or Best Offer
PHP 3,244.83 shipping
+I^ &M * 0]N w .VM? !K6 |/6 $S p o n s o r e d
US Robotics 5686 v.92 56K External Modem Powers On As Is
Parts Only · USRobotics
PHP 725.48
or Best Offer
PHP 2,518.79 shipping
+1G^ & TV* WD] w. ?!|J/U $S p o n s o r e d
US ROBOTICS Sportster 33.6 Faxmodem 3COM 000839-09
Pre-Owned · USRobotics
PHP 2,541.13
Was: PHP 3,630.19was - PHP 3,630.19
or Best Offer
PHP 1,609.57 shipping
+^ &LV IQ *N ] w.H ?V!5 U|/I $S p o n s o r e d
Practical Peripherals 14400FXSA External Modem V32Bis-w/o Box or Power Supply
Pre-Owned · PPC
PHP 1,395.11
PHP 3,144.86 shipping
9+N^ & *33 ] wV8 39. ?!|/ $S p o n s o r e d
MultiTech MultiModmes MT5634ZBA USB V.92 AV External Desktop Data Fax Modem
Pre-Owned · MultiTech
PHP 2,790.77
or Best Offer
PHP 2,184.81 shipping
88 +^M &* ]9 w. ?A!|9/ $
MULTITECH MT5634ZBA-USB-V.92-AV MULTI MODEM USB, DATA/FAX MODEM
New (Other) · MultiTech
PHP 3,015.29
PHP 1,579.41 shipping
67 74+^ &* ] w.1?!|O/ $G
Global Village Teleport Platinum Fax/Modem A812 with Power Adapter --K
Pre-Owned · Global Village
PHP 1,061.13
Was: PHP 1,116.98was - PHP 1,116.98
or Best Offer
PHP 1,566.01 shipping
+I^ 6 Z&R *XM ] w.?1!|/ 3 1$
Us Robotics 5686 Vintage 56K Faxmodem - NEW
Brand New · USRobotics
PHP 3,677.66
or Best Offer
PHP 2,759.50 shipping
+7B F^ 4&* 4O ] w.M?0 !|/U $
Vintage 2400X, FN642E2400X SMART ONE SMART ONE 2400X EXTERNAL MODEM
Pre-Owned · Smart
PHP 2,231.17
PHP 2,126.73 shipping
W+^9 &* ]U Iw .?!|3E / 83 R$
Practical Peripherals PM14400FXMT A1022100 Modem for Mac - NO AC Adapter
Pre-Owned · PPC
PHP 1,738.58
Was: PHP 3,686.03was - PHP 3,686.03
or Best Offer
PHP 1,977.05 shipping
+^ &6*A U ]0 w.?0!|C / L$
Hayes 5300AM Accura 14400 + Fax 144 External Modem Retro Vintage
Pre-Owned · Hayes
PHP 1,228.68
or Best Offer
PHP 3,187.30 shipping
K+M FK Q^ &*U A K] w.?!|/ $S p o n s o r e d
Vintage US Robotics Faxmodem Sportster #0701
Pre-Owned · USRobotics
PHP 1,116.42
PHP 1,993.25 shipping
WI 7+^ &Q* Y ] wQ .G?!|L/ $S p o n s o r e d
Practical Peripherals 14400FXSA External Modem V32Bis
Pre-Owned · PPC
PHP 2,932.07
Was: PHP 4,188.68was - PHP 4,188.68
PHP 1,621.30 shipping
+^ YC &QK N*Q G ] w.Q?!| /G8 $
56E CONCEPTRONIC 56Kbps V.92 Voice/Fax/Modem
Brand New · Conceptronic
PHP 3,287.83
PHP 2,747.77 shipping
0G +^1 Y& *F ] wF. ?!|/ $70
US Robotics 56K V.92 Fax Modem 5686 64-005686-05
Pre-Owned · USRobotics
PHP 1,002.49
or Best Offer
PHP 2,175.88 shipping
T+1^ & *R 5 E]I w .K?Z!|/ $
US Robotics USRobotics3453C 56K External Serial Data Fax Modem
Pre-Owned · USRobotics
PHP 1,954.16
PHP 5,283.32 shipping
M+^ L& * ] wS.?!|I /6 H P6 $
US Robotics 56K V.92 Fax Modem 64-005686-06R
Pre-Owned · USRobotics
PHP 1,002.49
or Best Offer
PHP 2,131.76 shipping
Z+^ &C* ] V6w .?Y!|/ $Y K
US Robotics Fax Modem Sportster with X2 56K - 0459
Pre-Owned · USRobotics
PHP 837.18
or Best Offer
PHP 1,902.78 shipping
F+^ &* J] 0 5w .K?B !B|Q/ 6X $
56E Conceptronic 56kbps V.92 Voice/Fax/Modem
Brand New · Conceptronic
PHP 3,291.42
PHP 2,882.89 shipping
+^ &Q4 JG ET F*C ] 2w.?N!| / $
US Robotics 3453 Courier 56Kbps Business Modem
Pre-Owned · USRobotics
PHP 1,393.43
PHP 5,513.41 shipping
KA+ ^ &*4 ]N w .?!E|P/ KL OU $
USRobotics V.Everything 56K Analog Modem 002806-00 With Console Cable
Pre-Owned · USRobotics
PHP 2,233.40
or Best Offer
PHP 1,600.63 shipping
+PI^ &*E ] 6w.? !|/MQ R $
Practical Peripherals Pro Class V.32bis Mini Tower Data/Fax Modem PC144MT
Pre-Owned · PPC
PHP 1,396.23
PHP 2,131.76 shipping
+4^S &* ] 8Yw B.4?!| 7/ $U
MultiTech MT2834ZDX Modem Multi - TESTED
Pre-Owned · MultiTech
PHP 1,019.24
or Best Offer
PHP 1,564.89 shipping
WF+ ^1 C &* Z] Cw.?!| OC/ P $
56EC CONCEPTRONIC 56Kbps Autoselect V.90/K56Flex Voice/Fax/Modem
Brand New · Conceptronic
PHP 2,685.78
PHP 2,099.36 shipping
GD +^ &*2C ] w. ?!TM|/ 0X $
PRACTICAL PERIPHERALS 336 MINITOWER 5913US 33.6 KBPS ETHERNET EXTERNAL FAX MODEM
New (Other) · PPC
PHP 1,054.99
Was: PHP 1,172.27was - PHP 1,172.27
or Best Offer
PHP 2,781.84 shipping
9+S^ &* ]S wX.? O!4|/ $ N4
C56EW CONCEPTRONIC 56KBPS Controller Based Voice/Fax/Modem
Brand New · Conceptronic
PHP 3,358.20
PHP 2,822.61 shipping
SO I+^L & * MN ] w.?!1|/Y $
56E Conceptronic 56kbps V.92 Voice/Fax/Modem
Brand New · Conceptronic
PHP 3,325.44
PHP 2,805.88 shipping
+^E &* O] w .?!1X|/ B1 $
US ROBOTICS 64-005686-05 56K FAXMODEM USED FREE SHIPPING!!!!!!
Pre-Owned · USRobotics
PHP 1,239.29
Was: PHP 1,674.91was - PHP 1,674.91
or Best Offer
PHP 1,526.91 shipping
+^ J&* J] w .6O R?C !|R/S $
MultiTech Systems MT2834ZDXB 33.6 Kbps Data/Fax Modem Lot
Pre-Owned · MultiTech
PHP 3,350.38
or Best Offer
PHP 1,633.58 shipping
+RE^ &6E* 1 5] w.?!8|/ $O
Two US Robotics Sportster 459 - 33.6 Faxmodems PLUS One Sportster VOICE
Brand New · USRobotics
PHP 2,736.60
or Best Offer
PHP 2,452.89 shipping
O+^5 &*8B ] wUF.?!|/ R6 $
2400X, FN642E2400X smart one smart one 2400X external modem
Pre-Owned · Smart
PHP 8,349.43
or Best Offer
PHP 3,321.34 shipping
+^W 1 &* P]C w.?D4 YN!|/ $S p o n s o r e d
3COM U.S. ROBOTICS 5686 56K FAXMODEM external. Open box
New (Other) · USRobotics
PHP 1,507.36
Was: PHP 1,674.91was - PHP 1,674.91
or Best Offer
PHP 3,073.93 shipping
4H+ F^ &*T ] TM FR w .?!|/U $S p o n s o r e d

