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$46.96
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card - Pcie RS232 Serial Host Controller Card - Pcie To Serial DB9 - 16950 UART - Low Profile
Amazon.com
6
Free shipping
$46.96
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card - Pcie RS232 Serial Host Controller Card - Pcie To Serial DB9 - 16950 UART - Low Profile
Amazon.com
6
$21.98
Pcie Combo Serial Parallel Expansion Card PCI Express To Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip For Desktop PC
Amazon.com
80
$21.98
Pcie Combo Serial Parallel Expansion Card PCI Express To Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip For Desktop PC
Amazon.com
80
$48.01
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card
DealsZone99
6
Free shipping
$48.01
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card
DealsZone99
6
$72.60
Startech 1-Port Pcie RS-232 Serial Card | 921.6Kbps | 11050-PC-SERIAL-CARD
Sellizo
$72.60
Startech 1-Port Pcie RS-232 Serial Card | 921.6Kbps | 11050-PC-SERIAL-CARD
Sellizo
$68.67
Startech 1-Port Pcie RS232 DB9 Serial Card 16950 UART Low Profile | PEX1S953LP
Sellizo
$68.67
Startech 1-Port Pcie RS232 DB9 Serial Card 16950 UART Low Profile | PEX1S953LP
Sellizo
$63.83
PEX2S952 Startech 2-Port Native PCI Express RS232 Serial Adapter Card
Serversfit
163
$63.83
PEX2S952 Startech 2-Port Native PCI Express RS232 Serial Adapter Card
Serversfit
163
$49.00
Allen-Bradley 1784-PCC Controlnet PCMCIA Interface Card, Ser. B
PLCHardware.com
$49.00
Allen-Bradley 1784-PCC Controlnet PCMCIA Interface Card, Ser. B
PLCHardware.com
$174.52
Startech 4-Port Pcie Serial Card 2X RS232 2X RS422/485 | PEX4S232485
Sellizo
$174.52
Startech 4-Port Pcie Serial Card 2X RS232 2X RS422/485 | PEX4S232485
Sellizo
$142.99
4 Port PCI Express RS232 Serial Adapter Card - 16950 UART - Low Profile - 256-Byte FIFO Cache - PCI E Serial Card - PEX4S953LP
Dell
$142.99
4 Port PCI Express RS232 Serial Adapter Card - 16950 UART - Low Profile - 256-Byte FIFO Cache - PCI E Serial Card - PEX4S953LP
Dell
$115.99
4 Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-Byte FIFO Cache - PCI E Serial Card (PEX4S953LP) - PEX4S953
Dell
5
$115.99
4 Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-Byte FIFO Cache - PCI E Serial Card (PEX4S953LP) - PEX4S953
Dell
5
$259.00
Prosoft Technology MVI56-GSC Generic Serial Communication Module
PLCHardware.com
$259.00
Prosoft Technology MVI56-GSC Generic Serial Communication Module
PLCHardware.com
$181.17
1Pcs For Rs232 Data Communication Card Il-Nt-Rs232-485
eBay
$181.17
1Pcs For Rs232 Data Communication Card Il-Nt-Rs232-485
eBay
$705.00
Sangoma A144EE3811 4 Port PCI Serial Card: EIA530 Interface. (A144EE3811)
TheTelecomSpot.com
$705.00
Sangoma A144EE3811 4 Port PCI Serial Card: EIA530 Interface. (A144EE3811)
TheTelecomSpot.com
$56.99
Startech.Com PCI Express Serial Card 2 Port Dual Channel 16C1050 UART Serial Port Pcie Card Serial Expansion Card - PEX2S1050
Dell
$56.99
Startech.Com PCI Express Serial Card 2 Port Dual Channel 16C1050 UART Serial Port Pcie Card Serial Expansion Card - PEX2S1050
Dell
$71.29
Startech 2-Port Pcie RS232 Serial Adapter 16950 UART - PEX2S953
Sellizo
$71.29
Startech 2-Port Pcie RS232 Serial Adapter 16950 UART - PEX2S953
Sellizo
$97.61
Startech.Com (2S232422485PCCARD) Serial/Parallel Adapters - 2S232422485-PC-CARD
Dell
2
$97.61
Startech.Com (2S232422485PCCARD) Serial/Parallel Adapters - 2S232422485-PC-CARD
Dell
2
$11.98
$18.98
DTECH RS232 To RS485 RS422 Serial Communication Data Converter Adapter Mini-Size
Amazon.com
245
36% off
$11.98
$18.98
DTECH RS232 To RS485 RS422 Serial Communication Data Converter Adapter Mini-Size
Amazon.com
245
$4,529.34
APP-SR4-PCI-C Woodhead / Molex PCI Express Card Serial (4)RS485/RS422 Port 5V
Onlinecomponents.com
$4,529.34
APP-SR4-PCI-C Woodhead / Molex PCI Express Card Serial (4)RS485/RS422 Port 5V
Onlinecomponents.com
$173.12
Startech.Com 4 Port PCI Express Pcie Serial Combo Card 2 X RS232 2 X RS422 /. STARTECH. Port Expansion Cards. 065030849357.
