Serial RS-232 Internal Port Expansion Cards

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1,060 Results

VScom 400H v3 Universal PCI 4x RS232 2x DB9 uPCI-400H Card UART Serial Interface
Pre-Owned
$29.99
or Best Offer
$5.14 shipping
FarSite Communications FarSync T2U PCI synchronous communication card FS4240
Pre-Owned
$69.00
or Best Offer
$4.44 shipping
SEALEVEL 7205ec Rev D-1 Ultra COMM+2.PCIe RS-232/422/485 PCIe IC983C-R2
Pre-Owned
$149.99
or Best Offer
$4.44 shipping
C973C RS-232/422/485 PCI Card 2-Port with Opto Isolation 16850 UART DESCRIPTION
Pre-Owned · Unbranded
$40.00
or Best Offer
$9.29 shipping
StarTech 2-Port PCI Express RS232 Serial Adapter Card 16550 UART (PEX2S553)
Open Box · StarTech
$19.99
or Best Offer
Free shipping
Startech.com 2 Port PCIe RS-232 Serial Card Low Profile PEX2S952LP 16950 UART
Pre-Owned · StarTech
$16.99
or Best Offer
Free shipping
90 sold
HP Internal Serial Port (405/600/705/800)
Brand New · HP
(2)
$12.99
or Best Offer
Free shipping
Dell 0NT0HM 1 Port Serial RS232 Desktop PCIe Card Low Profile NT0HM
Brand New · Dell
$10.88
Free shipping
Dell Sunix Serial RS-232 Parallel PCIe Expansion Card YCJ65
Pre-Owned · Dell
$10.97
or Best Offer
Free shipping
(BRAND NEW) Vitex ISA BUS Controller 16550 RS232 ISA Serial Card
Brand New
$18.75
$5.99 shipping
85 sold
Dell 0NT0HM 1 Port Serial RS232 Desktop PCIe Card Low Profile NT0HM
Pre-Owned · Dell
$9.99
or Best Offer
Free shipping
92 sold
Advantech PCIE-1602C-AE Dual RS-232/422/485 High Speed Serial Port PCI-E Card
Brand New · Advantech
$55.00
or Best Offer
Free shipping
50 sold
PCI-E Express Serial COM DB9 RS232 + DB25 Printer LPT Port Card US Stock
Brand New · Unbranded
$15.99
Free shipping
65 sold
StarTech 8-Port RS-232/RS-422/RS-485 Serial COM Port Adapter Card PEX8S232485
Pre-Owned · StarTech
$119.99
Was: $149.99was - US $149.99
or Best Offer
$8.69 shipping
Oxford OXuPCI954 4 Serial RS-232 Ports PCMCIA Adapter w/Cable
Pre-Owned
$49.99
or Best Offer
$12.57 shipping
Digi AccelePort 4r 920-PCI DB25 Cable 70001361 (A0935)
Open Box · Digi
$99.99
or Best Offer
Free shipping
PCI 2 Port Serial RS232 DB9 Controller Adapter Card
Brand New · Unbranded
$9.98
Free shipping
194 sold
Dell Expansion Card 5R3FC YCJ65 Serial RS-232 (DB9) Parallel LPT (DB25) Ports MT
Pre-Owned · Dell
$18.95
or Best Offer
Free shipping
X-MEDIA XM-PEX-4S | 4-Port DB9 RS232 Serial PCI Express PCIe Card Breakout Cable
Brand New
$35.99
Was: $39.99was - US $39.99
Free shipping
StarTech 1 Port Low Profile PCI Express Serial Card 16950 UART RS232 PEX1S952LP
Brand New · StarTech
$14.99
Free shipping
HP Lite-On KB661701 320302-001 PCI-2S1P GP Serial DB-9 Parallel DB-25 PCI Card
Pre-Owned · HP
$10.95
Free shipping
COMTROL 5002195 ROCKETPORT uPCI 8 PORT RJ RJ11 SERIAL PCI CARD 99415-2
Pre-Owned · Comtrol
$43.95
Free shipping
COMTROL 5002290 ROCKETPORT uPCI 16P 16 PORT SERIAL PCI CARD 99355-1
Pre-Owned · Comtrol
$79.00
Free shipping
Vantec Single-Port RS-232 PCIe Host Card P/N: UGT-PCE10SR Tested Working
Pre-Owned · Vantec
$14.99
Free shipping
1 Port Serial Express Card Adapter
Brand New · Syba
$30.00
Free shipping
SIIG Legacy & Beyond Series Quad (4 Port) Serial RS-232 PCIe Card New Old Stock
Brand New · SIIG
$30.00
or Best Offer
Free shipping
Lot of 5 DELL Sunix RS-232 Low Profile Serial Port PCI-E Interface Card NT0HM
Pre-Owned · Dell
$19.97
or Best Offer
Free shipping
STARTECH.COM PEX2S553 2PORT PCI EXPRESS RS232 SERIAL
Brand New · StarTech
$35.70
Was: $42.00was - US $42.00
or Best Offer
Free shipping
PCIE COM CARD 2-PORT RS-232/422/485 PCIE-1602B-AE
Open Box · Advantech
$229.00
or Best Offer
$21.56 shipping
SIIG CyberSerial Dual RS-232 9-Pin PCIe Card Adapter
