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Silver 3.5 inch internal hard drive with circuit board visible

Toshiba

Toshiba MG03ACA100 1TB 7200 RPM 64MB SATA 6.0Gb/s 3.5" internal hard drive

SKU CH-2J3A-BR4KN MPN MG03ACA100

1 TB enterprise hard drive with 7200 RPM, 64 MB cache and 24x7 operation for continuous workloads

  • Total capacity1 TB
  • Interface typeSATA 6.0Gb/s
  • Form factor3.5 in (8.89 cm)
  • Flash memory typeHard Drive
  • Rotational speed7,200 RPM
  • Cache memory64 MB

Capacity 1TB

  • Enterprise 24x7 operation for continuous workloads
  • 7200 RPM speed with 64MB cache for responsive performance
  • SATA 6.0Gb/s interface for broad system compatibility
  • 5-inch 26.1mm form factor fits standard drive bays
  • Rotational Vibration Technology stabilises multi-drive arrays

Enterprise 1 TB hard drive

The Toshiba MG03ACA100 is a 3.5-inch SATA hard drive built for 24x7 enterprise workloads. It delivers 1 TB capacity at 7200 RPM with a 64 MB cache and a 6.0 Gbit/s interface. Rotational Vibration Technology helps maintain performance in multi-drive systems. Error Correction Code and optional cryptographic erase add data integrity and security features.

Suited for nearline archives and tiered storage

This drive fits mid-line business servers, disk backup targets and private cloud infrastructure that need cost-effective bulk capacity. It is not for workloads that require solid-state latency or higher throughput than the SATA 6.0 Gbit/s link provides. Buyers needing more than 1 TB per bay should consider higher-capacity models in the same series.

6.0 Gbit/s SATA interface

The single specification that decides fit is the 6.0 Gbit/s SATA host interface. It determines controller, backplane and cabling compatibility in existing enterprise chassis. Verify that your storage system supports this interface before purchase.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $78.99
Cheaper than about 59% of the 4,938 comparable items (median $107.99).
Total capacity 1 TB
Lower than about 60% of the 2,372 comparable items (median 2 TB).
Price per TB $78.99 per TB
Pricier than about 57% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameTOSHIBA
Model nameMG03ACA100
Total capacity1 TB
Recommended useFor Enterprise Storage
Performance
Rotational speed7,200 RPM
Storage
Flash memory typeHard Drive
Cache memory64 MB
Ports & slots
Interface typeSATA 6.0Gb/s
Size & build
Form factor3.5 in (8.89 cm)
Shipping weight1.13 kg
Package size229 × 201 × 36 mm

Other versions of this model

3 more in the same range

Questions about this item

How is the 3.5-inch SATA drive installed in a server chassis, and what step is often missed?

Mount the drive using the standard 3.5-inch screw holes on the bottom or sides, connect the SATA data and power cables, then ensure the host controller is set to 6.0 Gbit/s mode so the drive runs at full interface speed.

What maintenance or replacement will the MG03ACA100 need after extended 24x7 operation?

The drive has no user-serviceable parts; plan to replace the unit once its rated workload or error-rate thresholds are reached, and use the optional cryptographic erase feature to sanitize the 1 TB of data before disposal.

What limit appears first when the 7200 RPM drive runs sustained writes in a multi-bay array?

Rotational vibration from adjacent drives can degrade throughput before the 64 MB cache or 6.0 Gbit/s SATA link saturates, so the RV tolerance of the chassis becomes the practical bottleneck.

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