eBay
Free shipping
$173.12
Startech.Com 4 Port PCI Express Pcie Serial Combo Card 2 X RS232 2 X RS422 /. STARTECH. Port Expansion Cards. 065030849357.
eBay
Free shipping
$39.49
Epson C823361 Serial RS-232 Interface Card
WebstaurantStore
$39.49
Epson C823361 Serial RS-232 Interface Card
WebstaurantStore
$133.10
Startech 4-Port Pcie RS232 Serial Adapter 16950 UART Low Profile | PEX4S953LP
Sellizo
$133.10
Startech 4-Port Pcie RS232 Serial Adapter 16950 UART Low Profile | PEX4S953LP
Sellizo
$176.69
$185.99
1 Pc. C104h/Pci V1.3 Multi Serial Port Card Pci 4 Ports Rs-232 & Cable
eBay
$176.69
$185.99
1 Pc. C104h/Pci V1.3 Multi Serial Port Card Pci 4 Ports Rs-232 & Cable
eBay
$108.07
Red Lion Controls PAXCDC2C PAX RS232 CARD/9PIN CONN Mrosupply
MRO Supply MC
Free shipping
$108.07
Red Lion Controls PAXCDC2C PAX RS232 CARD/9PIN CONN Mrosupply
MRO Supply MC
Free shipping
$389.99
Startech 16 Port Pci Express Serial Card, Low-Profile, High-Speed Pcie Seri
CDW
338
$389.99
Startech 16 Port Pci Express Serial Card, Low-Profile, High-Speed Pcie Seri
CDW
338
$34.99
Dell Micro Serial To Serial - Serial Adapter - DB-9 (M) - For Latitude 12 Rugged Tablet 7202 - T4RDW
Dell
$34.99
Dell Micro Serial To Serial - Serial Adapter - DB-9 (M) - For Latitude 12 Rugged Tablet 7202 - T4RDW
Dell
$59.63
Startech 6.6ft USB To DB9 RS232 Serial Adapter FTDI COM Retention | 1P6FFC
Sellizo
$59.63
Startech 6.6ft USB To DB9 RS232 Serial Adapter FTDI COM Retention | 1P6FFC
Sellizo
$1.63
$2.47
USB To RS485 Serial Converter Communication Module CH340 PLC Serial IO Module For Connecting
Aliexpress
34% off
$1.63
$2.47
USB To RS485 Serial Converter Communication Module CH340 PLC Serial IO Module For Connecting
Aliexpress
$727.35
Broadcom P411W-32P Nvme Switch Adapter - Serial Attached SCSI (SAS) - PCI Express 4.0 X16 - Plug-In Card - 4 X X8 SFF-8654 - 4 Total SAS Port(S)
Walmart
Free shipping
$727.35
Broadcom P411W-32P Nvme Switch Adapter - Serial Attached SCSI (SAS) - PCI Express 4.0 X16 - Plug-In Card - 4 X X8 SFF-8654 - 4 Total SAS Port(S)
Walmart
Free shipping
$64.49
Acces PCIE-COM232-8 Low Profile PCI Express Multi-Port Serial Communication Cards - 232 Ports - 3ft Cable
