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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.)  
  224 of 224 products meet your criteria. Show more options
Bus
RS-232 Ports
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 224 of 224 products meet your criteria. Show more options

CompareDeselectAdd to Cart  (Click Title To Sort) Prev 1 [2] 3 4 5 6 7 8 9 10 Next >>
    Description  BusPortsData RateShipping  Price   
Go From a USB to an RS-232 Connector USBS 2201
USB 1-Port RS-232 Serial Interface Module, 460.8 kbps Data Rate, 128-Byte (TX)/384-Byte (RX) FIFO Buffer
USB
1 Call  $89.00 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
PCI RS-232 Serial Interface Card with SB-9M and DB-25F Connectors CYA 1550UP
PCI 1-Port RS-232 Serial Interface Card, 115.2 kbps Data Rate, 16-Byte FIFO Buffer, with and LPT Parallel Printer Port, DB-9M and DB-25F Connectors
PCI (32-bit,
universal 3.3V & 5V
keyed)
1 Same Day  $89.00 Add to Cart
PCI SATA RAID Controller Card - 2 Serial ATA Ports MSA 3012P
PCI SATA RAID Controller Card - 2 Serial ATA Ports
PCI (32-bit, 5V
keyed)
-  1-2 weeks  $95.00 Add to Cart
PCIe Gigabit Ethernet NIC Network Interface Card NET GBEA
PCIe Gigabit Ethernet NIC Network Interface Card
PCI Express x1
-  Same Day  $95.00 Add to Cart
PCI 3-Port FireWire Expansion Card, 400 Mpbs Data Rate, with 3 FireWire (IEEE-1394) Connectors COF 103P
PCI 3-Port FireWire Expansion Card, 400 Mpbs Data Rate, with 3 FireWire (IEEE-1394) Connectors
PCI (32-bit, 5V
keyed)
3 2+ weeks  $95.00 Add to Cart
ISA 2-Port RS-232 Serial Interface Card, 460.8 kbps Data Rate, 16-Byte FIFO Buffer, with 2 DB-9M Connectors BLS 2322S
ISA 2-Port RS-232 Serial Interface Card, 460.8 kbps Data Rate, 16-Byte FIFO Buffer, with 2 DB-9M Connectors
ISA (16-bit, AT)
2 Call  $99.00 Add to Cart
PCI 2-Port RS-232 Interface Card BPS 2322S 
PCI 2-Port RS-232 Serial Interface Card, 920 kbps Data Rate, 16-Byte FIFO Buffer, with 2 DB-9M Connectors
PCI (32-bit, 5V
keyed)
2 Call  $99.00 Add to Cart
ISA 1-Port RS-422/485 Serial Interface Card, 460.8 kbps Data Rate, 16-Byte FIFO Buffer, with DB-9M Connector BLS 4221S
ISA 1-Port RS-422/485 Serial Interface Card, 460.8 kbps Data Rate, 16-Byte FIFO Buffer, with DB-9M Connector
ISA (16-bit, AT)
1 1-2 weeks  $99.00 Add to Cart
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
 $99.00
Add to Cart
 Showing 11 - 20 of 224 Products Prev 1 [2] 3 4 5 6 7 8 9 10 Next >>
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