Class 1-C PCBs

Class 1-C PCBs are colourful motherboards without attachments from computers (yellow, blue, orange, purple, also green PC motherboards, graphics cards / sound cards manufactured from 2020 onwards / starting from Pentium4 / AMD Athlon PC generation). They also include Class 1-A and 1-B PCBs from which ferrous and aluminium attachments such as metal sheets and heat sinks have not been removed, or from which components containing precious metals such as chips have been removed.