Seagate has introduced the Exos M series, a range of enterprise-grade mechanical hard drives available in 30TB and 32TB capacities. The two models, the 30TB CMR ST30000NM004K and the 32TB SMR ST32000NM003K, each offer a minimum of 3TB per disk and use a standard 3.5-inch form factor for easy integration into existing server setups. These drives feature a SATA III interface with data transfer rates up to 6 Gbps and include a 512GB multi-segment cache to enhance data handling performance. The 30TB model operates at 7200 RPM and provides a maximum sustained data transfer rate of 275MB/s (262MiB/s). Energy efficiency is a key aspect, with average idle power consumption of 6.9W and a peak of 9.5W during random read operations, making them cost-effective for continuous use in enterprise environments.

The Exos M series is built on Seagate's Heat-Assisted Magnetic Recording (HAMR) platform and incorporates Mozaic 3+ technology to increase storage density and reliability. HAMR technology allows for higher data densities by using heat to assist in the magnetic recording process, enabling larger storage capacities within the same physical disk space. This makes the Exos M series suitable for data centers handling large-scale data analytics, artificial intelligence tasks, and other data-intensive applications. While the Exos M series is similar to the previously launched Exos X Mozaic 3+ models, specific differences between the two series have not been provided, indicating possible iterative improvements or optimizations for evolving enterprise requirements.

Regarding reliability and durability, the 30TB CMR ST30000NM004K model comes with a five-year limited warranty and has an annualized failure rate of 0.35%. It also features a mean time between failures of 2.5 million hours and an unrecoverable read error rate of 1 in 10^15, ensuring dependable performance for critical applications. These specifications make the Exos M series appropriate for environments that require high uptime and consistent data access. Additionally, the energy efficiency of the Exos M drives—being approximately three times more efficient per terabyte compared to traditional hard drives—helps reduce operational costs and lower thermal output.