hello, this is hotend cable connect from hotend to V4.1B version control board .
pls check which version control board does your printer has , it was written on the board itself, you can check control board underbasement directly. or you can also check the extension board type behind hotend.
if your A20 has V4.0 board , you can order this link cable , but write a comment for your order, need A20 hotend cable for V4.0 board instead
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