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
DA+^ &XJ* ] w.EG I?!|/ $WS p o n s o r e d
Cox Cable Modem WiFi Gateway Router Model CGM4331COX - NO POWER CORD
Pre-Owned · Gateway
$29.99
Free shipping
+3^Y & * ] 7w.?H! |W/3 2$2 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
$219.99
Free shipping
+^ E9& Z*C P3 ] w.OU ?!3|Q/ $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
M+H ^ &* FZ] 44 w. E?!R |/ $S p o n s o r e d
(Lot of 12) US Robotics V.92 Model# 5686 External Modem + Fax
Pre-Owned · USRobotics
(7)
$125.00
or Best Offer
$12.08 shipping
+5^ &* ]J w.? !|/ VL$ UM
Vintage US Robotics Model 5686 3Com 56K Faxmodem External Modem V.90 x2 Tech
Open Box · USRobotics
(2)
$19.97
or Best Offer
$12.00 shipping
+^2 &X* ]ZH w.?!|/ YO$ FS
HAYES 231AA 3108US SMARTMODEM 2400 2400 EXTERNAL MODEM **NO AC ADAPTER**
Pre-Owned · Hayes
(3)
$75.00
or Best Offer
$8.69 shipping
+^J 9& *R W J]Z w R.Q? !7|/ $
HAYES 2004AM V-SERIES SMARTMODEM ULTRA 9600 EXTERNAL MODEM WITH WARRANTY
Pre-Owned · Hayes
$75.00
or Best Offer
$9.44 shipping
12 watching
+QB ^ &J* A] wZG .?M!V |E/R $
NOS Vtg 3COM US Robotics 56K v90 Fax Modem for MAC OS model: 5689 New
Brand New · USRobotics
$60.01
$8.71 shipping
+^ N&* ]O w. R3 ?!|E/ $1 O
Zoom Model 3049 56K V.90 V.92 External Serial Modem - New/Sealed Box
Brand New · Zoom
$79.00
$8.69 shipping
90+ ^YI &*Y ] Cw .W?!|/ 5$
Startech.com 2m Black Db9 Rs232 Serial Null Modem Cable F/f - Serial For Modem -
Brand New · StarTech
(3)
$8.58
Free shipping
T+D VX^ &* T] w.?M!|/ E $Q
MultiTech Multiconnect Cell 100 Series Modem MTC-MNA1-B01
Brand New · MultiTech
$43.60
or Best Offer
Free shipping
J+^ &*9 ] wQU .T6 T?!L|/ $
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
+^ 9&M* ] wJN .?!|/4C $ 4
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
SI+^ K&* ] H wU.0? 2!|/Y $S 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+1^ & * CU] N w.?!H |/FZ $ S p o n s o r e d
Fax Cube RS232 C
Pre-Owned
$179.00
or Best Offer
$16.51 shipping
+KQ^ &Z* ]1 Rw.?!|/ $NS p o n s o r e d
Cox Cable Modem WiFi Gateway Router Model CGM4331COX - NO POWER CORD
Pre-Owned · Gateway
$29.99
Free shipping
+^ &M*K C ] T Hw.K?! Q|I/ $
Comcast Xfinity XB7-T Modem WiFi Router w/Power Cord 4-PORTS For Parts
Parts Only · XFINITY
(1)
$25.00
or Best Offer
$11.40 shipping
+K8 ^ Q&6* ]Z w.?T! |W6/ D$
Hayes V-Series ULTRA 96 9600 Desktop Smartmodem - NOS - Brand New / Sealed
Brand New · Hayes
$169.95
$8.20 shipping
+3^2 & KS X* 8] Aw8 .0A?!|/ $
Vintage US Robotics Courier V.Everything Modem
Pre-Owned · USRobotics
$39.95
or Best Offer
$13.00 shipping
HH+^ IB& N*7 LL] wO.?!|/ $
HAYES 07-00056 SMARTMODEM 2400 2400 EXTERNAL MODEM **NO AC ADAPTER**
Pre-Owned · Hayes
$75.00
or Best Offer
$8.69 shipping
+U^ &Q * ] X7w. ?64 !|9V/ $
Sierra Wireless Modem LX40
Brand New · Sierra
$149.99
or Best Offer
$8.32 shipping
+^ &6* ]0 w. ?61 !4|V/ A $
Sierra Wireless Airlink Gx450 4G LTE Wireless Gateway Modem - UNTESTED
Parts Only · Sierra Wireless
$35.00
or Best Offer
Free shipping
+J6^ M&*P L V ] ENw.? 1!3|/ $
Cox Cable Modem WiFi Gateway Router Model CGM4331COX - W/ Power Cord
Parts Only · Gateway
$19.99
or Best Offer
$7.16 shipping
6H 8+O^ I&P * ]X0 8w.L?!|/ $
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
1+N^ &* ] Vw.K? !|/ $I
New Sierra Wireless GL6100 RS232 Modem with Accessories FREE SHIPPING
Brand New · Sierra Wireless
$79.99
or Best Offer
Free shipping
+S^ &*S ] wQ.U?!|/ 1$T 8
Maxstream Digi XBP24-PKI-001-RA - XBee Pro RS232 Modem
Open Box · Digi
$74.99
Free shipping
+38^ &* K5] w .?5X!|/ $
Industrial 5G Cellular Router with Dual 5G SIM Card Ports RS232/485 Model 4416
Brand New · Unbranded
$310.00
Free shipping
20 watching
+MB 2^L &* I]J Pw.?!|/F $
Sierra Wireless AirLink MP70 LTE-Advanced Pro Wi-Fi Router-DC PowerCable-1104073
Open Box · Sierra Wireless
$678.00
Free shipping
+^ WI& S1* J ] w.?W!| /G 4 F$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
$10.84 shipping
+^ M&* ] 7 35w. 1?!|/ 7$ LS p o n s o r e d
