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USB-TTL Serial CH340 Board



Availability: In stock

Quick overview


  • Three status LED, pwr, tx and rx
  • TTL level selectable: 3v3 or 5V.
  • Support up to windows 8
  • Documentation on this page.
  • Note: Only 5V can be used to power external target device, 3V3 only used for TTL.
  • Buck order price $0.8 for more than 50pcs order, price will automatically updated in the cart page.


  • Compatible with 32-bit & 64-bit Windows, Mac OS 8 to OS X, Linux and Android!
  • To test the unit use the shunt to connect TX and RX (loopback test)
  • 3.3V and 5.0V outputs are available to power your project directly from the adapter.

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