RS-232 controllers  (329 offers of 5,352,800 product items)

Universal Low Profile card provides 1 industry standard 9 pin RS232 serial COM port in a single PCI slot. An additional serial COM port is available on the flying lead header using the included mal...

Add 2 high-speed RS-232 serial ports to your low profile/small form factor computer with a PCI Express expansion slotThe PEX2S553LP low profile/half-height PCI Express Serial Card turns a PCI Expre...

Add 4 RS-232 serial ports to your standard or small form factor computer through a PCI Express expansion slot The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets y...

Serial cards engineered to exceed expectations Universal PCI card provides 4 industry standard RS232 serial COM ports in a single PCI slot, 9 pin or 25 pin cable options. Universal PCI is fully com...

Add 4 RS232 serial ports to any PC using a single PCI Express expansion slot The PEX4S553B 4-Port PCI Express Serial Card (with breakout cable) lets you add 4 RS232 serial ports using a single PCIe...

PCI Express card provides 1 industry low profile 9 pin RS232 serial COM port, fits in any PCI Express slot e.g., x1, x4, x8 or x16 lanes. Available as a Standard Height card. - Fits on x1, x4, x8 o...

Add a RS-232 serial port to your standard or small form factor computer through a PCI Express expansion slotThe PEX1S553LP PCI Express Serial Card turns a PCI Express slot into an RS232 (DB9) seria...

PCI Express Card providing one RS232 serial port and one LPT. Up to 921,600 data transfer rates and the 256 byte deep transmit and 256 byte receive FIFOS, coupled with 1Mbit/s line drivers deliver ...

PCI Express Card providing four RS232 serial ports. Data transfer rates up to 921,600 baud rates and the 128 byte deep transmit and 128 byte receive FIFOS, coupled with 1Mbit/s line drivers deliver...

4xRS232 PCI Serial Port Card (3x9 pin ports + 1x9 pin port) with LPT Parallel Port for Printer Universal PCI providing four RS232 serial ports and one LPT port (3 industry standard 9 pin D RS232 po...

Universal PCI card provides 1 industry standard 9 pin RS232 serial COM ports in a single PCI slot. Universal PCI card provides 1 industry standard 9 pin RS232 serial COM ports in a single PCI slot.

Add 2 high-speed RS-232 serial ports to your PC through a PCI expansion slot The PCI2S550 2 Port 16550 Serial Card can be installed in an available PCI slot to add two RS232 serial ports to your sy...

Universal PCI card provides 3 industry standard 9 Pin RS232 serial COM ports in a single PCI slot. No additional external cabling neccessary because all three 9-pin ports are built into card; strea...

Universal PCI card provides 4 industry standard RS232 serial COM ports in a single PCI slot, 9 pin or 25 pin cable options. Low Profile is the industry standard small form factor design for PCI. Un...

Universal PCI card provides 8 industry standard RS232 serial COM ports in a single PCI slot, 25 pin. Universal PCI is fully compatible with both 3.3Volt and 5Volt PCI slots; protecting your investm...