WD Ultrastar DC HC550 18TB 3.5" Internal SAS HDD — 7200rpm, 12Gb/s

High-capacity WD Ultrastar DC HC550 internal hard drive engineered for enterprise and data center storage. This 3.5" drive delivers 18TB of raw capacity and spins at 7200rpm, connecting via a 12Gb/s SAS interface for robust throughput and reliability. Ideal for servers, storage arrays, and high-density enclosures. Key specifications: - Model: WD Ultrastar DC HC550 - Capacity: 18TB - Form factor: 3.5" - Spindle speed: 7200rpm - Interface: 12Gb/s SAS - Drive type: Internal Hard Disk Drive