Description
Add two or four COM ports to your USB PC LEDs on transmit and receive lines USB 1.0, 1.1, and 2.0 compatible (12 Mbps). Automatic configuration on Windows 98, ME, 2000, XP, Vista and 7,8,and 10 No power supply required (powered from USB bus). P models can be bus powered or externally powered. Recommended external power supplies.
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