MTCMR-C1 Multi-Tech Intelligent Wireless Modem RS-232
Pre-Owned · MultiTech
$98.89
or Best Offer
Free shipping
+^ 11 &*0 X] wZ.?L E!T J|D/ $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
+9^ &* ]D w18.?! H6| /8L $S p o n s o r e d
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 17h
E+^0 18& * ]J w.H?! |7Z/ $
US Robotics 0462 Sportster Voice 56K External Fax Modem with Voice Mail
Pre-Owned · USRobotics
$12.00
$10.36 shipping
51+^ 7 &*0 ]T wY .?!A|/ I$
U.S.Robotics V.92 0701 MODEM 5686
Pre-Owned · USRobotics
(1)
$19.99
or Best Offer
Free shipping
P+4^ & 5S *XC 5H] w. G3?! |/ $
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
3Z+^ & K* ] H Zw.Q?! |/ $
Versitron RS-232 M8215-DCE Fiber Optic Micro Modem
Pre-Owned
$19.88
Free shipping
+^ ZD&* 9O] wW.?!|E/ $ A4
B&B ELECTRONICS RS-232 MODEL 9PFLST PORT POWERED FIBER OPTIC MODEM
Open Box
$39.00
or Best Offer
Free shipping
+V^V 1&* ]2 w0K.?! |A/ $W
Sierra Wireless G2212-C Airlink Raven XT
Pre-Owned · Sierra Wireless
$22.00
or Best Offer
$6.48 shipping
7+W ^ 7&*1 ] wD.?D !|RT / $S p o n s o r e d
Original MultiTech MTC-MNA1-B01 CAT M1 Cellular Modem
Open Box · MultiTech
$149.99
Free shipping
+^ 0&*4 W2] w. 1?!H|/ K 6$S p o n s o r e d
Hayes Accura 366 V.34 Fax Modem 5914US
Pre-Owned · Hayes
$19.95
or Best Offer
$12.95 shipping
+H0 ^D &J *XO ] w.5?3!|/ C $
LINOVISION Industrial 4G LTE Router with Virtual SIM, eSIM Router Supports RS232
Brand New
$199.00
or Best Offer
Free shipping
B8 2Y+ T^ &* ] A Bw.P? X!|X / $
US ROBOTICS V.92 EXTERNAL FAX MODEM #5686 MODEL 0701
Pre-Owned · USRobotics
$24.99
Free shipping
1Y+^ & *G ]G w. ?PB !U|B S/ $
MultiTech Multi-Tech LTE Cat 3 Modem (RS232)
Open Box · MultiTech
$25.00
or Best Offer
$9.13 shipping
0+V^ 36 &* ]U 6w .?Z9! |/ $
US Robotics Courier 56K Modem 3453
Pre-Owned · USRobotics
(1)
$19.95
or Best Offer
$16.95 shipping
+^O &*R ]J w.U? !|/8 $S
USRobotics 3453C Courier 56k External Business Modem
Open Box · USRobotics
$68.73
or Best Offer
Free shipping
+^ &V* N G] wK .?!|/ N$
Signalman Modem Anchor Automation Mark II Atari Vintage Gaming
Pre-Owned
$10.79
Was: $11.99was - US $11.99
or Best Offer
$8.00 shipping
+^ &FW* ]T w.?!T |/ 6F $KS
DB9 RS232 Serial Cable Female to Female Null Modem Cord Full Handshaking 7 Wi...
Brand New
$14.96
Free shipping
LE 1+^ &* Y] w.?W!|/ $K
Cascade RS-232 56 K Baud Low Power Modem for harsh conditions - Used
Pre-Owned
$19.99
or Best Offer
Free shipping
+L^E N V&* ] w.V?!L OP|/ O$
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
+H^ 2 1&*X ] wG.?!|Y 97/ $
10 ft Cross Wired DB9 Female to DB25 Male Serial Port To RS232 Modem Cable
Brand New · StarTech
$9.25
or Best Offer
$7.01 shipping
+NP^ E 8&* 4] Vw.?!| /V2 9$
10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 F to DB-9 F - 10 ...
Brand New · StarTech
(1)
$8.24
Free shipping
+Q8 ^ &JS * 1M] w .?6!K|/ $
USRobotics V.92 56K Faxmodem 5686 (No Ac Adapter)
Pre-Owned · USRobotics
(2)
$31.50
Was: $45.00was - US $45.00
or Best Offer
Free shipping
Z+^S 1 8&* ]1 w.Q? !O|/ C$
New Hayes 03328-A Accura 56K FaxModem V.90 RS-232 Modem H08-03328
Open Box · Hayes
$49.00
or Best Offer
$25.98 shipping
SZ +^V9 & *32 ] w.?! |A/K $
DSI Digicom System Software & Modem Installation-A Subsidiary Of Creative - Mint
Pre-Owned · Creative
$16.97
or Best Offer
$4.52 shipping
+LB ^R V &* ]JM Vw1.? CI !|/ $
MultiTech Multiconnect Cell 100 Series Modem MTC-MNA1-B01
Brand New · MultiTech
$25.95
$9.50 shipping
LU+^ Y6& * ]VP w.?! |G/ X $
Practical Peripherals 14400FXSA External Modem V32Bis-w/o Box or Power Supply
Pre-Owned · PPC
$24.98
$13.10 shipping
+YC ^ A&*1 ] SG wO.?!|/5 $
5362US HAYES OPTIMA 56K External MODEM Version 7.0 Rare
Pre-Owned · Hayes
$39.99
Free shipping
+^ T&X* ] 7w0.?! |B/Y $ U2
AirLink Raven X V4221-V cellular connection modem
Pre-Owned · Airlink
$39.99
$9.90 shipping
+^2Z &* AE S]0 V w.?!|R/ $S p o n s o r e d
Acorp M56SCD 56k v.92 External Dial-up Modem
Pre-Owned
$19.99
$35.00 shipping
+A0^ 8&* ] w2 .2?!3 |S/ $FS p o n s o r e d

