Your go-to destination for cutting-edge server products

MG03ACA400 Toshiba 4TB 7.2K RPM 64MB Buffer SATA 6GBPS 3.5Inch HDD

MG03ACA400
* Actual product may vary from image shown.
Hover on image to enlarge

Brief Overview of MG03ACA400

Toshiba MG03ACA400 4TB 7.2K RPM 64MB Buffer SATA 6GBPS 3.5Inch Hard Disk Drive. Excellent Refurbished with 1 year replacement warranty

$133.65
$99.00
You save: $34.65 (26%)
Ask a question
+
Quote

Additional 7% discount at checkout

SKU/MPNMG03ACA400Availability✅ In StockProcessing TimeUsually ships same day ManufacturerToshiba Product/Item ConditionExcellent Refurbished ServerOrbit Replacement Warranty1 Year Warranty
Google Top Quality Store Customer Reviews
Our Advantages
Payment Options
  • — Visa, MasterCard, Discover, and Amex
  • — JCB, Diners Club, UnionPay
  • — PayPal, ACH/Bank Transfer (11% Off)
  • — Apple Pay, Amazon Pay, Google Pay
  • — Buy Now, Pay Later - Affirm, Afterpay
  • — GOV/EDU/Institutions PO's Accepted 
  • — Invoices
Delivery
  • — Deliver Anywhere
  • — Express Delivery in the USA and Worldwide
  • — Ship to -APO -FPO
  • For USA - Free Ground Shipping
  • — Worldwide - from $30

Same product also available in:

Description

Product Overview of Toshiba MG03ACA400 4TB Hard Disk Drive

The Toshiba MG03ACA400 is a high-capacity 4TB enterprise-class hard disk drive designed for reliable data storage, consistent performance, and long-term durability. Built for business-critical workloads, this 3.5-inch SATA HDD delivers a balanced combination of speed, stability, and cost-efficiency, making it suitable for servers, data centers, and professional storage environments.

General Information

  • Manufacturer: Toshiba
  • Part Number: MG03ACA400
  • Device Type: Hard Disk Drive (HDD)

Technical Information

  • Form Factor: 3.5-inch internal drive
  • Storage Capacity: 4TB
  • Interface: SATA 6Gb/s
  • Rotational Speed: 7,200 RPM
  • Average Latency: 4.17 ms
  • Average Seek Time (Read): 8.5 ms
  • Average Seek Time (Write): 9.5 ms

Data Transfer Efficiency

  • Sustained Transfer Rate (Max): Up to 165 MB/s
  • Buffer Size: 64 MiB FIFO ring buffer
  • Interface Speed: SATA 6.0 Gb/s

Durable Mechanical Structure

  • Enterprise-grade internal components
  • Vibration-resistant design for multi-drive systems
  • Optimized airflow compatibility for server racks

Physical Dimensions

  • Width: 101.6 mm
  • Depth: 147 mm
  • Height: 26.1 mm
  • Weight: Up to 720g

Ideal Applications

  • Data center storage systems
  • Enterprise backup and archival solutions
  • RAID storage arrays
  • Cloud infrastructure storage nodes
  • Surveillance recording systems

Workload Suitability

  • High-capacity sequential data storage
  • Read-intensive workloads
  • Continuous 24/7 operation environments
  • Business-critical data retention systems

Reliability and Operational Stability

  • Error correction and detection mechanisms
  • Enhanced vibration tolerance
  • Thermal monitoring support
  • Optimized firmware for stable performance

Compatibility Highlights

  • Compatible with SATA III motherboards
  • Works with RAID controllers
  • Supports NAS and DAS systems
  • Suitable for enterprise storage servers

Key Benefits

  • Large 4TB storage capacity for bulk data handling
  • Stable 7200 RPM performance for consistent throughput
  • Enterprise-grade durability and reliability
  • Efficient SATA 6Gbps interface for fast data transfer
  • Optimized for continuous operation environments

Toshiba MG03ACA400 4TB 7.2K RPM SATA Hard Disk Drive 

The Toshiba MG03ACA400 4TB 7.2K RPM 64MB Buffer SATA 6GBPS 3.5 Inch Hard Disk Drive belongs to a highly reliable class of enterprise-oriented storage solutions designed for data-intensive workloads, long-term durability, and consistent performance in server and workstation environments. This category of 3.5-inch SATA hard disk drives is engineered to deliver stable throughput, optimized caching efficiency, and sustained read/write operations for business-critical applications, archival storage systems, surveillance infrastructures, and large-scale data centers.

Within the broader storage ecosystem, this hard drive category represents a balance between cost efficiency and enterprise-grade reliability. The Toshiba MG series is known for its engineered durability, making it suitable for environments where continuous operation is required. The 4TB capacity model specifically offers expanded storage density while maintaining mechanical stability through controlled spindle rotation and advanced firmware optimization.

Enterprise-Class Design Philosophy of Toshiba MG Series HDD

The Toshiba MG series, including the MG03ACA400 model, is designed with a focus on 24/7 operational stability. Unlike consumer-grade hard drives, this category is built for environments where downtime is not acceptable. The internal architecture is reinforced to handle sustained workloads, and the mechanical components are calibrated for reduced vibration and heat accumulation during extended usage cycles.

This reliability-first design philosophy ensures that the drive performs consistently under heavy workloads such as database management, virtualization storage pools, and enterprise backup systems. The combination of firmware-level error correction and hardware durability makes it suitable for mission-critical deployments.

Optimized Firmware for Data Integrity

The firmware embedded in this category of Toshiba hard drives plays a crucial role in maintaining data integrity. It continuously monitors read/write operations, corrects potential errors, and ensures that stored information remains accurate over time. The MG03ACA400 model incorporates advanced sector management techniques that minimize the risk of data corruption even under high usage intensity.

