Western Digital Ultrastar DC HC550 18TB 7200RPM SATA 6Gb/s 3.5-inch Enterprise HDD WUH722018CLE6I4

The Western Digital Ultrastar DC HC550 18TB (WUH722018CLE6I4) is a 3.5-inch enterprise-class hard disk drive built for mission-critical datacenter, cloud, and high-performance storage deployments. It spins at 7200 RPM, interfaces via SATA 6Gb/s, and carries a 512MB cache buffer, delivering high sustained sequential throughput and the low-latency random I/O characteristics demanded by dense server and JBOD configurations operating at continuous workloads.

The DC HC550 18TB is rated for 550TB/year annual workload and a 2,500,000 hours MTBF, certifying it for 24×7 data centre operation across multi-drive enclosures. CMR recording technology ensures predictable write behaviour and deterministic rebuild times in RAID arrays — a critical requirement for enterprise storage administrators. Rotational vibration (RV) sensors actively compensate for chassis-level vibration in densely populated drive bays, maintaining sustained throughput under real-world server conditions. Sector size is 512e.

Omnixon Global stocks the Ultrastar DC HC550 18TB (WUH722018CLE6I4) for enterprise procurement across the UAE, GCC, MENA, and EMEA. This drive is a proven building block for hyperscale cold storage tiers, AI training dataset repositories, enterprise backup vaults, object storage clusters (Ceph, MinIO), and high-capacity RAID storage arrays in colocation and on-premises datacenters.

Ideal for

• High-density JBOD and SAN storage arrays requiring CMR write consistency and reliable RAID rebuild performance
• Cloud and hyperscale datacenters deploying warm or cold storage tiers for object storage at scale
• AI and machine learning infrastructure storing large training datasets requiring sustained sequential read throughput
• Enterprise backup and archival systems replacing tape with high-capacity spinning media for rapid restore
• Colocation and managed service providers expanding raw capacity with cost-efficient 18TB density nodes
• Video surveillance back-end archive storage requiring continuous write workloads at high channel counts

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.