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Connect your PC system to serial devices with our selection of PCI, Universal PCI, ISA, PCMCIA, and USB serial cards. Boards are available with DB-25, DB-9, RJ-12, or USB connectors and up to 16 ports. Our multi-mode boards can toggle between RS-232, 422, 485, or EIA-530. Select one of our FireWire, USB, or Ethernet interface cards or choose a module that provides serial ports from USB or Ethernet. (Choose "More Criteria" for USB, FireWire, LAN/Ethernet, parallel, GPIB, or Bluetooth ports.)  
  220 of 220 products meet your criteria. Show more options
Bus
RS-232 Ports
RS-422 Ports
RS-485 Ports
EIA-530 Ports
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 220 of 220 products meet your criteria. Show more options

CompareDeselectAdd to Cart  (Click Title To Sort) [1] 2 3 4 5 6 7 8 9 10 Next >>
    Description  BusPortsData RateShipping  Price   
ISA-Bus 4-Port RS-422/485 Serial Communications Card, 115.2 kbps Data Rate, 16-Byte FIFO Buffer COMH 131 This item is on sale
ISA 4-Port RS-422/485 Serial Interface Card, 115.2 kbps Data Rate, 16-Byte FIFO Buffer, with 4 DB-9M Connectors
ISA (16-bit, AT)
4 Same Day  $269.00 Add to Cart
USB to 2-Port RS-232 Module, Front View USBS 1202 This item is on sale
USB 2-Port RS-232 Serial Interface Module, 460.8 kbps Data Rate, 16-Byte FIFO Buffer
USB
2 Same Day  $149.00 Add to Cart
USB to 2-Port RS-422/485 Module, Front View USBS 1402 This item is on sale
USB 2-Port RS-422/485 Serial Interface Module, 230.4 kbps Data Rate, 16-Byte FIFO Buffer
USB
2 Same Day  $179.00 Add to Cart
USB to 8-Port RS-422/485 Module, Front View USBS 1408 This item is on sale
USB 8-Port RS-422/485 Serial Interface Module, 230.4 kbps Data Rate, 16-Byte FIFO Buffer
USB
8 Same Day  $389.00 Add to Cart
4-Port PCMCIA/RS-422/485 Converter Card COMR 4422C
PCMCIA 4-Port RS-422/485 Converter Type II PC Card, 115.2 kbps Data Rate, 16-Byte FIFO Buffer, with 4 DB-9M Connectors on Included Cable
PCMCIA PC Card
4 Same Day  $375.00 Add to Cart
2-Port PCI RS-422/485 Interface Card with DB-9M Connectors CYBM 2422UI
PCI 2-Port RS-422/485 Serial Interface Card, 921.6 kbps Data Rate, 128-Byte FIFO Buffer, with 2 DB-9M Connectors and Isolation
PCI (32-bit,
universal keyed)
2 Same Day  $445.00 Add to Cart
Ethernet to Serial Interface Module with 3 RS-232 and 1 RS-485 Ports CM 7188E4
CyMOD Ethernet to 3-Port RS-232 and 1-Port RS-485 Interface Module - 512KB FIFO Buffer, with 23 Screw Terminals
Ethernet
4 Same Day  $345.00 Add to Cart
Ethernet to Serial Interface Module with 3 RS-232 and 1 RS-485 Ports, and LED Display CM 7188E4D
CyMOD Ethernet to 3-Port RS-232 and 1-Port RS-485 Interface Module - 512KB FIFO Buffer, with 23 Screw Terminals and LED Display
Ethernet
4 Same Day  $385.00 Add to Cart
Ethernet Interface Module with 7 RS-232 and 1 RS-485 Ports CM 7188E8
CyMOD Ethernet to 7-Port RS-232 and 1-Port RS-485 Interface Module - 512KB FIFO Buffer, with 23 Screw Terminals
Ethernet
8 Same Day  $475.00 Add to Cart
PCI 2-Port RS-232 Serial Interface Card with DB-9M Connectors (1-port model shown) CYA 2550U
PCI 2-Port RS-232 Serial Interface Card, 115.2 kbps Data Rate, 16-Byte FIFO Buffer, DB-9M Connectors
PCI (32-bit,
universal 3.3V & 5V
keyed)
2 Same Day  $89.00 Add to Cart
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