@dan Similar question: I was wondering if this worked for the M1 14" 2021 laptops? I was concerned about the storage and stuff on the logic board itself and if the ultrasonic bath could ruin those? Also, do you know the dimensions of the logic board (part number 661-21276) itself and if 6L with a basket would an appropriate bath size? What temperature did you use in your bath? I assume the 40 is in regards to khz or was it celsius in the [guide|88916|how to article|new_window=true]? Any suggestions on bath brand/model and detergent in the US are also welcome! Thanks.