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On March 4, 2026, Seagate unveiled the shipment of the world's highest-capacity mechanical hard drive at 44TB, with the initial batch earmarked for two leading cloud service providers. This hard drive is built on the Mozaic 4+ platform and leverages a combination of HAMR (Heat-Assisted Magnetic Recording) and CMR (Conventional Magnetic Recording) technologies. It achieves an impressive single-disk capacity of 4.4TB spread across 10 disks. The drive maintains a sustained data transfer rate of roughly 300MB/s and operates at the industry-standard speed of 7200RPM. When compared to the prevalent 30TB hard drives, the new 44TB model enhances infrastructure efficiency by approximately 47% in large-scale, exabyte deployments. Furthermore, it reduces the physical footprint of data centers by about 9 square meters and slashes annual power consumption by roughly 800,000 kWh.
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