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Sponsored
$98.91
Startech.Com 4 Port PCI Express RS232 Serial Adapter Card - Single-Lane PCI Express - Breakout Cable - RS232 Extension - Pcie Serial Card (PEX4S553B)
Amazon.com
355
Free shipping
$98.91
Startech.Com 4 Port PCI Express RS232 Serial Adapter Card - Single-Lane PCI Express - Breakout Cable - RS232 Extension - Pcie Serial Card (PEX4S553B)
Amazon.com
355
$43.36
Startech.Com 2-Port PCI Express Serial Card With 16C1050 UART - RS232 Low Profile Serial Card - PCI Serial Card, TAA (PEX2S1050)
Amazon.com
47
Free shipping
$43.36
Startech.Com 2-Port PCI Express Serial Card With 16C1050 UART - RS232 Low Profile Serial Card - PCI Serial Card, TAA (PEX2S1050)
Amazon.com
47
$23.97
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card - Pcie Serial DB9 Controller Card 16950 UART - Low Profile - Windows/Linux - 1 Port PCI Expr
Tech for Less
5
$23.97
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card - Pcie Serial DB9 Controller Card 16950 UART - Low Profile - Windows/Linux - 1 Port PCI Expr
Tech for Less
5
$103.04
$112.00
Ethercat Bus IO Card, Digital/Analog Input And Output Expansion Card, Counter 485 Serial Port Card,
AliExpress
Free shipping
$103.04
$112.00
Ethercat Bus IO Card, Digital/Analog Input And Output Expansion Card, Counter 485 Serial Port Card,
AliExpress
Free shipping
$39.98
Gearmo 4 Port USB To Serial RS232 Adapter FTDI Chipset, Supports Win 11, 10, 8, 7, Linux, Mac W/ESD And Surge Protection
Amazon.com
Free shipping
$39.98
Gearmo 4 Port USB To Serial RS232 Adapter FTDI Chipset, Supports Win 11, 10, 8, 7, Linux, Mac W/ESD And Surge Protection
Amazon.com
Free shipping
$298.38
ADVANTECH Serial Port Card PCIE-1612C-AE
TME.COM
$298.38
ADVANTECH Serial Port Card PCIE-1612C-AE
TME.COM
$197.51
Brainboxes ES-257 2 PORT RS232 ETHERNET TO SERIAL
DigiKey
$197.51
Brainboxes ES-257 2 PORT RS232 ETHERNET TO SERIAL
DigiKey
$126.23
Brainboxes ES-246 1 PORT RS232 ETHERNET TO SERIAL
DigiKey
1
$126.23
Brainboxes ES-246 1 PORT RS232 ETHERNET TO SERIAL
DigiKey
1
$133.49
Acces PCIE-COM232-8 Low Profile PCI Express Multi-Port Serial Communication Cards - 232 Ports - 3ft Cable
Tech for Less
$133.49
Acces PCIE-COM232-8 Low Profile PCI Express Multi-Port Serial Communication Cards - 232 Ports - 3ft Cable
Tech for Less
$498.00
Sangoma A142EE3611 2 Port PCI Serial Card: E1A530 Interface.
TheTelecomSpot.com
$498.00
Sangoma A142EE3611 2 Port PCI Serial Card: E1A530 Interface.
TheTelecomSpot.com
$127.99
Advantech 2-Port Rs-232/422/485 Pcie Comm. Card
Zoro.com
$127.99
Advantech 2-Port Rs-232/422/485 Pcie Comm. Card
Zoro.com
$438.08
Brainboxes ES-701 4 PORT RS232 ETHERNET TO SERIAL
DigiKey
$438.08
Brainboxes ES-701 4 PORT RS232 ETHERNET TO SERIAL
DigiKey
$705.50
Sangoma A144X3913 4 Port PCI Serial Card: X.21 Interface.
TheTelecomSpot.com
$705.50
Sangoma A144X3913 4 Port PCI Serial Card: X.21 Interface.
