Serial (RS-232) Computer Modems for sale

US Robotics USR courier 56k v90 v92 external fax/modem rs-232 rohs USR3453C
Pre-Owned · USRobotics
$23.25
or Best Offer
$8.50 shipping
+^PR U&N R7* MN ] w.?!Y|R/ $S p o n s o r e d
New ListingCox Cable Modem WiFi Gateway Router Model CGM4331COX - NO POWER CORD
Pre-Owned · Gateway
$29.99
Free shipping
U+J ^ &*SC ] w.8?P!|/ $ S p o n s o r e d
US Robotics USR courier 56k v90 v92 external fax/modem rs-232 rohs USR3453C
Open Box · USRobotics
$221.99
Free shipping
25+ 6U ^71 &* ] w.?X!A|/ $S p o n s o r e d
MultiTech MT932BA Dial Up Serial 232 External Analog Intelligent Modem
Pre-Owned · MultiTech
$50.00
$15.25 shipping
+J^ &* ]T G0w. E?!|/ $A CS p o n s o r e d
HAYES 231AA 3108US SMARTMODEM 2400 2400 EXTERNAL MODEM **NO AC ADAPTER**
Pre-Owned · Hayes
(3)
$75.00
or Best Offer
$8.69 shipping
+N^ &* ] L JT AwA 5.?Y 8Z! |/ $
HAYES 2004AM V-SERIES SMARTMODEM ULTRA 9600 EXTERNAL MODEM WITH WARRANTY
Pre-Owned · Hayes
$75.00
or Best Offer
$9.44 shipping
12 watching
+^X C& KM *N7 ] M W w.7?!|/ $
HAYES 5674US ACCURA 56K EXTERNAL FAX MODEM ACCURA 56K
Pre-Owned · Hayes
$29.66
Was: $32.95was - US $32.95
or Best Offer
$7.16 shipping
+Y^Q &* ] wXC .BV? !|FZ / $
Zoom Model 3049 56K V.90 V.92 External Serial Modem - New/Sealed Box
Brand New · Zoom
$79.00
$8.69 shipping
V+8^ I&K* 48 ] Bw.?!3| DA / $
New ListingComcast Xfinity XB7-T GIGABIT Modem WiFi Router W OEM Power Adapter!
Pre-Owned · XFINITY
(1)
$32.99
or Best Offer
Free shipping
C+4 ^98 6 1& *4 ] wW.?!|/ $
HAYES 07-00056 SMARTMODEM 2400 2400 EXTERNAL MODEM **NO AC ADAPTER**
Pre-Owned · Hayes
$75.00
or Best Offer
$8.69 shipping
7+^ 3 &B9* 1]9 w. LK GH? !|/ $
NOS Vtg 3COM US Robotics 56K v90 Fax Modem for MAC OS model: 5689 New
Brand New · USRobotics
$60.01
$8.71 shipping
+^ &*K ] C OM wZ7.?! |/ $ZZ
MultiTech Multiconnect Cell 100 Series Modem MTC-MNA1-B01
Brand New · MultiTech
$46.04
or Best Offer
Free shipping
P+^ N&* ] w.?!|/ $AH 8T
Hayes V-Series ULTRA 96 9600 Desktop Smartmodem - NOS - Brand New / Sealed
Brand New · Hayes
$169.95
$8.20 shipping
+T^S 71&* ] Bw0 T.?!|/2 3$
LOT 2 US Robotics 3453C 56K External Serial Data Fax Modem W/ 1 Serial Cable
Pre-Owned · USRobotics
(1)
$29.99
or Best Offer
$12.88 shipping
18 watching
E+^J &* ] AZw.? 8!7| /N7 XN $S p o n s o r e d
