WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB 7200 RPM SAS 12Gb/s 512E SE P3 0F38353 (WUH721818AL5204)

WD Ultrastar DC HC550 18TB Hard Drive 3.5' Internal 512MB 7200 RPM SAS 12Gb/s 512E SE P3 0F38353 (WUH721818AL5204) Brand: Western Digital Series: Ultrastar DC HC550 Capacity: 18TB RPM: 7200 RPM Interface: SAS 12Gb/s Form Factor: 3.5' Cache: 512MB Features: 18/16TB capacity in a standard 3.5-inch form factor 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 Industry's first Triple Stage Actuator HelioSeal design delivers outstanding power efficiency Self-Encrypting Drive Options