TheTelecomSpot.com
$31.79
Tripp-Lite PCI-D9-02 2-Port DB9 RS232 PCI Express Serial Adapter Card
Southern Electronics
$31.79
Tripp-Lite PCI-D9-02 2-Port DB9 RS232 PCI Express Serial Adapter Card
Southern Electronics
$107.00
Advantech Corporation ADAM-4571L-DE 1-PORT RS-232 SRIAL DVC SERVR
DigiKey
$107.00
Advantech Corporation ADAM-4571L-DE 1-PORT RS-232 SRIAL DVC SERVR
DigiKey
$98.00
Tripp-Lite PCE-D9-04-CBL 4-Port DB9 RS232 PCI Express Serial Card Pcie W/Breakout Cable
Southern Electronics
$98.00
Tripp-Lite PCE-D9-04-CBL 4-Port DB9 RS232 PCI Express Serial Card Pcie W/Breakout Cable
Southern Electronics
$112.35
Iocrest 8 Port DB9 Serial Rs-232 PCI-E X1 Controller Card With Low Profile Bracket
Walmart
Free shipping
$112.35
Iocrest 8 Port DB9 Serial Rs-232 PCI-E X1 Controller Card With Low Profile Bracket
Walmart
Free shipping
$78.21
Siig 2-Port 9-Pin Serial Ports PCI Card Model Jj-P20511-S3
Walmart
1
Free shipping
$78.21
Siig 2-Port 9-Pin Serial Ports PCI Card Model Jj-P20511-S3
Walmart
1
$27.32
Syba SD-PEX15021, Single Port DB9 Serial Pcie 1.0 X1 Card
PrimeBuy
9
$27.32
Syba SD-PEX15021, Single Port DB9 Serial Pcie 1.0 X1 Card
PrimeBuy
9
$4.77
Expansion Card Replacement PCI To Serial Port COM 9 Pin RS232 DB9 Desktop Industrial Control
Aliexpress
$4.77
Expansion Card Replacement PCI To Serial Port COM 9 Pin RS232 DB9 Desktop Industrial Control
Aliexpress
$30.52
SIIG Dual-Serial Port / RS-232 Pcie Card
COLAMCO, Inc.
30-day returns (most items)
$30.52
SIIG Dual-Serial Port / RS-232 Pcie Card
COLAMCO, Inc.
30-day returns
$48.79
Pcie 4X Port Serial DB9 Card, WCH Ch384 Chipset, Fan-Out Cable
Walmart
Free shipping
$48.79
Pcie 4X Port Serial DB9 Card, WCH Ch384 Chipset, Fan-Out Cable
Walmart
Free shipping
$82.00
For Mini Pci-E-Rs232 Serial Card 9-Pin COM 2 Port Expansion Card Xr17v352 Exar 352 Industrial Serial Rs232 Mini Pcie Db9
Walmart
Free shipping
$82.00
For Mini Pci-E-Rs232 Serial Card 9-Pin COM 2 Port Expansion Card Xr17v352 Exar 352 Industrial Serial Rs232 Mini Pcie Db9
Walmart
Free shipping
$473.30
Startech Pex16s550lp PCI Express Serial Card - 16 Port Low-Profile Serial Card - High-Speed Pcie Serial Adapter - Serial Controller DB9 Rs232
Walmart
326
Free shipping
$473.30
Startech Pex16s550lp PCI Express Serial Card - 16 Port Low-Profile Serial Card - High-Speed Pcie Serial Adapter - Serial Controller DB9 Rs232
Walmart
326
$98.20
For 4 Db-9 Serial Rs232 Ports Pcie Controller Card With 1 TTL Port With Fan-Out Cable
Walmart
Free shipping
$98.20
For 4 Db-9 Serial Rs232 Ports Pcie Controller Card With 1 TTL Port With Fan-Out Cable
Walmart
Free shipping
$192.99
Advantech 2-Port Rs-232/422/485 Pcie Comm. Card W/Iso
Zoro.com
$192.99
Advantech 2-Port Rs-232/422/485 Pcie Comm. Card W/Iso
Zoro.com
$5.98
Dual RS232 Serial COM To PCI Express Expansion Card PCIE DB9 Adapter AX99100 Chip For Desktop PC
Aliexpress
$5.98
Dual RS232 Serial COM To PCI Express Expansion Card PCIE DB9 Adapter AX99100 Chip For Desktop PC
Aliexpress
$38.21
Syba SD-PEX15011, 4X Serial Ports PCI-Express Card
