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The USB to 1 port RS-422 converter is housed in a strong enclosure designed for rugged areas. Detected as a standard Windows COM port, it can be configured to work with any RS-422 compatible device such as POS systems and Industrial Control devices. Fully compliant with USB Plug & Play protocols the USBG-RS422-DB9 adapter allows easy serial port expansion and requires no IRQ, DMA, or I/O port resources or configuration. Supports data transfer rates of up to 3Mbps and requires no external power source as all required power is provided by the host USB computer.