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原装正品现货 CH340 CH340G USB转换芯片 N E C X K B S
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STM32/ESP32/ESP8266串口烧录器
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CH224K CH334U CH340B/C/E/G/K/N/T/X CH341A/T CH342F CH343G/P
CH340C 340N 442E 224 443K 343P 340B 340T 340X 455 343 552G
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CH224 343 342 440X 412 443 442 554 340N 450H 552E 9141K 315G
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原装正品CH340B/340C/340G/340N/340K/340E/340X/340TUSB转换芯片