Tech for Less
$64.49
Acces PCIE-COM232-8 Low Profile PCI Express Multi-Port Serial Communication Cards - 232 Ports - 3ft Cable
Tech for Less
$446.85
Startech 8-Port Industrial USB To Rs-232/422/485 Serial Adapter - 15 Kv ESD Protection - USB To Serial Adapter (Icusb234858i)
Walmart
Free shipping
$446.85
Startech 8-Port Industrial USB To Rs-232/422/485 Serial Adapter - 15 Kv ESD Protection - USB To Serial Adapter (Icusb234858i)
Walmart
Free shipping
$91.00
Rs232 To Rs422/Rs485 Optically Isolated Serial Adapter / Converter Cs-428/9At-Iso2
Walmart
Free shipping
$91.00
Rs232 To Rs422/Rs485 Optically Isolated Serial Adapter / Converter Cs-428/9At-Iso2
Walmart
Free shipping
$1.00
WIZ550S2E Serial To Ethernet Module
Saelig Company Inc
$1.00
WIZ550S2E Serial To Ethernet Module
Saelig Company Inc
$77.99
Brainboxes Rs232 1 Port USB To Serial Adapter
Walmart
Free shipping
$77.99
Brainboxes Rs232 1 Port USB To Serial Adapter
Walmart
Free shipping
$200.00
Advantech Corporation PCI-1602C-AE 2 PORT RS232/422/485 PCI ISOLATI
DigiKey
$200.00
Advantech Corporation PCI-1602C-AE 2 PORT RS232/422/485 PCI ISOLATI
DigiKey
$38.99
Usb To Serial Adapter, Com Reserved Function, 4 Rs232 Ports, Compact Design Compact Design, USB To Rs232 Adapter, Windows Compatible Suitable For Note
Walmart
Free shipping
$38.99
Usb To Serial Adapter, Com Reserved Function, 4 Rs232 Ports, Compact Design Compact Design, USB To Rs232 Adapter, Windows Compatible Suitable For Note
Walmart
Free shipping
$4.00
MM232R Tiny FT232RQ-Based USB To Serial Board
Saelig Company Inc
$4.00
MM232R Tiny FT232RQ-Based USB To Serial Board
Saelig Company Inc
What's the Difference Between Parallel and Serial?
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At first, parallel connections might seem like better ways to send data - so why are most modern interfaces like USB serial? Visit https://www.tunnelbear.com/Linus and start your 7-day free trial today! Techquickie Merch Store: https://www.designbyhumans.com/shop/LinusTechTips/ Techquickie Movie Poster: https://shop.crowdmade.com/collections ...