Dial-Up Modems Serial (RS-232) Computer Modems

Shop by Category

111 Results

LOT 2 US Robotics 3453C 56K External Serial Data Fax Modem W/ 1 Serial Cable

Acorp M56SCD 56k v.92 External Dial-up Modem

ZyXEL Omni 56K Mini EE Dial-Up Modem Full Package

US Robotics CJE-0265 14.4K SPORTSTER MODEM

HAYES 2004AM V-SERIES SMARTMODEM ULTRA 9600 EXTERNAL MODEM WITH WARRANTY

HAYES 231AA 3108US SMARTMODEM 2400 2400 EXTERNAL MODEM **NO AC ADAPTER**

NOS Vtg 3COM US Robotics 56K v90 Fax Modem for MAC OS model: 5689 New

Dial UP Internet modem external GVC SF1156V/RF Serial port (RS-232), TAIWAN

Dial Up internet modem external GVC SF-1156V/K4D, Serial (RS-232), TAIWAN

Zoom Model 3049 56K V.90 V.92 External Serial Modem - New/Sealed Box

Vintage US Robotics Model 5686 3Com 56K Faxmodem External Modem V.90 x2 Tech

HAYES 07-00056 SMARTMODEM 2400 2400 EXTERNAL MODEM **NO AC ADAPTER**

USRobotics 3453C Courier 56k External Business Modem

New ListingUS Robotics 5686E Fax Modem 56K V.92 Modem Box + Inst NO Power Cord OBSOLETE

