FOR Z420 Mainboard (Motherboard) 619557-001 / 619557-501 / 618263-001

Replacement FOR Z420 motherboard (mainboard) matching OEM part numbers 619557-001, 619557-501 and 618263-001. This listing is for the Z420 mainboard assembly and is intended as a direct swap for systems requiring any of the three listed part numbers. Verify your machine's required part number (619557-001, 619557-501 or 618263-001) before purchasing to ensure compatibility.