Detailed Specifications
Seagate ST4000NM0125 Exos 7E8 4TB 7200 RPM SATA 6Gb/s 128MB Cache 3.5-inch Enterprise HDD
Overview
The Seagate ST4000NM0125 is a professional-grade 4TB enterprise hard drive from the Exos 7E8 series (formerly Enterprise Capacity 3.5). This drive is purpose-built to support the most demanding 24/7 bulk data storage requirements in high-density data centers and cloud architectures. Engineered for consistent performance, it features advanced write caching and specialized algorithms that ensure data integrity and speed in multi-drive RAID environments. With a workload rating of up to 550TB per year and a 2 million-hour MTBF, the Exos 7E8 offers industrial-strength reliability that far exceeds standard desktop drives. It is an ideal choice for structured data storage, digital content archives, and centralized backup systems where stability and long-term durability are critical.
Key Features
Enterprise Reliability: Built for 24/7, 365 operation in mission-critical environments.
550TB/Year Workload: Optimized to handle heavy data traffic and constant write cycles.
Advanced Write Caching: Improves response times and ensures faster data processing.
RAID Performance: Enhanced vibration resistance for stable operation in multi-drive chassis.
Seagate Secure: Designed with advanced security features to protect data at rest.
Technical Specifications
| Attribute | Specification |
| Brand | Seagate |
| Part Number | ST4000NM0125 |
| Category | Enterprise Internal Hard Drive |
| Series | Exos 7E8 |
| Capacity | 4 TB |
| Interface | SATA 6Gb/s |
| Rotational Speed | 7200 RPM |
| Buffer / Cache | 128 MB |
| Form Factor | 3.5 inch |
| Sustained Transfer Rate | Up to 226 MB/s |
| MTBF | 2.0 Million Hours |
| Dimensions (L x W x H) | 5.80 x 4.01 x 1.03 in (147.0 x 101.8 x 26.1 mm) |
| Weight | 1.56 lbs (705 g) |
| Sector Size | 512 Native (512n) |
