18TB Western Digital Ultrastar DC HC550 Hard Drive Disk - 3.5-Inch - SATA 6.0Gb/s - 7200RPM - 512MB Cache - 0F38459

Raising the Capacity Bar with New TechnologiesThe WD Ultrastar DC HC550 18TB hard drive provides higher capacity and better power efficiency than the same-form-factor 14TB Ultrastar helium-filled drives. It performs powerfully and reliably in all data centers including high rotational vibration environments and multi-drive systems. WD Ultrastar DC HC550 18TB is the first HDD in the industry to harness Energy-Assisted Magnetic Recording (EAMR) technology improves writability and therefore increases areal density. CMR technology works with all capacity enterprise applications & environments Reliable, field-proven, 6th generation design Industry’s first HDD with Energy-Assisted Magnetic Recording technology HelioSeal® design delivers outstanding power efficiency 2.5M hours (projected) MTBF2 rating & 5-year limited warranty Western Digital 5 Year Limited Warranty SKU 0F38459 Brand Western Digital Series Ultrastar DC HC550 Capacity 18TB RPM 7200 RPM Type 3.5" I