This level of firmware optimization is particularly important in environments where large volumes of data are written and retrieved continuously, such as cloud storage infrastructures and enterprise file servers.

Storage Capacity and Performance Characteristics

The 4TB storage capacity of this hard drive category allows organizations to scale their data storage infrastructure without significantly increasing hardware footprint. This makes it suitable for rack-mounted server environments where space optimization is a critical consideration.

By offering a high storage-to-cost ratio, the MG03ACA400 supports efficient data consolidation strategies, reducing the need for multiple smaller drives and simplifying storage management.

7200 RPM Spindle Speed and Data Access Efficiency

The 7.2K RPM rotational speed is a key performance characteristic of this category. It ensures faster mechanical access to stored data compared to lower RPM drives. This results in improved read and write performance, especially in sequential data operations common in enterprise environments.

The spindle speed is carefully balanced to provide a combination of performance and thermal stability. This ensures that the drive maintains consistent throughput without excessive heat generation, which is critical for long-term system reliability.

64MB Buffer Cache Optimization

The integrated 64MB buffer memory enhances data handling efficiency by temporarily storing frequently accessed data. This reduces the number of physical disk reads required, thereby improving overall system responsiveness.

In workloads involving repetitive data access patterns, such as virtualization or database indexing, the buffer plays a significant role in maintaining stable performance levels. It helps smooth out data flow and reduces latency during peak operations.

SATA 6GBPS Interface and Compatibility

The SATA 6GBPS interface ensures that the Toshiba MG03ACA400 can integrate seamlessly into modern computing systems. This interface provides sufficient bandwidth for high-speed data transfer between the drive and the host system, minimizing bottlenecks during intensive operations.

Even though mechanical drives cannot fully saturate the SATA 6GBPS bandwidth, the interface ensures that performance limitations are minimized and that data throughput remains consistent across various workloads.

Broad System Compatibility

This category of hard drives is widely compatible with servers, RAID configurations, and desktop systems that support SATA interfaces. This makes it a flexible storage solution for both enterprise and semi-professional environments.

Its compatibility extends to a variety of operating systems and storage controllers, ensuring smooth integration into existing infrastructure without requiring specialized hardware modifications.

Vibration Resistance and Mechanical Stability

In multi-drive systems, vibration can significantly impact performance and reliability. This category of hard drives incorporates vibration-resistant technologies that minimize the impact of external mechanical disturbances.

By stabilizing internal components, the drive maintains consistent read/write accuracy even when deployed in stacked or densely packed storage arrays.

Use Cases and Application Scenarios

The MG03ACA400 is widely utilized in enterprise data centers where large-scale storage capacity and reliability are essential. It supports continuous data operations, making it ideal for cloud storage systems, backup servers, and centralized data repositories.

Its endurance and predictable performance characteristics ensure that data center operations remain stable even under high workloads and continuous access demands.

Surveillance Storage Systems

This category of hard drives is also suitable for surveillance systems requiring long-term video storage. Security infrastructures that record continuous footage benefit from the drive’s sustained write capabilities and large storage capacity.

The ability to handle sequential write operations efficiently makes it a strong choice for CCTV and monitoring systems deployed in commercial and industrial environments.

Business Workstations and RAID Configurations

The MG03ACA400 can be integrated into RAID arrays to enhance redundancy and performance. In business workstations, it provides reliable storage for large datasets, design files, and analytical workloads.

RAID configurations utilizing this drive category benefit from improved data protection and load balancing, ensuring uninterrupted workflow continuity.

Error Correction and Data Protection Mechanisms

The drive includes advanced error correction systems that detect and repair data inconsistencies during read and write operations. This ensures high levels of data integrity and reduces the likelihood of data loss in critical applications.

These mechanisms are essential for maintaining reliability in environments where data accuracy is paramount, such as financial systems and enterprise databases.

Energy Efficiency

The MG03ACA400 is designed to balance performance with energy efficiency. Its power management system ensures that energy consumption remains within optimal limits during both active and idle states.

This contributes to reduced operational costs in large-scale deployments where multiple drives operate simultaneously.

Intelligent Idle State Management

When not under active load, the drive can transition into optimized idle states that reduce mechanical stress and power usage. This feature helps extend the overall lifespan of the device while maintaining readiness for immediate activation when required.

Data Storage Architecture and Internal Mechanics

The Toshiba MG03ACA400 utilizes advanced magnetic recording technology to store data on spinning platters. This proven storage method ensures high data density and reliable long-term retention.

The precision of magnetic alignment contributes to stable read/write performance and minimizes the risk of data degradation over time.

Precision Actuator System

The actuator system is responsible for positioning the read/write heads with high accuracy. In this category of hard drives, the actuator is engineered for rapid yet controlled movement, ensuring that data access times remain consistent across various workloads.

This mechanical precision is essential for maintaining performance stability in environments with high data transaction rates.

Integration into Modern IT Infrastructure

The MG03ACA400 is designed to scale efficiently within modern IT infrastructures. Whether deployed in small server setups or large enterprise storage networks, it adapts seamlessly to expanding data requirements.

Its compatibility with standard storage interfaces allows IT administrators to integrate it into existing systems without extensive reconfiguration.

Role in Hybrid Storage Solutions

This category of hard drives often serves as a component in hybrid storage architectures, where it complements solid-state drives by providing high-capacity bulk storage. While SSDs handle high-speed processing tasks, HDDs like the MG03ACA400 manage long-term data retention efficiently.

Features
Product/Item Condition:
Excellent Refurbished
ServerOrbit Replacement Warranty:
1 Year Warranty