Sample roasters, accessories, spare parts, and more › PCB Motherboard Image 1 of 1 PCB Motherboard €350.00 The brain of the ROEST sample roaster. Changing the PCB is easier than you might think! Here is the guide for replacing this part. Quantity: Add To Cart Added! The brain of the ROEST sample roaster. Changing the PCB is easier than you might think! Here is the guide for replacing this part. You Might Also Like Quick View Led-light for the drum window €100.00 Quick View Quick-fit exhaust adaptor €100.00 Quick View Axial fan, 140mm, cooling €60.00 Quick View 5" TFT LCD Touch Screen €200.00 Quick View Easy-access charge handle kit €60.00