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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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Socket Comm D-I/O Ruggedized Dual Serial Port PC Card PCMCIA
- Model #: TOLDB00006B6QG
- $290.99 –
- Free Shipping
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HF2211 Serial Port Server RS232/485/422 to Ethernet Converter, Serial Communication DTU Device
- Model #: RCCWB0CPWSNVNV
- $88.99 –
- Free Shipping
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MOXA NPort 5230A 2 Port Device Server, 10/100M Ethernet, RS-422/485, Terminal Block, 15KV ESD, 0.5KV Serial Surge, 12~48VDC, 0~60C
- Model #: RCCWB07C6694DM
- $546.99 –
- 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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IO CREST 8 Port Serial DB9 RS-232 PCI Controller Card RDC C6238 Chipset SI-PCI15068
Limited time offer, ends 10/07
- Model #: C7FK-OYS-2026.7.28-553
- $75.99 –
- 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 10/07
- Model #: C7FK-OYS-2026.7.28-67
- $74.99 –
- Free Shipping
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Vszerda Dual Port PCI Express RS-232 DB9 Serial Port Card for Windows XP, Vista,7, 8.x, 10, 11 32/64bit and Linux PCs, PCIE 2X DB9 Card
Limited time offer, ends 10/15
- Model #: C745-Lsy715-1888
- $31.99 –
- 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 10/07
- Model #: C7FK-OYS-2026.7.28-573
- $74.99 –
- Free Shipping
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Conceptronic 4 Port DB9-RS232 Serial PCIe Card
- Model #: TOLDB0D96KXT8D
- $194.99 –
- 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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8 Port Serial RS232/422/485 PCIe Module Isolation and Surge Protection
- Model #: TOLDB01NCJY2GH
- $671.99 –
- Free Shipping
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RS232 Serial Port Interface Card Compatible with TM-U210 M188B TM-L90 TM-U325 TM-T88V M129C TM-U220PD TM-U220PA TM-U288B M111A Printers and Devices
- Model #: TOLDB0FFSBHVS9
- $84.99 –
- Free Shipping
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PCIe to 8 Port RS232 Serial Card PCIe to 8 Ports Serial RS232 Expansion Card Riser Card COM Controller 17V358
- Model #: TOLDB0DD3ZDGTX
- $116.99 –
- Free Shipping
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Syba SY-PEX15019 PCI-Express RS-232 Serial 8-Port Card with OXPCIe958 Chipset
- Model #: TOLDB003BYRO8S
- $109.99 –
- Free Shipping
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Vszerda 2 Port Serial DB9 RS232 PCI-e 1.0 x1 with Low Bracket SI-PEX15055
Limited time offer, ends 10/15
- Model #: C745-Lsy715-1228
- $47.99 –
- 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 10/15
- Model #: WLC78S.0807.Pallet0692
- $34.86 –
- More options from $34.26
- Free Shipping
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IO CREST 2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SY-PEX15066
- Model #: TOLDB07Y92R526
- $75.99 –
- Free Shipping
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PCIe to 2x DB9 RS232 COM Serial Port+ 1x DB25 Parallel Port Printer LPT Adapter Card Chipset ASIX/AX9900 for Desktop Computer
- Model #: DW-TXB070
- $19.99 –
- Free Shipping
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8 Serial Port DB9 RS232 PCIe Riser Card PCI-Express X1 Expansion Card Adapter High Speed 920KB with Heat Sink Chip ASIX AX9900
- Model #: C75J*OYJ*G1*0717-136
- $63.96 –
- Free Shipping
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RS232 Serial Port Interface Card with Printer Supplies TM-U210 M188B TM-L90 TM-U325 TM-T88V M129C TM-U220PD
- Model #: TOLDB0G2KSNG1G
- $88.99 –
- Free Shipping
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2 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SY-PEX15066
- Model #: TOLDB0FMLD3RJL
- $83.99 –
- Free Shipping
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Syba 2 Port Serial DB9 RS232 PCI-e 1.0 x1 with Low Bracket SI-PEX15055
- Model #: TOLDB01LY3YUI9
- $82.99 –
- Free Shipping
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8 Port RS-232 DB9 Serial PCI-e 2.0 x1 Card XR17V358 Chipset 16C550 UART SI-PEX15041
- Model #: TOLDB00M1BQLO0
- $118.99 –
- Free Shipping
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IO CREST 8 Port RS-232 DB9 Serial M.2 B+M Key Controller Card SI-ADA15071
- Model #: TOLDB0CLFLBYHY
- $108.99 –
- 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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Vszerda 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 10/14
- Model #: 98G4D9R
- $188.99 –
- 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
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IO CREST 4 Port RS-232 Serial PCIe 2.0 X1 Controller Card Components SI-PEX15042
- Model #: TOLDB00Q1EUDE2
- $103.99 –
- Free Shipping
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PCI-E 1x Single Port DB9 RS232 PCIe to Serial Port Expansion Card Adapter Converter Chipset ASIX AX9900 for Desktop PC Computer
- Model #: DW-TXB067
- $17.49 –
- Free Shipping
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212 Main 16 Port Low-Profile Serial Card - High - Speed PCIe Serial Adapter
- Model #: TOLDB0D9P8K8WR
- $737.99 –
- Free Shipping
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PCIe 1X to 8 Serial Port DB9 RS232 Expansion Card Adapter Chip ASIX AX9900 for PC, Touch Screen, Scanner, Printer, Modem, Reader
- Model #: DW-TXB107
- $67.73 –
- Free Shipping