Western Digital WD Ultrastar Enterprise HDD 18TB 3.5″ SATA 512MB 7200RPM 512E SE NP3 DC HC550 24×7 Server 2.5mil hrs MTBF 5yrs WUH721818ALE6L4 LD2-0F38459

The WD Ultrastar DC HC550 18TB 3.5″ HDD (Model: WUH721818ALE6L4) is a high-capacity, enterprise-grade hard drive designed for data center and cloud storage environments. Featuring 4Kn sector formatting, a massive 18TB storage capacity, and a 512MB cache, it delivers exceptional performance and reliability for demanding workloads. Built on HelioSeal technology, it offers lower power consumption and improved storage density. With a 7200 RPM speed and advanced vibration protection, the HC550 ensures consistent performance and durability. Its key benefits include high efficiency, scalability, and reduced total cost of ownership, making it ideal for hyperscale deployments and mission-critical applications.