MG04SCA300A Toshiba MG04 3TB SAS 64 MB 3.5" Server HDD

High-Performance 3.5in Enterprise SAS HDD featuring 4Kn CMR media for bulk storage with the MG04SCA300A

MG04SCA300A is a 3.5in internal enterprise HDD engineered for SAS server and JBOD backplanes where predictable latency, deterministic error handling, and sustained duty cycles matter more than peak IOPS. Designed for 24x7 operation, it aligns to data centre storage nodes that prioritise throughput-oriented capacity tiers, consistent rebuild behaviour, and long service intervals in mixed workload environments.

With a 7.2K spindle and 64MB cache, MG04SCA300A supports stable streaming performance for sequential and mid-queue workloads while keeping power draw controlled for dense chassis. The 4Kn native sector format is optimised for modern OS and controller stacks that are already 4K-aligned, reducing write amplification and helping maintain steady performance during parity operations. CMR recording on MG04SCA300A is well-suited to backup windows, archival rotations, and general-purpose enterprise HDD replacement in existing SAS infrastructure, especially where RAID consistency and sustained writes are required.

Why Choose the MG04SCA300A?

MG04SCA300A delivers an enterprise-appropriate balance of capacity density and operational predictability for bulk tiers, enabling straightforward scaling in SAS-based enclosures without redesigning the storage layer. Its 4Kn CMR approach supports stable RAID behaviour, while the 24x7 duty profile targets continuous service in shared storage pools and departmental data platforms.

Toshiba designs the MG series with a focus on reliability engineering, consistent manufacturing controls, and interoperability with standard server and JBOD architectures, supporting data centre requirements for continuous operation and long-term fleet management.

Key Applications:

• Data centre bulk storage tiers
• Backup and archival repositories
• SAS JBOD expansion shelves
• General-purpose enterprise HDD refresh

At Happyware - Server Hardware you benefit from non-binding offers tailored to MG04SCA300A rollouts in servers or JBOD expansions, and you can secure bulk order discounts to standardise capacity deployments across larger drive populations.