Western Digital 0B47747 18 TB 3.5" 7200 RPM SAS internal hard drive

Capacity and interface

The Western Digital 0B47747 is an 18 TB 3.5 inch internal hard drive with a SAS interface. It uses energy-assisted magnetic recording and a 512e format to deliver high capacity for data centre and server workloads. The drive spins at 7200 RPM and is built for continuous 24 7 operation in multi-user environments.

Thermals noise and power

Designed for 24 7 data centre duty the drive manages heat and vibration in dense multi-drive chassis. Its energy-assisted recording method helps maintain performance while keeping power draw in line with enterprise requirements. Acoustic output is controlled for rack environments where many units operate simultaneously.

Build quality and connectivity

The 3.5 inch form factor fits standard enterprise drive bays and the SAS connector supports dual-port connectivity for redundant paths. Proven hardware from the Ultrastar HC555 lineage simplifies qualification and integration into existing storage infrastructure. The 512e format eases deployment with legacy and modern operating systems alike.