Toshiba MG10-D Series 4TB Enterprise Capacity Hard Drive

The Toshiba MG10-D Series 4TB Enterprise Capacity Hard Drive (model MG10ADA400E) is a 3.5-inch, 7200 RPM SATA hard drive engineered for demanding server and data-centre environments. Built on Conventional Magnetic Recording (CMR) technology, it offers broad compatibility with existing enterprise storage infrastructure, avoiding the host-managed complexity associated with SMR drives. At the heart of the MG10-D Series is Toshiba's Persistent Write Cache Technology, which protects in-flight data during sudden power-loss events — a critical safeguard for workloads where data integrity cannot be compromised. The drive is available with Sanitize Instant Erase (SIE) and Self-Encrypting Drive (SED) options, enabling organisations to meet data-security and end-of-life compliance requirements without additional hardware. The MG10ADA400E variant uses a 512e sector configuration (512-byte logical, 4096-byte physical blocks), delivering a maximum sustained data transfer rate of up to 268 MiB/s. A large 512 MiB buffer supports bursty sequential workloads common in NAS arrays, RAID sets, and tiered storage systems. The drive is rated for a 550 TB per year workload, making it suitable for continuous 24/7 operation in multi-drive enclosures. With a competitive active-idle power draw of 3.49 W (Write/Read 4KB Q1: 7.29 W), the MG10-D Series achieves a low watts-per-terabyte ratio that contributes to a favourable total cost of ownership (TCO) in high-density deployments. The drive operates on standard 12 V (±10%) and 5 V (+10%/−7%) rails. Verified Specifications: - Model: MG10ADA400E - Series: MG10-D - Capacity: 4 TB - Form Factor: 3.5-inch (26.1 mm height) - Interface: SATA-3.3 (6.0 / 3.0 / 1.5 Gbit/s) - Rotation Speed: 7200 RPM - Buffer Size: 512 MiB - Max Sustained Transfer Rate: 268 MiB/s - Sector Format: 512e (512 B logical / 4096 B physical) - Recording Technology: CMR - Workload Rating: 550 TB/year - Active Idle Power: 3.49 W - Write/Read 4KB Q1 Power: 7.29 W - Supply Voltage: 12 V (±10%), 5 V (+10%/−7%) - Warranty: 5 Years - Security Options: SIE and SED (model-dependent)