MG04ACA300A Toshiba MG04 3TB SATA 128 MB 3.5" Server HDD

Enterprise 3.5-inch SATA Capacity HDD architecture with 4Kn CMR reliability using the MG04ACA300A

The MG04ACA300A is a 3TB enterprise internal 3.5-inch HDD engineered for bulk storage tiers where predictable latency, sustained throughput, and continuous duty matter more than peak IOPS. As a 7200 RPM, CMR-based drive with 4Kn sector formatting, it aligns with modern server and array controllers that optimize for large-block sequential operations and consistent write behavior under RAID and JBOD conditions.

In a typical rack server platform, the MG04ACA300A integrates cleanly into SATA backplanes and HBA/RAID configurations, preserving valuable PCIe slots for higher-value expansion such as NVMe pools, high-speed networking, or GPU accelerators. Its 128MB cache and rotational design support steady streaming performance for backup windows and capacity pools, while 4Kn reduces sector translation overhead in compatible stacks, improving efficiency in large-volume file systems and object repositories.

Why Choose the MG04ACA300A?

The MG04ACA300A provides an enterprise-appropriate density-to-cost profile for capacity-first tiers without compromising operational discipline for 24x7 environments. It is well suited to scaling-out with many spindles in RAID groups or JBOD shelves, where consistent CMR write characteristics simplify rebuild behavior and capacity planning, and where MTBF targets support long-lived deployments.

Toshiba designs the MG series around data center expectations for reliability, predictable qualification, and sustained operation. The engineering approach focuses on stable firmware behavior in mixed-drive environments, compatibility with standard SATA infrastructure, and dependable lifecycle characteristics aligned to modern storage architectures.

Key Applications:

• Data center bulk storage tiers
• RAID and JBOD storage shelves
• Backup repositories
• Archival capacity pools
• General-purpose server storage

At Happyware - Server Hardware you benefit from non-binding offers tailored to MG04ACA300A deployment quantities and shelf layouts, helping you standardize capacity tiers efficiently. For fleet rollouts, Bulk Order Discount supports cost-controlled expansion of MG04ACA300A-based storage pools.