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The EX-44342 PCI-Express I/O-adapter provides two high performance 16C550-type UART compatible RS-232 serial ports. It is designed for PC, thin client or server to provide instant COM port expansion via the PCI-Express Bus (PCI-e). The card is fully PCI-Express Plug-and-Play compatible and there are no IRQ and I/O address configuration problems. It provides +5V and +12V via the pin 9 from the male connector for a POS System (Power over System). With the EX-44372 we include a Low Profile bracket for small computer case up to 8cm high.