PrimeBuy
$38.21
Syba SD-PEX15011, 4X Serial Ports PCI-Express Card
PrimeBuy
$150.94
Startech.Com Pex4s953lp 4 Port Pci Express Rs232 Serial Controller Card W/16950
eBay.com
Free shipping
$150.94
Startech.Com Pex4s953lp 4 Port Pci Express Rs232 Serial Controller Card W/16950
eBay.com
Free shipping
$513.99
Pci Express Serial Card - 16 Db9 Rs232 Ports - Low + Full Profile -
eBay
Free shipping
$513.99
Pci Express Serial Card - 16 Db9 Rs232 Ports - Low + Full Profile -
eBay
Free shipping
$233.99
Ezgeneration EZ3758557 8-Port Pci Express Rs232 Serial Adapter Card Wi
Zoro.com
$233.99
Ezgeneration EZ3758557 8-Port Pci Express Rs232 Serial Adapter Card Wi
Zoro.com
$35.85
Siig JJ-P20511-S3 . 2-Port Serial 550-Value
Zoro.com
1
$35.85
Siig JJ-P20511-S3 . 2-Port Serial 550-Value
Zoro.com
1
$29.69
Syba SD-PEX15022, 2 Port DB9 Serial PCI-Express 2.0 X1 Card
PrimeBuy
$29.69
Syba SD-PEX15022, 2 Port DB9 Serial PCI-Express 2.0 X1 Card
PrimeBuy
$73.79
Startech.Com Pex1s953lp 1 Port Pci Express Rs232 Serial Controller Card W/16950
eBay.com
Free shipping
$73.79
Startech.Com Pex1s953lp 1 Port Pci Express Rs232 Serial Controller Card W/16950
eBay.com
Free shipping
$21.19
Syba SD-PEX15021 Pcie 1X Db9 Port Serial Card, Moschip 9901 Chipset, W
Zoro.com
9
$21.19
Syba SD-PEX15021 Pcie 1X Db9 Port Serial Card, Moschip 9901 Chipset, W
Zoro.com
9
$102.99
Antaira 2-Port Rs-232 + 1-Port Parallel Pci Express Card, Low Profile Power Over Pin-9)
Zoro.com
$102.99
Antaira 2-Port Rs-232 + 1-Port Parallel Pci Express Card, Low Profile Power Over Pin-9)
Zoro.com
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    Shop serial port card

    Sponsored
    $98.91
    Startech.Com 4 Port PCI Express RS232 Serial Adapter Card - Single-Lane PCI Express - Breakout Cable - RS232 Extension - Pcie Serial Card (PEX4S553B)
    Amazon.com
    355
    Free shipping
    $98.91
    Startech.Com 4 Port PCI Express RS232 Serial Adapter Card - Single-Lane PCI Express - Breakout Cable - RS232 Extension - Pcie Serial Card (PEX4S553B)
    Amazon.com
    355
    $43.36
    Startech.Com 2-Port PCI Express Serial Card With 16C1050 UART - RS232 Low Profile Serial Card - PCI Serial Card, TAA (PEX2S1050)
    Amazon.com
    47
    Free shipping
    $43.36
    Startech.Com 2-Port PCI Express Serial Card With 16C1050 UART - RS232 Low Profile Serial Card - PCI Serial Card, TAA (PEX2S1050)
    Amazon.com
    47
    $23.97
    Startech.Com 1-Port PCI Express RS232 Serial Adapter Card - Pcie Serial DB9 Controller Card 16950 UART - Low Profile - Windows/Linux - 1 Port PCI Expr
    Tech for Less
    5
    $23.97
    Startech.Com 1-Port PCI Express RS232 Serial Adapter Card - Pcie Serial DB9 Controller Card 16950 UART - Low Profile - Windows/Linux - 1 Port PCI Expr
    Tech for Less
    5
    $103.04
    $112.00
    Ethercat Bus IO Card, Digital/Analog Input And Output Expansion Card, Counter 485 Serial Port Card,
    AliExpress
    Free shipping
    $103.04
    $112.00