Brand New · SIIG
$24.95
or Best Offer
$9.99 shipping
SIIG Suntek I/O Extension Serial Parallel ISA Expansion Card
Pre-Owned · SIIG
$70.56
or Best Offer
$13.69 shipping
VSCom PCI Express card ADD-on PCIex-800e
Pre-Owned
$34.95
$3.95 shipping
Brainboxes VX-001 1 Port RS232 ExpressCard Serial Adapter
Pre-Owned · Brainboxes
$31.97
$4.41 shipping
SIIG 16550 Single-Port RS-232 PCIe Serial Card P/N: JJ-P01012 Tested Working
Pre-Owned · SIIG
$19.99
Free shipping
StarTech 2-Port PCI Express RS232 Serial Adapter Card 16550 UART (PEX2S553)
Open Box · StarTech
$15.00
$6.40 shipping
Siig JJ-E20311-S1 DP Cyber 1S1P PCIe Card Serial/Parallel Combo Adapter
Brand New · SIIG
$19.50
Free shipping
HP 400 600 800 G3 PS2 Serial Port Card Low 910324-001 910110-002 902760-002
Pre-Owned · HP
$12.75
or Best Offer
Free shipping
Dell RS-232 DB9 Serial Low Profile PCIe Interface Card 0NT0HM NT0HM
Pre-Owned · Dell
(1)
$9.99
Free shipping
AD400E Acksys Converter RS232 To RS422 Or RS485 Complete New
Brand New
$137.04
$21.65 shipping
Lot 2x SIIG P041-00G3X PCI Card Adapter 2 Port RS232 JJ-P20511-S2
Pre-Owned · SIIG
$24.99
or Best Offer
Free shipping
HP Z440 StarTech PCI2S1P PCI to Serial RS-232 Parallel Port IEEE 1284 Combo Card
Pre-Owned · StarTech
(1)
$13.95
or Best Offer
Free shipping
Only 1 left!
New Dell 39G9N Single Port Serial RS-232 PCI-E Adapter Card Open Box
Open Box · Dell
$21.37
or Best Offer
$11.69 shipping
IO CREST 2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SI-ADA15070
Open Box · Syba
$24.49
Free shipping
Only 1 left!
StarTech 2S1P PCI Express Serial Parallel Combo Card - 2 x 9-pin DB-9 Male
RS-232 Serial (pex2s1p553b)
Brand New · StarTech
$62.07
Free shipping
PCI-E Express Dual 2 Ports DB9 RS232 Serial Controller Card Adapter US Stock
Brand New · Unbranded
$12.99
Free shipping
DIGI 70001361 50001548-01 ACCELEPORT 4R 920 PCI ADAPTER WITH CABLE OPEN BOX
Open Box · Digi
$195.00
or Best Offer
$9.44 shipping
RS232 Serial Port 8-Port PCIE Serial Expansion card Expansion Adapter Riser Card
Brand New
$41.39
Was: $49.99was - US $49.99
or Best Offer
$3.00 shipping
PCIE To RS232 2-Port Serial WCH382 Chip PCI-Express Extender Board Adapter Card
Brand New
$16.63
or Best Offer
Free shipping
5002505G Comtrol 5002505 PCI RocketPort Express Octa Serial Port Expansion Card
Pre-Owned · Comtrol
$43.99
Free shipping
NetMos 1 Port Single Parallel Port PCI 32-bit Card
Brand New · Syba
$14.99
Free shipping
Cylix Isolated Loop Circuit Surge Protector DB25-RS232 RS-232
Brand New
$13.99
$7.66 shipping
Only 1 left!
SYBA Full Height PCI-Express 2-Port RS232 Serial Card - RoHS Model SD-PEX15022
Pre-Owned · Syba
(1)
$9.49
Free shipping
Sealed SIIG CyberSerial 2-port PCI Express Serial Adapter 9-Pin 16950 UART
Brand New · SIIG
(1)
$43.99
Free shipping
StarTech.com 2 Port PCI RS232 Serial Adapter Card with 16950 UART - Dual Voltage
Brand New · StarTech
$30.00
Free shipping
DIGI 50000606-01 128 PORT ACCELEPORT ASYNC C/X AIX HOST ADAPTER PCI 55000598-03
Pre-Owned · Digi
$39.95
Trending at $45.28
Free shipping
NEW StarTech 1 Port Low Profile PCI Express Serial Card UART RS232 PEX1S952LP
Open Box · StarTech
$12.24
or Best Offer
$6.20 shipping
Dell Sunix DB9 Serial Port RS-232 PCIe Interface Low Profile Card
Pre-Owned · Dell
(1)
$12.98
Free shipping
Moxa CP-168U 8-Port RS-232 Universal PCI communication board
Brand New
$89.99
or Best Offer
Trending at $98.88
Free shipping
RAYON P5588U PCI Card 8-port RS232/422 Each Selectable 5V Only PCI Card
Pre-Owned
$79.99
or Best Offer
Free shipping
Eaton PXMCE-B Com Expansion Card | Ethernet 100FX, 10/100T, RS-485, RS-232
Pre-Owned
$895.00
or Best Offer
$14.59 shipping

