The Seagate Exos X20 20TB Enterprise Hard Drive (Model: ST20000NM001J) is engineered to meet the demanding requirements of enterprise data centers, cloud storage providers, and heavy-duty multi-bay NAS storage arrays. Designed to deliver maximum storage density and scalable capacity, the Exos X20 series integrates helium side-sealed drive technology, significantly reducing aerodynamic drag and operational power consumption.
Utilizing Conventional Magnetic Recording (CMR) technology, the ST20000NM001J provides fast and reliable write performance without the latency associated with SMR drives. With a 7200 RPM spindle speed, a 256 MB multisegmented cache, and a SATA 6 Gb/s interface, it achieves sustained transfer speeds up to 285 MB/s. Built for continuous 24/7 workloads, it features advanced rotational vibration (RV) sensors, PowerChoice technology for customized energy savings, and a high workload rating of 550 TB/year with a 2.5 million-hour MTBF rating.
Comprehensive Key Features:
20TB Hyperscale Capacity: High-density 3.5-inch drive designed to maximize rack space and reduce Total Cost of Ownership (TCO).
Helium-Sealed Enclosure: Sealed chassis technology lowers internal friction, operating temperature, and overall power consumption.
CMR Technology: Native Conventional Magnetic Recording delivers fast, consistent read and write speeds across enterprise workloads.
Enterprise 24/7 Reliability: Rated for 2.5 million hours MTBF with a high workload limit of up to 550 TB/year.
High Transfer Speeds: Operates at 7200 RPM with a 256 MB cache, delivering sustained data transfer rates up to 285 MB/s.
Rotational Vibration (RV) Sensors: Maintains stable performance and data protection in high-density multi-drive RAID racks.
Extended Technical Specifications:
Model / SKU: ST20000NM001J (Seagate Exos X20)
Capacity: 20 TB
Form Factor: 3.5-inch Enterprise Drive
Interface: SATA 6 Gb/s (SATA III)
Recording Technology: CMR (Conventional Magnetic Recording)
Rotational Speed: 7,200 RPM
Buffer / Cache Size: 256 MB
Max. Sustained Transfer Rate: Up to 285 MB/s
Reliability & Workload:
Workload Rate Limit (WRL): 550 TB/year
Mean Time Between Failures (MTBF): 2,500,000 hours
24/7 Continuous Operation: Yes
Non-recoverable Read Errors Rate: 1 sector per 10^15 bits read
Power & Thermal Management:
Operating Power (Random Read/Write): ~9.4 W
Idle Power: ~5.4 W
PowerChoice / PowerBalance Technology: Integrated
Environmental & Acoustics:
Operating Temperature: 5°C to 60°C (41°F to 140°F)
Vibration Control: Dual-plane balance with RV sensors