Black Box MD845A-R2 Analog Async Bell Modem 202 - LEASED-LINE , RS-232
Pre-Owned · Black Box
$529.99
or Best Offer
$7.73 shipping
+^ &76 U* A ] w.?!Z|/ $W 9S p o n s o r e d
ECONOLITE Industrial 56K RJ11C RJ11W 24 V Input RS-232 Traffic Cabinet Component
Pre-Owned · MultiTech
$31.99
or Best Offer
$9.28 shipping
+^ &* H] Bw O.L Y?X! Q|/ F Q$S p o n s o r e d
Startech.com 2m Black Db9 Rs232 Serial Null Modem Cable F/f - Serial For Modem -
Brand New · StarTech
(3)
$8.35
Free shipping
1+G ^ &H7* 14] w.GC?! |T/ $
MultiTech Multiconnect Cell 100 Series Modem MTC-MNA1-B01
Brand New · MultiTech
$33.95
$9.50 shipping
+^ 6I &G*X ] Nw.S? G7 L!D| / $
Lot of 17 Sierra Wireless Verizon AirLink LS300 HSPA+ 3G Cellular Gateway PQ3544
Pre-Owned · Sierra Wireless
$249.77
or Best Offer
$28.72 shipping
+QJ ^Z1 CU&* ]N w.?J!|/ X$
Cox Cable Modem WiFi Gateway Router Model CGM4331COX - W/ Power Cord
Parts Only · Gateway
$19.99
or Best Offer
$7.16 shipping
+H7^ K7 &*Z A ]E w.V? 59! |/ $
U.S.Robotics V.92 0701 MODEM 5686
Pre-Owned · USRobotics
(1)
$19.99
or Best Offer
Free shipping
77 C+^7 ND & O* ]P w.9?!S| / $
Comcast Xfinity XB7-T Modem WiFi Router w/Power Cord 4-PORTS For Parts
Parts Only · XFINITY
(1)
$25.00
or Best Offer
$11.40 shipping
R+^ &D U* ] Kw.?! WW| /0C $
Sierra Wireless Airlink Gx450 4G LTE Wireless Gateway Modem - UNTESTED
Parts Only · Sierra Wireless
$35.00
or Best Offer
Free shipping
K+^G N&* ]V w.NF ?!A|/5 T$
Comcast Xfinity XB7-T GIGABIT Modem WiFi Router W OEM Power Adapter! USED UNTEST
Pre-Owned · XFINITY
(1)
$9.00
or Best Offer
$12.99 shipping
0 bids
5d 8h
5+D MF^ & *M ]T w .VK?!|/ 0$
Comcast Xfinity XB7-T Modem WiFi Router w/Power Cord 4-PORTS Turns On
Parts Only · XFINITY
(1)
$24.77
$9.99 shipping
+^ NM &* ] Jw.?!|/6 ZT $ 3
Vintage US Robotics Courier V.Everything Modem
Pre-Owned · USRobotics
$39.95
or Best Offer
$13.00 shipping
JX +9^ &6* ] w.?!|/B7 $Z
Sierra Wireless Modem LX40
Brand New · Sierra
$149.99
or Best Offer
$8.32 shipping
D+^V 3&O* ] w .7D? 1Z U!0| / $
Cox Cable Modem WiFi Gateway Router Model CGM4331COX - NO POWER CORD
Pre-Owned · Gateway
$29.99
Free shipping
C+X^ Z 0 &O*W ] w.G?D!| YX/ $
MTCMR-C1 Multi-Tech Intelligent Wireless Modem RS-232
Pre-Owned · MultiTech
$89.00
Was: $98.89was - US $98.89
or Best Offer
Free shipping