Serial (RS-232) Computer Modems

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324 Results

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

Cox 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

(Lot of 12) US Robotics V.92 Model# 5686 External Modem + Fax

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

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

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

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

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

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

MultiTech Multiconnect Cell 100 Series Modem MTC-MNA1-B01

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

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

Fax Cube RS232 C

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

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

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

Vintage US Robotics Courier V.Everything Modem

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

Sierra Wireless Modem LX40

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

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

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

New Sierra Wireless GL6100 RS232 Modem with Accessories FREE SHIPPING

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

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

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

Sierra Wireless GL6100 Modem Kit RS232 32V

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

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

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

US Robotics 0462 Sportster Voice 56K External Fax Modem with Voice Mail

U.S.Robotics V.92 0701 MODEM 5686

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

Versitron RS-232 M8215-DCE Fiber Optic Micro Modem

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

Sierra Wireless G2212-C Airlink Raven XT

Original MultiTech MTC-MNA1-B01 CAT M1 Cellular Modem

Hayes Accura 366 V.34 Fax Modem 5914US

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

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

MultiTech Multi-Tech LTE Cat 3 Modem (RS232)

US Robotics Courier 56K Modem 3453

USRobotics 3453C Courier 56k External Business Modem

Signalman Modem Anchor Automation Mark II Atari Vintage Gaming

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

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

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

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

10' RS232 Serial Null Modem Cable - Null modem cable - DB-9 F to DB-9 F - 10 ...

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

New Hayes 03328-A Accura 56K FaxModem V.90 RS-232 Modem H08-03328

DSI Digicom System Software & Modem Installation-A Subsidiary Of Creative - Mint

MultiTech Multiconnect Cell 100 Series Modem MTC-MNA1-B01

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

5362US HAYES OPTIMA 56K External MODEM Version 7.0 Rare

AirLink Raven X V4221-V cellular connection modem

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

Best Selling

USRobotic 5686G V92 & V90 External Faxmodem

Startech.com SCNM9FF Serial Modem Cable

Multitech Systems MTC-MNA1-B01 Lte Cat M1 Modem Rs-232 Interface (mtcmna1b01)

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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