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Silver 3.5 inch bare hard drive with exposed circuit board

Toshiba

Toshiba MG03ACA400 4TB 7200 RPM 64MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-W1JG-CZ1SA MPN MG03ACA400

A 4 TB enterprise hard drive with 7200 RPM speed, 64 MB cache and SATA 6.0 Gb/s interface built for 24x7 operation

  • PackagingBare Drive
  • InterfaceSATA 6.0Gb/s
  • Capacity4TB
  • RPM7200 RPM
  • Cache64MB
  • Features24x7 Operation Error Correction Code Optional Fast and Secur

Options 4TB

  • 4 TB capacity for large-scale data archives
  • 7200 RPM spindle speed for responsive enterprise workloads
  • 64 MB cache buffer to smooth burst transfers
  • 24x7 operation rating for continuous server duty
  • Rotational vibration technology for stable multi-drive arrays

Enterprise storage drive

The Toshiba MG03ACA400 is a 4TB 3.5-inch internal hard drive built for 24x7 enterprise workloads. It delivers 7200 RPM performance over a SATA 6.0Gb/s interface with a 64MB cache. This unit suits server arrays, backup targets and tiered cloud infrastructure requiring sustained throughput.

Bare drive mounting and vibration tolerance

Supplied as a bare drive, it fits standard 3.5-inch bays with a 26.1 mm z-height. Rotational Vibration Technology maintains stability when installed alongside multiple drives in dense enclosures. The SATA connector and power pins follow the familiar layout for quick integration into existing caddies or backplanes.

Capacity and speed decision point

At 4TB and 7200 RPM this model sits at the top of the MG03ACA line for single-drive capacity. Buyers needing more storage per bay must look beyond this series. The SATA 6.0Gb/s link caps peak transfer, so workloads demanding higher bus bandwidth will not be satisfied.

Highlights

  • 4 TB capacity for large-scale data archives
  • 7200 RPM spindle speed for responsive enterprise workloads
  • 64 MB cache buffer to smooth burst transfers
  • 24x7 operation rating for continuous server duty
  • Rotational vibration technology for stable multi-drive arrays

Specifications

BrandTOSHIBA
ModelMG03ACA400
PackagingBare Drive
InterfaceSATA 6.0Gb/s
Capacity4TB
RPM7200 RPM
Cache64MB
Features24x7 Operation
Error Correction Code
Optional Fast and Secure Cryptographic Erase SED Function
UsageFor Enterprise Storage
Form Factor3.5"
Shipping weight0.65 kg
Package size163 × 109 × 30 mm

Other versions of this model

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Questions about this item

Does the SATA 6.0Gb/s interface limit real-world throughput to the 6 Gbit/s line rate?

The SATA 6.0Gb/s link caps burst transfers at 6 Gbit/s; sustained sequential reads from the 7200 RPM platters typically run well below that ceiling.

Will the 26.1 mm height fit a standard 3.5-inch drive bay or hot-swap tray?

Yes, the industry-standard 3.5-inch 26.1 mm form factor matches common server bays and desktop cages without adapters.

Is any jumper or BIOS setting required to enable the 6.0Gb/s link on this bare drive?

No jumpers are needed; the drive auto-negotiates 6.0Gb/s on any compliant SATA controller, but the host must also support 6 Gbit/s.

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