+^EN &* 1N] L Uw I.6 ?9!|T/ $S p o n s o r e d
Sierra Wireless AirLink MP70 LTE-Advanced Pro Wi-Fi Router-DC PowerCable-1104073
Open Box · Sierra Wireless
$678.00
Free shipping
+Z^P 3E & B* ]N QX w.? !0|/ $S p o n s o r e d
Fax Cube RS232 C
Pre-Owned
$179.00
or Best Offer
$16.51 shipping
03 +^ &*QG ] W3w. ?!|OB /H7 $S p o n s o r e d
Sierra Wireless GL6100 Modem Kit RS232 32V
Brand New · Sierra Wireless
$250.79
or Best Offer
$10.84 shipping
+B^ &*O ]PN M w0.? A!|V/ $S p o n s o r e d
US ROBOTICS V.92 EXTERNAL FAX MODEM #5686 MODEL 0701
Pre-Owned · USRobotics
$24.99
Free shipping
+SD^ JE&* U ]T w .V?3! |XO/ $
MultiTech Multi-Tech LTE Cat 3 Modem (RS232)
Open Box · MultiTech
$25.00
or Best Offer
$9.13 shipping
+^MP A6& *7W ] w.8?!Q |YG/ $
Signalman Modem Anchor Automation Mark II Atari Vintage Gaming
Pre-Owned
$10.67
Was: $11.99was - US $11.99
or Best Offer
$8.00 shipping
+^ID &* ] w.?!D|/0 4$N M
Industrial 5G Cellular Router with Dual 5G SIM Card Ports RS232/485 Model 4416
Brand New · Unbranded
$315.00
Free shipping
19 watching
4+^C & 4*3 ] w.Q?!|/B 4$
10 ft Cross Wired DB9 Female to DB25 Male Serial Port To RS232 Modem Cable
Brand New · StarTech
$9.25
or Best Offer
$7.01 shipping
C+^G &* ] YwG.? !|16/ $
US Robotics Courier 56K Modem 3453
Pre-Owned · USRobotics
(1)
$19.95
or Best Offer
$16.95 shipping
G+^ M &*1I ]V4 w. ?!|R/P $
Sierra Wireless G2212-C Airlink Raven XT
Pre-Owned · Sierra Wireless
$22.00
or Best Offer
$6.48 shipping
8Z+^ & * ] wF6.? P!M|/ O8 $S p o n s o r e d
Hayes 5300AM Accura 14400 + Fax 144 External Modem Retro Vintage
Pre-Owned · Hayes
$22.00
or Best Offer
$6.51 shipping
Y+P^ J 5 &* ] w.?!J|/ $H T2S p o n s o r e d
New Sierra Wireless GL6100 RS232 Modem with Accessories FREE SHIPPING
Brand New · Sierra Wireless
$79.99
or Best Offer
Free shipping
+FU S^ &*J ] w.?5!Z|/ $87
LINOVISION Industrial 4G LTE Router with Virtual SIM, eSIM Router Supports RS232
Brand New
$199.00
or Best Offer
Free shipping
+^ &* 6J] w.?!|/ $D6 1R ML
QUAKE GLOBAL Q9612 Iridium Satellite Modem
Pre-Owned · Iridium
$65.00
or Best Offer
$10.65 shipping
+1^ 2 &X*Q B] Tw O.H?!|/ $
Sierra Wireless AirLink LS300 Cellular Modem -No Adapter
Pre-Owned · Sierra Wireless
$11.99
or Best Offer
Free shipping
+^CS & * 5G ] w1A .?!Z|/I $
US Robotics Fax Modem Sportster with X2 56K - 0459