Best Selling

See All

StarTech 1 Port Low Profile PCI Express X1 Serial Card PEX1S952LP
$14.99 New
$9.00 Used
HP 3TK82AA Internal Serial Port for Select EliteDesk and ProDesk
(2)
$12.99 New
A52920 Syba Sd-pci-1p PCI to Parallel 1 Port Host Controller Card
$14.99 New
$13.99 Used
Startech 21050-PC-SERIAL-LP CONNECT SERIAL RS232 (DB9) DEVICES WITH THIS PC SERI
$66.74 New
StarTech PEX16S550LP 16port PCI Express Serial Card
$419.06 New
$25.00 Used
Startech PS74ADF-SERIAL-CARD 4-PORT SERIAL PCIE CARD - PCI EXPRESS RS232/RS422/R
$191.57 New
StarTech 2s1p PCI Express Serial Parallel Combo Card
$62.07 New
$18.88 Used
PEX2S553LP StarTech 2 Port Low Profile Native Rs232 PCI Express Serial Card
$60.88 New
$16.99 Used

Brand

Compatible Port

Serial RS-232 Internal Port Expansion Cards

Shop by Category

1,060 Results

VScom 400H v3 Universal PCI 4x RS232 2x DB9 uPCI-400H Card UART Serial Interface

FarSite Communications FarSync T2U PCI synchronous communication card FS4240

SEALEVEL 7205ec Rev D-1 Ultra COMM+2.PCIe RS-232/422/485 PCIe IC983C-R2

C973C RS-232/422/485 PCI Card 2-Port with Opto Isolation 16850 UART DESCRIPTION

StarTech 2-Port PCI Express RS232 Serial Adapter Card 16550 UART (PEX2S553)

Startech.com 2 Port PCIe RS-232 Serial Card Low Profile PEX2S952LP 16950 UART

HP Internal Serial Port (405/600/705/800)

Dell 0NT0HM 1 Port Serial RS232 Desktop PCIe Card Low Profile NT0HM

Dell Sunix Serial RS-232 Parallel PCIe Expansion Card YCJ65

(BRAND NEW) Vitex ISA BUS Controller 16550 RS232 ISA Serial Card

Dell 0NT0HM 1 Port Serial RS232 Desktop PCIe Card Low Profile NT0HM

Advantech PCIE-1602C-AE Dual RS-232/422/485 High Speed Serial Port PCI-E Card

PCI-E Express Serial COM DB9 RS232 + DB25 Printer LPT Port Card US Stock

StarTech 8-Port RS-232/RS-422/RS-485 Serial COM Port Adapter Card PEX8S232485

Oxford OXuPCI954 4 Serial RS-232 Ports PCMCIA Adapter w/Cable

Digi AccelePort 4r 920-PCI DB25 Cable 70001361 (A0935)

