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PCIE 1x to 4-Port RS232 Serial Port Card Adapter 2-Port 4-Port Expansion Card Desktop Purpose COM Card(2 Port)
- Model #: TOLDB0F44FVP2K
- $89.99 –
- Free Shipping
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PCIE 1x to 4-port 2-port RS232 serial card, 2-port 4-port expansion card, desktop computer universal COM card
Limited time offer, ends 08/30
- Model #: C738-WXY-80500033
- $38.89 –
- Free Shipping
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Ethernet Network Serial Port Converter RJ45 to RS232 RS485 RS422 Industrial Device Server Support TCP/RTU/UDP with Power Cable
Limited time offer, ends 08/30
- Model #: DW-TXI038
- $45.99 –
- Free Shipping
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PCI-E 1 Parallel port 2 Serial card pcie to COM9 pin RS232 industrial control serial port expansion card AX99100 chip
Limited time offer, ends 08/30
- Model #: C6WV-0730-OYJ-577
- $28.61 –
- Free Shipping
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MM-PCI16C1058-8S PCI to 8-Port RS232 Serial Adapter Card 926.1Kbps Desktop COM Port with 1 to 8 DB9 Serial Cable Support PCIIRQ Sharing
- Model #: TOLDB0FHKZ9JCZ
- $100.99 –
- Free Shipping
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PCIe to 8-Port RS-485/422 Serial Port Card, 8-Channel COM Expansion Card with TVS, Lightning/Surge Protection & Terminal Blocks - Industrial Multi-Port Data Communication
Limited time offer, ends 08/29
- Model #: C7FK-OYS-2026.7.28-837
- $127.99 –
- Free Shipping
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PCIE RS232 Expansion Card PCIe Serial Host Controller Card with 2 Port PCI Express RS232 DB9 Serial Port, ASIX AX99100 Chip, Support for Windows
Limited time offer, ends 08/31
- Model #: LHXC6W1JU09-6
- $39.59 –
- Free Shipping
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Socket Comm D-I/O Ruggedized Dual Serial Port PC Card PCMCIA
- Model #: TOLDB00006B6QG
- $290.99 –
- Free Shipping
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IO CREST 8 Port Serial DB9 RS-232 PCI Controller Card RDC C6238 Chipset SI-PCI15068
- Model #: TOLDB08FSDGK57
- $72.99 –
- Free Shipping
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4-Port RS-232 Serial PCI-E (w/Both Regular & LP Brackets) (SER6456A+L)
- Model #: TOLDB00IIZ2ZMU
- $216.99 –
- Free Shipping
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2-Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, PCIE RS232 Card, PCIE Serial DB9 Port Card (PCIE-SE2)
- Brand: HP
- Part Number: PCIE-SE2
- Connectors: 1 x RJ45
- Interface: PCI
- Model #: 141931474414
- $53.99 –
- Free Shipping
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IO CREST 6 Port RS-232 DB9 Serial PCI-Express 2.0 x1 Card SI-PEX15040
Limited time offer, ends 08/29
- Model #: C7FK-OYS-2026.7.28-744
- $97.99 –
- Free Shipping
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PCIE-E to RS-232 serial port expansion card COM port desktop computer host adapter card 9-pin DB9 industrial control
Limited time offer, ends 08/31
- Model #: C73X-L616-41
- $59.30 –
- More options from $59.30 - $61.30
- Free Shipping
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IO CREST 6 Port RS-232 DB9 Serial PCI-Express 2.0 x1 Card SI-PEX15040
Limited time offer, ends 08/29
- Model #: C7FK-OYS-2026.7.28-552
- $97.99 –
- Free Shipping
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- $18.47 –
- Free Shipping
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PCIe to 4-Port RS-485/422 Serial Card with Opto-Isolation, Surge/Lightning Protection & Terminal Block - Industrial-Grade Multi-Port Expansion Card for COM Port, Automation, Communication
Limited time offer, ends 08/29
- Model #: C7FK-OYS-2026.7.28-573
- $74.99 –
- Free Shipping
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IO CREST 8 Port Serial DB9 RS-232 PCI Controller Card RDC C6238 Chipset SI-PCI15068
Limited time offer, ends 08/29
- Model #: C7FK-OYS-2026.7.28-553
- $75.99 –
- Free Shipping
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WRIARICH PCI-E 1X 2-Port Serial Expansion Card AX99100 Chip, Dual DB9 Male COM Ports Support RS232 RS485 RS422 with 12CM Standard Bracket
- Model #: VDSG498SG2
- $39.99 –
- Free Shipping
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WRIARICH PCI-E 1X to 2-Port RS232 DB9 Male Serial Expansion Card AX99100 Chip Supports RS232/RS485/RS422 with 12CM Bracket
- Model #: SF498SA380
- $39.99 –
- Free Shipping
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PCIe Serial and Parallel Port Card Desktop PCI-E 1 and 2 Serial Port Card Built-in 2S1P COM Serial Parallel Port Card
Limited time offer, ends 08/31
- Model #: WLC78S.0807.Pallet0692
- $35.06 –
- Free Shipping
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JAENFONG Ethernet Network Serial Port Converter RJ45 to RS232 RS485 RS422 Industrial Device Server Support TCP/RTU/UDP with Power Cable
- Model #: ZZ-942
- $49.97 –
- Free Shipping
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PCIe to Dual RS-485/422 Serial Port Card with DB9 Connectors - High-Speed 1-to-2 Multi-Port Expansion Card, Terminal Block Adapters
- Model #: TOLDB0F9FMG1PZ
- $75.99 –
- Free Shipping
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JAENFONG Ethernet RJ45 to RS232 DB9 Serial Port Device Server Converter Industrial Ethernet LAN Adapter Support TCP/RTU/UDP Modes
- Model #: ZZ-959
- $30.31 –
- Free Shipping
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8 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SI-ADA15071
- Model #: TOLDB0FMLH12XL
- $108.99 –
- Free Shipping
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PCIe to 4-Port RS-485/422 Serial Card, High-Speed 9-Pin DB9 COM Port Expansion with Surge/Lightning Protection, Voltage Suppression Terminal Blocks
Limited time offer, ends 08/31
- Model #: C731-45-LJU01
- $85.13 –
- Free Shipping
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PCIe to 2 Serial Port RS232 DB9 PCI-E PCI Express 1x Adapter Riser Card Support RS232, RS485 & RS422 Modes Chipset ASIX/AX9900
Limited time offer, ends 08/29
- Model #: DW-TXB068
- $17.40 –
- More options from $17.40 - $18.45
- Free Shipping
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Inline PCIe Serial Card, 4 Port RS-232 Interface, D-Sub 9, CH384L, Low Profile Brackets, UART Interface, High Data Rate, 76619E
- Model #: TOLDB0GLG76G29
- $72.99 –
- Free Shipping
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AEE7-PCI-E to Dual Serial Port RS232 PCI PICie Adapter Card 2.5Gb/s Channel 1000Kbps CH382L Chip
- Model #: TOLDB0GPQBNQP1
- $99.99 –
- Free Shipping
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PCI to 8x Serial Port RS232 DB9 COM Expansion Card I/O Controller Riser Adapter Chipset Systembase 16C1058 with Output Cable
- Model #: DW-TXB062
- $69.33 –
- Free Shipping