Pre-Owned · USRobotics
$14.99
or Best Offer
$6.29 shipping
W2 +XJ ^ J&*Y C] w.C Y?!|M / $
Comcast Xfinity XB7-T GIGABIT Modem WiFi Router w/o Power Cord [UNTESTED]
Pre-Owned · XFINITY
(1)
$35.00
Trending at $39.98
Free shipping
+^K &*7 3 ] wJ 3.?L! |/ 7I W$
Versitron RS-232 M8215-DCE Fiber Optic Micro Modem
Pre-Owned
$19.88
Free shipping
+^0 &*Q ] TwI. V?3! |/P O $
Cascade RS-232 56 K Baud Low Power Modem for harsh conditions - Used
Pre-Owned
$19.99
or Best Offer
Free shipping
F+^ &* ] 0w.? W5!|/ V G$ H
Data Remote CDS-9022-1X CDMA Analog Tri-mode Cellular Modem, RS232 SMS DCS-9022A
Pre-Owned
$149.99
or Best Offer
$12.00 shipping
0+^B & XD* ] 8w.G?!|/ T$Y
Hayes Accura 366 V.34 Fax Modem 5914US
Pre-Owned · Hayes
$19.95
or Best Offer
$12.95 shipping
+^ &* X] 3 5Nw.?!| X/D 84 $
US ROBOTICS COURIER V.EVERYTHING PN00280600 W/AC-ADAPTER #B234
Pre-Owned · USRobotics
$39.99
or Best Offer
Free shipping
1+B^ R&G * 8I ]ZE w5.4?! |/ $
Practical Peripherals 14400FXSA External Modem V32Bis-w/o Box or Power Supply
Pre-Owned · PPC
$24.98
$13.10 shipping
2+^Z R&*B ] 60w. ?LY!| / $
USRobotics 3453C Courier 56k External Business Modem
Open Box · USRobotics
$68.73
or Best Offer
Free shipping
+Y^ &*A ]Q w.7 ?!|/ Q4 F$W
B&B ELECTRONICS RS-232 MODEL 9PFLST PORT POWERED FIBER OPTIC MODEM
Open Box
$39.00
or Best Offer
Free shipping
XR+ ^3R & *1 ]Z w.4?H!|/ $
Optelecom Single Mode Fiber Optic RS232/422/485 Modem Model 9525-LD-ST E90
Pre-Owned
$13.50
Was: $29.99was - US $29.99
or Best Offer
$9.00 shipping
57 9+^ &2* ] Y2 YCw.?!|/ $
Optelecom 9525A-L-ST Multimode Fiber Optic DROP/INSERT RS232/422/485 Modem 1310N
Parts Only
$49.00
or Best Offer
Free shipping
+^ Z&* ] Mw .?!M|Z 0A K/E $
Maxstream Digi XBP24-PKI-001-RA - XBee Pro RS232 Modem
Open Box · Digi
$74.99
Free shipping
+^ OT&* ] w. ?0!E 4|/ $X
DB9 RS232 Serial Cable Female to Female Null Modem Cord Full Handshaking 7 Wi...
Brand New
$14.98
Free shipping
+^1T & RV* 88 B]8 w 4V .?!|/ $
Microhard BulletplusAC CAT12 4G/LTE Ethernet/Serial/USB Gateway w/WIFI, Dual SIM
New (Other)
$324.15
or Best Offer
$12.88 shipping
+^ &*Z ]6 w .?!RG KA |6C F/6 $S p o n s o r e d
Original MultiTech MTC-MNA1-B01 CAT M1 Cellular Modem
Open Box · MultiTech
$119.99
Was: $149.99was - US $149.99
Free shipping
+^TG S&* ]L w.? RL! |1/ V$ S p o n s o r e d