    Ethercat Bus IO Card, Digital/Analog Input And Output Expansion Card, Counter 485 Serial Port Card,
    AliExpress
    Free shipping
    $39.98
    Gearmo 4 Port USB To Serial RS232 Adapter FTDI Chipset, Supports Win 11, 10, 8, 7, Linux, Mac W/ESD And Surge Protection
    Amazon.com
    Free shipping
    $39.98
    Gearmo 4 Port USB To Serial RS232 Adapter FTDI Chipset, Supports Win 11, 10, 8, 7, Linux, Mac W/ESD And Surge Protection
    Amazon.com
    Free shipping
    $298.38
    ADVANTECH Serial Port Card PCIE-1612C-AE
    TME.COM
    $298.38
    ADVANTECH Serial Port Card PCIE-1612C-AE
    TME.COM
    $197.51
    Brainboxes ES-257 2 PORT RS232 ETHERNET TO SERIAL
    DigiKey
    $197.51
    Brainboxes ES-257 2 PORT RS232 ETHERNET TO SERIAL
    DigiKey
    $126.23
    Brainboxes ES-246 1 PORT RS232 ETHERNET TO SERIAL
    DigiKey
    1
    $126.23
    Brainboxes ES-246 1 PORT RS232 ETHERNET TO SERIAL
    DigiKey
    1
    $133.49
    Acces PCIE-COM232-8 Low Profile PCI Express Multi-Port Serial Communication Cards - 232 Ports - 3ft Cable
    Tech for Less
    $133.49
    Acces PCIE-COM232-8 Low Profile PCI Express Multi-Port Serial Communication Cards - 232 Ports - 3ft Cable
    Tech for Less
    $498.00
    Sangoma A142EE3611 2 Port PCI Serial Card: E1A530 Interface.
    TheTelecomSpot.com
    $498.00
    Sangoma A142EE3611 2 Port PCI Serial Card: E1A530 Interface.
    TheTelecomSpot.com
    $127.99
    Advantech 2-Port Rs-232/422/485 Pcie Comm. Card
    Zoro.com
    $127.99
    Advantech 2-Port Rs-232/422/485 Pcie Comm. Card
    Zoro.com
    $438.08
    Brainboxes ES-701 4 PORT RS232 ETHERNET TO SERIAL
    DigiKey
    $438.08
    Brainboxes ES-701 4 PORT RS232 ETHERNET TO SERIAL
    DigiKey
    $705.50
    Sangoma A144X3913 4 Port PCI Serial Card: X.21 Interface.
    TheTelecomSpot.com
    $705.50
    Sangoma A144X3913 4 Port PCI Serial Card: X.21 Interface.
    TheTelecomSpot.com
    $31.79
    Tripp-Lite PCI-D9-02 2-Port DB9 RS232 PCI Express Serial Adapter Card
    Southern Electronics
    $31.79
    Tripp-Lite PCI-D9-02 2-Port DB9 RS232 PCI Express Serial Adapter Card
    Southern Electronics
    $107.00
    Advantech Corporation ADAM-4571L-DE 1-PORT RS-232 SRIAL DVC SERVR
    DigiKey
    $107.00
    Advantech Corporation ADAM-4571L-DE 1-PORT RS-232 SRIAL DVC SERVR
    DigiKey
    $98.00
    Tripp-Lite PCE-D9-04-CBL 4-Port DB9 RS232 PCI Express Serial Card Pcie W/Breakout Cable
    Southern Electronics
    $98.00
    Tripp-Lite PCE-D9-04-CBL 4-Port DB9 RS232 PCI Express Serial Card Pcie W/Breakout Cable
    Southern Electronics
    $112.35
    Iocrest 8 Port DB9 Serial Rs-232 PCI-E X1 Controller Card With Low Profile Bracket
    Walmart
    Free shipping
    $112.35
    Iocrest 8 Port DB9 Serial Rs-232 PCI-E X1 Controller Card With Low Profile Bracket
    Walmart
    Free shipping
    $78.21
    Siig 2-Port 9-Pin Serial Ports PCI Card Model Jj-P20511-S3
    Walmart
    1
    Free shipping
    $78.21
    Siig 2-Port 9-Pin Serial Ports PCI Card Model Jj-P20511-S3
    Walmart
    1