501-7514-03 - Sun Spare (Motherboard) for Fire X4200 / StorageTek 5320 501-7514-03 - Sun Spare (Motherboard) for Fire X4200 / StorageTek 5320 $59.61
501-7590-02 - Sun (Motherboard) for Fire X4200 M2 501-7590-02 - Sun (Motherboard) for Fire X4200 M2 $245.34
501-6979 - Sun Service Processor Board for Fire X4100 / X4200 501-6979 - Sun Service Processor Board for Fire X4100 / X4200 $61.18