Western Digital Ultrastar DC HC650 20TB 7200RPM SAS 12Gb/s 3.5-inch HDD (ISE)

The Western Digital Ultrastar DC HC650 20TB is a 3.5-inch enterprise hard disk drive engineered for hyperscale datacenters, cloud storage infrastructure, and high-density rack deployments. Built on Western Digital's ninth-generation HelioSeal platform, the drive is hermetically sealed with helium to reduce internal turbulence, lower operating temperatures, and achieve a higher areal density than air-filled drives. The SAS 12Gb/s dual-port interface delivers the reliability and multi-path I/O capabilities demanded by mission-critical enterprise storage arrays, while the 7200RPM spindle speed and 512MB cache buffer provide sustained throughput suited to both sequential and mixed workloads.

The HC650 carries an ISE (Instant Secure Erase) designation, enabling cryptographic erasure of all user data in seconds without physical destruction — a critical capability for data center asset refresh, drive redeployment, and end-of-life data sanitization compliance. The drive is rated for a 550TB per year workload, reflecting its design intent for always-on enterprise environments operating under continuous read/write demand. With an annualized failure rate (AFR) of 0.35%, the HC650 meets the reliability expectations of petabyte-scale storage deployments where drive uptime directly affects service availability.

Targeted at object storage, active archive, video surveillance at scale, big data analytics, and AI training dataset repositories, the Ultrastar DC HC650 is optimized for capacity-dense environments where maximizing usable terabytes per rack unit is a primary economic and operational driver. Western Digital's consistent HelioSeal manufacturing and rigorous qualification testing make this model a trusted selection for integration into enterprise JBOD enclosures, storage servers, and NAS/SAN platforms deployed across UAE, GCC, EMEA, and APAC datacenters.

Ideal for

• Hyperscale cloud object storage nodes requiring maximum raw capacity per rack unit
• Active archive and cold-tier storage platforms for media, backup, and long-retention compliance data
• AI and machine learning training infrastructure where large dataset repositories demand high-density sequential read performance
• Big data analytics clusters ingesting and retaining petabyte-scale structured and unstructured data
• High-density video surveillance storage backends managing continuous multi-stream recording and retention
• Enterprise NAS and SAN arrays requiring dual-port SAS reliability with secure end-of-life data sanitization via ISE

Technical specifications

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