4 pcs PL2303 PL2303HX USB to TTL Serial Converter 3.3V Debug Cable RS232 TTL Serial Adapter Converter 4 Pin Female Socket for Arduino. 4 x PL2303 USB to TTL Serial cable(1M). Powerful function :Designed to be used for USB to TTL electronic projects, easy to connects devices with 3.3 V logic level UART signals interface to a laptop via USB port.
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