CH340 Windows 8 / 8.1 x64 x86 driver download

CH340 Windows 8 driver download

Download latest version of verified & working Windows 8.1 x64 & x86 driver for CH340, CH340G USB to Serial converter.

CH340 driver for Windows 8.1 x64 & x86

Driver details

CH340, CH340G & CH341 (USB-SERIAL chip) V3.4
Driver Version = 08/08/2014, 3.4.2014.08
CH340 Windows 8 driver details

CH340 Windows 8 driver installation

Open Device Manager - right mouse click on USB2.0-Serial, then left click Update Driver Software...

Open Device Manager – right mouse click USB2.0-Serial, then left click Update Driver Software…

CH340 Windows 8 driver installation step 2

open the directory with downloaded & extracted driver

open the directory with downloaded & extracted driver


Finished, Close

CH340 driver installed and working

CH340 driver installed and working

CH340G converter connection and pinout for programming

CH340G converter connection & pinout for programming Arduino Pro Mini

CH340G connection to programming Arduino Pro Mini

  1. thanks alotttt!!!! It worked!!!!

  2. It works great. Thank a lot………..

  3. Super! Thank you!

  4. It works great. Thank a lot……

  5. Finaly! :)

    Thank a lot! Btw i fix my Win 7/ 64 bit drivers…

  6. Wow you save my life men!!! thanks!!!!! greetings from ecuador!!!

  7. Awesome…!!!! You are the man…Thanks a lot dude.. :D

  8. now my uno ch430 board communicating well with pc,Thanks lot…………

  9. Nice work Boss!!

  10. It doesn’t work with Windows 10 , some solution?

  11. didn’t work for me… :/

  12. Thank you. Finally a working driver :)

  13. Well I can’t get this working on Windows 10 either…anyone have a work around for this?

  14. Works also very good for W10 !!!

  15. Funciona bien con este driver. Hay que instalarlo como dice el instructivo. Muchas gracias…!!!

  16. Doesn’t work with Windows 10, any solution?

  17. Thanks! Works with Windows 10 as well. In fact my copy of Windows 10 already had the older driver.

  18. Jacques Arongaus December 15, 2015 at 3:08 am

    Your driver was fully and successfully installed by win 10 finally. I just purchased a FeelTech Function Generator that uses this driver to interface with the Generator’s set-up software. No matter what, the software does not recognize the USB port for the communication.
    The software is called FY2300. Any ideas ???

    Many thanks.


  19. it worked for me with my windows 8 pc


  20. Thanks for the tutorials. Can you tell which laptop model you are using on the picture.

  21. You legend! This worked a treat!

  22. Hello, it doesn’t work for me, but I don’t get an USB 2.0 serial in the device manager but Unknown USB Device (Device Descriptor Request failed). I installed the driver but it didn’t help and I can’t change it manually because my windows tells me it is not a valid driver.

    • Hi, when you get Device Descriptor Request failed you need to restart your computer. Then unplug everything and reconnect. If it still doesn’t work, there may be a power issue – try to use shorter USB cable or connect to other USB port.

      • Tenía el mismo problema, la solución fue ocupar un cable largo, ¡no mas corto! si es posible que tenga una bobina de ferrita en un extremo, así reconoce sin problemas en windows 10 64bits.

        basicamente el problema es debido al ruido, con un cable largo se tiene un efecto capacitivo entre los cables y el ruido desaparece y reconoce directamente el puerto COM. previamente había instalado el driver con el instalador ch431ser.exe

    • prueba un cable mas largo, yo tenia el mismo problema :)

  23. bro its working well thanks a lot

  24. Clyde Crashkop March 29, 2016 at 5:08 pm

    Thanks a lot. This one works for Windows 7

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