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Shop serial card

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$46.96
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card - Pcie RS232 Serial Host Controller Card - Pcie To Serial DB9 - 16950 UART - Low Profile
Amazon.com
6
Free shipping
$46.96
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card - Pcie RS232 Serial Host Controller Card - Pcie To Serial DB9 - 16950 UART - Low Profile
Amazon.com
6
$21.98
Pcie Combo Serial Parallel Expansion Card PCI Express To Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip For Desktop PC
Amazon.com
80
$21.98
Pcie Combo Serial Parallel Expansion Card PCI Express To Printer LPT Port RS232 Com Port Adapter IEEE 1284 Controller Card WCH382 Chip For Desktop PC
Amazon.com
80
$48.01
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card
DealsZone99
6
Free shipping
$48.01
Startech.Com 1-Port PCI Express RS232 Serial Adapter Card
DealsZone99
6
$72.60
Startech 1-Port Pcie RS-232 Serial Card | 921.6Kbps | 11050-PC-SERIAL-CARD
Sellizo
$72.60
Startech 1-Port Pcie RS-232 Serial Card | 921.6Kbps | 11050-PC-SERIAL-CARD
Sellizo
$68.67
Startech 1-Port Pcie RS232 DB9 Serial Card 16950 UART Low Profile | PEX1S953LP
Sellizo
$68.67
Startech 1-Port Pcie RS232 DB9 Serial Card 16950 UART Low Profile | PEX1S953LP
Sellizo
$63.83
PEX2S952 Startech 2-Port Native PCI Express RS232 Serial Adapter Card
Serversfit
163
$63.83
PEX2S952 Startech 2-Port Native PCI Express RS232 Serial Adapter Card
Serversfit
163
$49.00
Allen-Bradley 1784-PCC Controlnet PCMCIA Interface Card, Ser. B
PLCHardware.com
$49.00
Allen-Bradley 1784-PCC Controlnet PCMCIA Interface Card, Ser. B
PLCHardware.com
$174.52
Startech 4-Port Pcie Serial Card 2X RS232 2X RS422/485 | PEX4S232485
Sellizo
$174.52
Startech 4-Port Pcie Serial Card 2X RS232 2X RS422/485 | PEX4S232485
Sellizo
$142.99
4 Port PCI Express RS232 Serial Adapter Card - 16950 UART - Low Profile - 256-Byte FIFO Cache - PCI E Serial Card - PEX4S953LP
Dell
$142.99
4 Port PCI Express RS232 Serial Adapter Card - 16950 UART - Low Profile - 256-Byte FIFO Cache - PCI E Serial Card - PEX4S953LP
Dell
$115.99
4 Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-Byte FIFO Cache - PCI E Serial Card (PEX4S953LP) - PEX4S953
Dell
5
$115.99
4 Port PCI Express RS232 Serial Adapter Card - 16950 UART - 256-Byte FIFO Cache - PCI E Serial Card (PEX4S953LP) - PEX4S953
Dell
5
$259.00
Prosoft Technology MVI56-GSC Generic Serial Communication Module
PLCHardware.com
$259.00
Prosoft Technology MVI56-GSC Generic Serial Communication Module
PLCHardware.com
$181.17
1Pcs For Rs232 Data Communication Card Il-Nt-Rs232-485
eBay
$181.17
1Pcs For Rs232 Data Communication Card Il-Nt-Rs232-485
eBay
$705.00
Sangoma A144EE3811 4 Port PCI Serial Card: EIA530 Interface. (A144EE3811)
TheTelecomSpot.com
$705.00
Sangoma A144EE3811 4 Port PCI Serial Card: EIA530 Interface. (A144EE3811)
TheTelecomSpot.com
$56.99
Startech.Com PCI Express Serial Card 2 Port Dual Channel 16C1050 UART Serial Port Pcie Card Serial Expansion Card - PEX2S1050
Dell
$56.99
Startech.Com PCI Express Serial Card 2 Port Dual Channel 16C1050 UART Serial Port Pcie Card Serial Expansion Card - PEX2S1050
Dell
$71.29
Startech 2-Port Pcie RS232 Serial Adapter 16950 UART - PEX2S953
Sellizo
$71.29
Startech 2-Port Pcie RS232 Serial Adapter 16950 UART - PEX2S953
Sellizo
$97.61
Startech.Com (2S232422485PCCARD) Serial/Parallel Adapters - 2S232422485-PC-CARD
Dell
2
$97.61
Startech.Com (2S232422485PCCARD) Serial/Parallel Adapters - 2S232422485-PC-CARD
Dell
2
$11.98
$18.98
DTECH RS232 To RS485 RS422 Serial Communication Data Converter Adapter Mini-Size
Amazon.com
245
36% off
$11.98
$18.98
DTECH RS232 To RS485 RS422 Serial Communication Data Converter Adapter Mini-Size
Amazon.com
245
$4,529.34
APP-SR4-PCI-C Woodhead / Molex PCI Express Card Serial (4)RS485/RS422 Port 5V
Onlinecomponents.com
$4,529.34
APP-SR4-PCI-C Woodhead / Molex PCI Express Card Serial (4)RS485/RS422 Port 5V
Onlinecomponents.com