PCI 2 Port Serial RS232 DB9 Controller Adapter Card

Dell Expansion Card 5R3FC YCJ65 Serial RS-232 (DB9) Parallel LPT (DB25) Ports MT

X-MEDIA XM-PEX-4S | 4-Port DB9 RS232 Serial PCI Express PCIe Card Breakout Cable

StarTech 1 Port Low Profile PCI Express Serial Card 16950 UART RS232 PEX1S952LP

HP Lite-On KB661701 320302-001 PCI-2S1P GP Serial DB-9 Parallel DB-25 PCI Card

COMTROL 5002195 ROCKETPORT uPCI 8 PORT RJ RJ11 SERIAL PCI CARD 99415-2

COMTROL 5002290 ROCKETPORT uPCI 16P 16 PORT SERIAL PCI CARD 99355-1

Vantec Single-Port RS-232 PCIe Host Card P/N: UGT-PCE10SR Tested Working

1 Port Serial Express Card Adapter

SIIG Legacy & Beyond Series Quad (4 Port) Serial RS-232 PCIe Card New Old Stock

Lot of 5 DELL Sunix RS-232 Low Profile Serial Port PCI-E Interface Card NT0HM

STARTECH.COM PEX2S553 2PORT PCI EXPRESS RS232 SERIAL

PCIE COM CARD 2-PORT RS-232/422/485 PCIE-1602B-AE

SIIG CyberSerial Dual RS-232 9-Pin PCIe Card Adapter

SIIG Suntek I/O Extension Serial Parallel ISA Expansion Card

VSCom PCI Express card ADD-on PCIex-800e

Brainboxes VX-001 1 Port RS232 ExpressCard Serial Adapter

SIIG 16550 Single-Port RS-232 PCIe Serial Card P/N: JJ-P01012 Tested Working

StarTech 2-Port PCI Express RS232 Serial Adapter Card 16550 UART (PEX2S553)

Siig JJ-E20311-S1 DP Cyber 1S1P PCIe Card Serial/Parallel Combo Adapter

HP 400 600 800 G3 PS2 Serial Port Card Low 910324-001 910110-002 902760-002

Dell RS-232 DB9 Serial Low Profile PCIe Interface Card 0NT0HM NT0HM

AD400E Acksys Converter RS232 To RS422 Or RS485 Complete New

Lot 2x SIIG P041-00G3X PCI Card Adapter 2 Port RS232 JJ-P20511-S2

HP Z440 StarTech PCI2S1P PCI to Serial RS-232 Parallel Port IEEE 1284 Combo Card

New Dell 39G9N Single Port Serial RS-232 PCI-E Adapter Card Open Box

IO CREST 2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SI-ADA15070

StarTech 2S1P PCI Express Serial Parallel Combo Card - 2 x 9-pin DB-9 Male

PCI-E Express Dual 2 Ports DB9 RS232 Serial Controller Card Adapter US Stock

DIGI 70001361 50001548-01 ACCELEPORT 4R 920 PCI ADAPTER WITH CABLE OPEN BOX

RS232 Serial Port 8-Port PCIE Serial Expansion card Expansion Adapter Riser Card

PCIE To RS232 2-Port Serial WCH382 Chip PCI-Express Extender Board Adapter Card

5002505G Comtrol 5002505 PCI RocketPort Express Octa Serial Port Expansion Card

NetMos 1 Port Single Parallel Port PCI 32-bit Card

Cylix Isolated Loop Circuit Surge Protector DB25-RS232 RS-232

SYBA Full Height PCI-Express 2-Port RS232 Serial Card - RoHS Model SD-PEX15022

Sealed SIIG CyberSerial 2-port PCI Express Serial Adapter 9-Pin 16950 UART

StarTech.com 2 Port PCI RS232 Serial Adapter Card with 16950 UART - Dual Voltage

DIGI 50000606-01 128 PORT ACCELEPORT ASYNC C/X AIX HOST ADAPTER PCI 55000598-03

NEW StarTech 1 Port Low Profile PCI Express Serial Card UART RS232 PEX1S952LP

Dell Sunix DB9 Serial Port RS-232 PCIe Interface Low Profile Card

Moxa CP-168U 8-Port RS-232 Universal PCI communication board

RAYON P5588U PCI Card 8-port RS232/422 Each Selectable 5V Only PCI Card

Eaton PXMCE-B Com Expansion Card | Ethernet 100FX, 10/100T, RS-485, RS-232

Best Selling

StarTech 1 Port Low Profile PCI Express X1 Serial Card PEX1S952LP

HP 3TK82AA Internal Serial Port for Select EliteDesk and ProDesk

A52920 Syba Sd-pci-1p PCI to Parallel 1 Port Host Controller Card

Startech 21050-PC-SERIAL-LP CONNECT SERIAL RS232 (DB9) DEVICES WITH THIS PC SERI

StarTech PEX16S550LP 16port PCI Express Serial Card

Startech PS74ADF-SERIAL-CARD 4-PORT SERIAL PCIE CARD - PCI EXPRESS RS232/RS422/R

StarTech 2s1p PCI Express Serial Parallel Combo Card

PEX2S553LP StarTech 2 Port Low Profile Native Rs232 PCI Express Serial Card

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