854520-B21 Technical Specifications
HP 480GB SATA 2.5in MU NHP SSD
Manufacturer HPE
Manufacturer Part # 854520-B21
Memory Type SSD
Capacity 480GB
size 2.5 inch
SATA
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854520-B21 HP 480GB SATA 2.5in MU NHP SSD
$319
Manufacturer HPE
Manufacturer Part # 854520-B21
Memory Type SSD
Capacity 480GB
size 2.5 inch
SATA

The ST2000NM0055 (Enterprise Capacity 3.5 V.5) from Seagate is an enterprise-class 2TB 3.5-inch internal hard drive designed for high-density cloud storage, data centers, and enterprise bulk data applications. Operating at 7,200 RPM with a 128MB cache buffer, it leverages a SATA III (6Gbps) interface to deliver reliable, sequential data throughput for 24/7 mission-critical environments.
Engineered for heavy workloads, this drive features a native 512n sector format to ensure seamless backward compatibility with legacy enterprise systems and applications. It is built to handle a robust workload rating of 550TB per year and incorporates advanced rotational vibration tolerance technology to maintain consistent, stable performance when tightly packed inside multi-drive server racks.
The Toshiba AL13SE series of 2.5-inch 6 Gb/s SAS interface hard disk drives offer enterprise-class performance in capacities ranging from 900GB to 300GB.
The AL13SE is the first 10,000 RPM class model enterprise drive from Toshiba to achieve 900GB capacity and is also the first of Toshiba’s 10,000 RPM drives to employ a dual- stage head positioning actuator that provides additional performance gains, including a 32% increase in sustained transfer rate.

WD Scorpio Black 7200 RPM SATA 2.5-inch hard drives combine 7200 RPM spin speed, SATA 6.0 Gb/s interface, and 16 MB cache to deliver maximum performance for notebook computing.Confidence in knowing that all WD Scorpio Black drives are built to the highest standards of quality and reliability.

The Western Digital WD2500BHTZ is a high‑performance 250 GB internal hard disk drive from Western Digital’s legendary VelociRaptor family, engineered for users who need faster access and responsiveness than traditional 7200 RPM drives can provide. Unlike standard desktop HDDs, the VelociRaptor spins at a blistering 10 000 RPM and features a SATA III 6 Gb/s interface, allowing it to deliver sustained data throughput and quicker read/write access that benefits workstations, creative applications and performance‑oriented systems.
Whether installed in a desktop chassis or integrated into a high‑performance storage array, the delivers a notable combination of rotational speed, cache efficiency and sustained throughput that makes it a strong choice for applications where traditional HDDs fall short.
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