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4-Port RS-232 Serial PCI-E (w/Both Regular & LP Brackets) (SER6456A+L)
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  • $216.99 
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M.2 to 4-Port RS-232 Serial Card
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M.2 to 4-Port RS-232 Serial Card
  • Model #: TOLDB0DYDLRS31
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  • $101.99 
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4-port RS-232 PCI Express Serial Low Profile Board with Power Output (SATA Power Socket)
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  • $148.99 
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IO CREST 4 Port RS-232 Serial PCIe 2.0 X1 Controller Card Components SI-PEX15042
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  • $103.99 
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MOXA CP-104EL-A-DB9M 4 Port PCIe Board, w/ DB9M Cable, RS-232, Low Profile
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  • $628.99 
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4 Port RS-232 Serial PCIe 2.0 X1 Controller Card Components SI-PEX15042
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  • $83.99 
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LINDY 4 Port Serial RS-232, 16C650 128 Byte FIFO PCIe Card (51189)
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  • $149.99 
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UT-754P 4-Port Industrial RS-232 PCI Multi-Serial Port Card 3.3V and 5V PCI BUS
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  • $97.28 
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MOXA CP-134U V2 4-port RS-422/485 PCI multi-serial card
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  • $66.00 
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UOTEK Industrial PCIE to 4-Port RS485 RS422 Serial Card PCI-E to RS-485 RS-422 High Speed Converter Adapter DR44 Connector Optical Isolation 1.2Km Transmission Distance 4U UT-794I
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  • $108.79 
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Direct from UOTEK Direct from UOTEK
UOTEK PCI to 4 Ports RS232 High Speed Serial Card RS-232 Multiport Serial Adapter DR44 Expansion Connector Industrial Grade Converter UT-754
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  • $59.16 
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Direct from UOTEK Direct from UOTEK
UOTEK Industrial Mini PCI-E to RS-232 Serial Card PCIE to RS232 4 Port High Speed Converter DB9 ESD Anti-lightning  RTS/CTS XON/XOFF UT-7784B Support Win2000/XP/Vista/Win7/NT4.0/CE 4.2/5.0/6.0/Vxworks
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  • $46.90 
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Delock PCI Express Card 4 x Serial Silver
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  • $316.99 
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Rocketport Infinity Quad Pcix Upci 4PORT DB25M RS-232/422/485
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  • $582.99 
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UOTEK Industrial PCI-E to 8-port RS-232 Serial Card PCIE to RS232 High Speed DR62 Converter Com DB9 Connector 4U UT-788 Support 256byte FIFO Driver and Built-in Hardware and Software
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  • $116.36 
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USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 11 10 8 7 XP Mac -10 Feet
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  • $54.99 
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Syba 2 Port DB9 RS-422/485 Serial PCI-Express 2.0 x1 Card (SI-PEX15043)
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  • $99.99 
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PCMCIA Single Port RS-422/485 Card with Isolation and Port Protection
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  • $165.99 
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LINDY 8 Port Serial RS-232, 16C950 128 Byte FIFO PCI Card Std Profile (51275)
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  • $723.99 
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Moxa | Protocol Gateways, 1-Port, Modbus Gateway, MGate MB3180/MB3280/MB3480 Series
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  • $324.99 
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