Serial (RS-232) Computer Modems

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338 Results

US Robotics USR courier 56k v90 v92 external fax/modem rs-232 rohs USR3453C

New ListingCox Cable Modem WiFi Gateway Router Model CGM4331COX - NO POWER CORD

US Robotics USR courier 56k v90 v92 external fax/modem rs-232 rohs USR3453C

MultiTech MT932BA Dial Up Serial 232 External Analog Intelligent Modem

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

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

HAYES 5674US ACCURA 56K EXTERNAL FAX MODEM ACCURA 56K

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

New ListingComcast Xfinity XB7-T GIGABIT Modem WiFi Router W OEM Power Adapter!

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

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

MultiTech Multiconnect Cell 100 Series Modem MTC-MNA1-B01

Hayes V-Series ULTRA 96 9600 Desktop Smartmodem - NOS - Brand New / Sealed

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

Black Box MD845A-R2 Analog Async Bell Modem 202 - LEASED-LINE , RS-232

ECONOLITE Industrial 56K RJ11C RJ11W 24 V Input RS-232 Traffic Cabinet Component

Startech.com 2m Black Db9 Rs232 Serial Null Modem Cable F/f - Serial For Modem -

MultiTech Multiconnect Cell 100 Series Modem MTC-MNA1-B01

Lot of 17 Sierra Wireless Verizon AirLink LS300 HSPA+ 3G Cellular Gateway PQ3544

Cox Cable Modem WiFi Gateway Router Model CGM4331COX - W/ Power Cord

U.S.Robotics V.92 0701 MODEM 5686

Comcast Xfinity XB7-T Modem WiFi Router w/Power Cord 4-PORTS For Parts

Sierra Wireless Airlink Gx450 4G LTE Wireless Gateway Modem - UNTESTED

Comcast Xfinity XB7-T GIGABIT Modem WiFi Router W OEM Power Adapter! USED UNTEST

Comcast Xfinity XB7-T Modem WiFi Router w/Power Cord 4-PORTS Turns On

Vintage US Robotics Courier V.Everything Modem

Sierra Wireless Modem LX40

Cox Cable Modem WiFi Gateway Router Model CGM4331COX - NO POWER CORD

MTCMR-C1 Multi-Tech Intelligent Wireless Modem RS-232

Sierra Wireless AirLink MP70 LTE-Advanced Pro Wi-Fi Router-DC PowerCable-1104073

Fax Cube RS232 C

Sierra Wireless GL6100 Modem Kit RS232 32V

US ROBOTICS V.92 EXTERNAL FAX MODEM #5686 MODEL 0701

MultiTech Multi-Tech LTE Cat 3 Modem (RS232)

Signalman Modem Anchor Automation Mark II Atari Vintage Gaming

Industrial 5G Cellular Router with Dual 5G SIM Card Ports RS232/485 Model 4416

10 ft Cross Wired DB9 Female to DB25 Male Serial Port To RS232 Modem Cable

US Robotics Courier 56K Modem 3453

Sierra Wireless G2212-C Airlink Raven XT

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

New Sierra Wireless GL6100 RS232 Modem with Accessories FREE SHIPPING

LINOVISION Industrial 4G LTE Router with Virtual SIM, eSIM Router Supports RS232

QUAKE GLOBAL Q9612 Iridium Satellite Modem

Sierra Wireless AirLink LS300 Cellular Modem -No Adapter

US Robotics Fax Modem Sportster with X2 56K - 0459

Comcast Xfinity XB7-T GIGABIT Modem WiFi Router w/o Power Cord [UNTESTED]

Versitron RS-232 M8215-DCE Fiber Optic Micro Modem

Cascade RS-232 56 K Baud Low Power Modem for harsh conditions - Used

Data Remote CDS-9022-1X CDMA Analog Tri-mode Cellular Modem, RS232 SMS DCS-9022A

Hayes Accura 366 V.34 Fax Modem 5914US

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

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

USRobotics 3453C Courier 56k External Business Modem

B&B ELECTRONICS RS-232 MODEL 9PFLST PORT POWERED FIBER OPTIC MODEM

Optelecom Single Mode Fiber Optic RS232/422/485 Modem Model 9525-LD-ST E90

Optelecom 9525A-L-ST Multimode Fiber Optic DROP/INSERT RS232/422/485 Modem 1310N

Maxstream Digi XBP24-PKI-001-RA - XBee Pro RS232 Modem

DB9 RS232 Serial Cable Female to Female Null Modem Cord Full Handshaking 7 Wi...

Microhard BulletplusAC CAT12 4G/LTE Ethernet/Serial/USB Gateway w/WIFI, Dual SIM

Original MultiTech MTC-MNA1-B01 CAT M1 Cellular Modem

Best Selling

USRobotic 5686G V92 & V90 External Faxmodem

Startech.com SCNM9FF Serial Modem Cable

Zoom 2949L Fax Modem 56k DUALMODE (tsc)

DTech DB9 RS232 Serial Cable Female to Female Null Modem Cord Cross TX RX...

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

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