Good working Coolscan 4000 motherboard. The item "NIKON COOLSCAN 4000 Mother Board motherboard main Only parts repair circuit" is in sale since Thursday, February 13, 2020. This item is in the category "Computers/Tablets & Networking\Printers, Scanners & Supplies\Scanners". The seller is "nikon_coolscan" and is located in Silver Spring, Maryland. This item can be shipped worldwide.