Valve Steam Deck Gen 2 Main Board Motherboard - Genuine Valve Spares UK
 
PLEASE NOTE - this is from the Gen 2 or second revision Steam Deck which IS different from the original Steam Deck so you will need to ensure that the model numbers are the same as the one that you are replacing and they are physically different.
 
This is the exact board in the photos that you will receive and the model numbers on the board are as follows:
 
Model: F7AA DAF7AAMBAC0 Rev:C

This is a used main board with very little usage and in perfect working order - pulled from a brand new Steam Deck harvested for repair parts, tested and cleaned and ready to fit.