HGST Ultrastar He12 HUH721212AL4204 12 TB Hard Drive - 3.5" Internal - SAS (12Gb/s SAS)

Note: This 12 TB enterprise drive balances massive capacity with reliable performance to power data centers, archives, and mission-critical workloads. Built on PMR technology and designed for seamless SAS integration, the Ultrastar He12 delivers drop-in readiness for demanding environments while maintaining robust data integrity and long-term scalability.

• Massive capacity for dense storage — The HGST Ultrastar He12 delivers an impressive 12 TB of high-density storage in a standard 3.5-inch internal form factor. This capacity is ideal for large-scale backups, archival repositories, media repositories, and database logs that grow day by day. By consolidating more data in fewer drives, you can reduce rack space, lower power consumption per terabyte, and simplify storage management without compromising access to critical information. The He12 is engineered to handle the relentless data growth of today’s data-centric enterprises, delivering scalable capacity that keeps pace with the trajectory of your business needs.
• Enterprise-grade reliability and endurance — Designed to operate in demanding data-center workloads, the Ultrastar He12 is built for continuous availability. It is engineered to withstand intensive usage, providing a stable foundation for file servers, SANs, and hyper-converged infrastructures. With a workload rating aligned to enterprise demands, the He12 helps ensure data readiness and availability across 24/7 operations. Its robust construction, error-correcting capabilities, and attention to reliability make it a trusted component for long-term storage ecosystems, reducing maintenance cycles and enhancing overall service continuity.
• PMR technology with drop-in enterprise readiness — Featuring PMR (perpendicular magnetic recording) technology, the He12 harnesses density and performance in a mature, proven recording method. This enables reliable, consistent data writing and retrieval at large capacities while preserving compatibility with standard enterprise backplanes and SAS controllers. The PMR architecture supports stable performance in sustained workloads, making it well-suited for environments where predictable access times and data integrity are paramount.
• SAS interface with dual-port redundancy — The drive uses a 12 Gb/s SAS interface, providing high-bandwidth data transfer and low-latency access for demanding workloads. The dual-port SAS design enhances availability by allowing failover paths in storage networks and backplanes, which is critical for mission-critical applications, backups, and virtualization environments. This interface supports integration with a wide range of enterprise servers and storage arrays while maintaining robust data protection and compatibility with modern controllers.
• Drop-in compatibility for data-center environments — The Ultrastar He12 is built for easy integration into existing infrastructure. Its 3.5-inch internal footprint aligns with standard server and storage enclosures, backplanes, and RAID controllers. This enables straightforward upgrades or scale-out expansions without major rearchitecting. IT teams can leverage familiar tooling for firmware updates, drive replacement, and array management, ensuring a smooth transition and minimizing downtime during capacity expansions.

Technical Details of HGST Ultrastar He12 HUH721212AL4204

• Capacity: 12 TB
• Form factor: 3.5-inch internal drive
• Interface: SAS 12 Gb/s (dual-port)
• Technology: PMR (perpendicular magnetic recording)
• Workload capability: Designed for enterprise workloads up to 550 TB/year

How to install HGST Ultrastar He12

• Power down the server or storage chassis and remove the appropriate drive bay or service panel to access the backplane.
• Insert the Ultrastar He12 into a compatible 3.5-inch SAS drive bay or hot-swap sled in the backplane, ensuring the connector aligns properly with the backplane’s SAS interface.
• Secure the drive with the bay’s mounting hardware and connect the SAS data and power backplane cables as specified by your hardware manufacturer or RAID controller documentation.
• Power on the system, enter the RAID or storage controller utility, and initialize the new drive. Configure it into a logical drive or array as required by your deployment (RAID, JBOD, or software-defined storage), and format the volume in the operating system after the array is recognized.

Frequently asked questions

• Q: What is the capacity and form factor of this drive? A: It is a 12 TB, 3.5-inch internal hard drive designed for SAS-based enterprise storage.
• Q: What interface does it use? A: The Ultrastar He12 uses a SAS 12 Gb/s interface with dual-port capability for redundancy and performance.
• Q: What workloads is it intended for? A: It is built for enterprise workloads and data-center use, including backups, archiving, virtualization, and active databases, with a workload rating up to 550 TB/year.
• Q: Is this drive compatible with my server backplane? A: It is designed for standard 3.5-inch enterprise backplanes and SAS controllers. Verify your backplane supports 12 Gb/s SAS and dual-port operation for best compatibility.
• Q: What are the benefits of PMR technology in this drive? A: PMR enables high-density storage with proven reliability, delivering consistent performance and drop-in readiness for enterprise environments that rely on stable, scalable storage.