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Amazon.com: YWBL-WH 2 PCS HL-340 USB to RS232 COM Port Serial PDA 9 pin DB9 Cable Adapter : Electronics
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Amazon.com: Aihjcnele 2pcs HL-340 USB to RS232 DB9 Serial Male Converter Adapter Cable 9 Pin USB 2.0 to 232 COM Port RS-232 80cm FTDI Connector Supports Windows 10 8 7 XP for Arduino 51 MCU (HL340) : Electronics
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Amazon.com: YWBL-WH 2 PCS HL-340 USB to RS232 COM Port Serial PDA 9 pin DB9 Cable Adapter : Electronics
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