PRACTICAL PERIPHERALS 336 MiniTower 5913US Modem Cable Included E118830

USRobotics V.92 56K Faxmodem 5686 (No Ac Adapter)

5362US HAYES OPTIMA 56K External MODEM Version 7.0 Rare

U.S.Robotics V.92 0701 MODEM 5686

Hayes 5300AM And 5901US Accura External Modems Retro Vintage 14400 And 28800

TELEBIT T2SA T2500 Trailblazer PLUS External Modem W/ POWER SUPPLY - NEW

Zoom 3048 External RS-232 56k V.92 Faxmodem for Windows & MAC, Serial Port, NEW

56EC Conceptronic 56kbps Autoselect V.90/K56Flex Voice/Fax/Modem

US Robotics Courier 56K Modem 3453

US ROBOTICS COURIER V.EVERYTHING PN00280600 W/AC-ADAPTER #B234

Vintage US Robotics Courier V.Everything Modem

C56EW Conceptronic 56kbps Controllerbased Voice/Fax/Modem

Global Village Teleport Platinum Fax/Modem A812 with Power Adapter --K

GE Security 420173001 External Industrial Dial-Up Modem with 1A Power Supply

LOT 2 US Robotics 3453C External Serial Data Fax Modem

US Robotics 5686 v.92 56K External Modem Powers On As Is

US ROBOTICS Sportster 33.6 Faxmodem 3COM 000839-09

Practical Peripherals 14400FXSA External Modem V32Bis-w/o Box or Power Supply

MultiTech MultiModmes MT5634ZBA USB V.92 AV External Desktop Data Fax Modem

MULTITECH MT5634ZBA-USB-V.92-AV MULTI MODEM USB, DATA/FAX MODEM

Global Village Teleport Platinum Fax/Modem A812 with Power Adapter --K

Us Robotics 5686 Vintage 56K Faxmodem - NEW

Vintage 2400X, FN642E2400X SMART ONE SMART ONE 2400X EXTERNAL MODEM

Practical Peripherals PM14400FXMT A1022100 Modem for Mac - NO AC Adapter

Hayes 5300AM Accura 14400 + Fax 144 External Modem Retro Vintage

Vintage US Robotics Faxmodem Sportster #0701

Practical Peripherals 14400FXSA External Modem V32Bis

56E CONCEPTRONIC 56Kbps V.92 Voice/Fax/Modem

US Robotics 56K V.92 Fax Modem 5686 64-005686-05

US Robotics USRobotics3453C 56K External Serial Data Fax Modem

US Robotics 56K V.92 Fax Modem 64-005686-06R

US Robotics Fax Modem Sportster with X2 56K - 0459

56E Conceptronic 56kbps V.92 Voice/Fax/Modem

US Robotics 3453 Courier 56Kbps Business Modem

USRobotics V.Everything 56K Analog Modem 002806-00 With Console Cable

Practical Peripherals Pro Class V.32bis Mini Tower Data/Fax Modem PC144MT

MultiTech MT2834ZDX Modem Multi - TESTED

56EC CONCEPTRONIC 56Kbps Autoselect V.90/K56Flex Voice/Fax/Modem

PRACTICAL PERIPHERALS 336 MINITOWER 5913US 33.6 KBPS ETHERNET EXTERNAL FAX MODEM

C56EW CONCEPTRONIC 56KBPS Controller Based Voice/Fax/Modem

56E Conceptronic 56kbps V.92 Voice/Fax/Modem

US ROBOTICS 64-005686-05 56K FAXMODEM USED FREE SHIPPING!!!!!!

MultiTech Systems MT2834ZDXB 33.6 Kbps Data/Fax Modem Lot

Two US Robotics Sportster 459 - 33.6 Faxmodems PLUS One Sportster VOICE

2400X, FN642E2400X smart one smart one 2400X external modem

3COM U.S. ROBOTICS 5686 56K FAXMODEM external. Open box

More to explore

HAYES 231AA 3108US SMARTMODEM 2400 2400 EXTERNAL MODEM NO AC ADAPTER

HAYES 07-00056 SMARTMODEM 2400 2400 EXTERNAL MODEM NO AC ADAPTER