540-6485-N
Replacement Internal 250GB 7200 RPM Serial ATA Hard Disk Drive (Hitachi) for the Sun Fire X2100, X2100 M2, X2200 M2; Sun Ultra 20, 20 M2, 25, 40, 40 M2, and 45 Workstations. RoHS-6 Compliant. XRB-ST1CE-250G7K Replaces 540-6521, 540-6596 & 540-6666