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Silver 2.5 inch bare drive with SAS connector

HGST

HGST 0B25095 450GB 10000 RPM SAS 6Gb/s 2.5" laptop hard drive

SKU CH-0KX8-22Y48 MPN 0B25095

Enterprise 2.5" SAS drive delivers 450 GB at 10,000 RPM with 64 MB cache and 3.7 ms seek time

  • PackagingBare Drive
  • InterfaceSAS 6Gb/s
  • Capacity450GB
  • Cache64MB
  • Average Seek Time3.7ms
  • Average Latency3ms
  • 10,000 RPM enables low-latency data access
  • 64MB cache buffer manages data efficiently
  • SAS 6Gb/s dual-port interface provides enhanced reliability
  • Advanced power management reduces enterprise power requirements
  • Rotational Vibration Safeguard maintains performance in multi-drive systems

Enterprise storage drive

The HGST Ultrastar 0B25095 is a 450GB 2.5-inch laptop internal hard drive spinning at 10000 RPM with a SAS 6Gb/s interface. It delivers enterprise-class performance in a compact form factor with 64MB cache and advanced power management for lower power requirements. The bare drive includes Rotational Vibration Safeguard and workload detector technology for multi-drive environments.

Transactional workloads and RAID arrays

This drive suits administrators deploying high-IOPS storage for databases, virtualisation hosts or transactional applications where low latency matters. The dual-port SAS interface provides path redundancy for enhanced reliability in enterprise arrays. Buyers needing larger capacity for archival storage or sequential throughput should consider higher-capacity alternatives.

10000 RPM spindle speed

The 10000 RPM rotation rate determines the drive's average seek time of 3.7ms and average latency of 3ms, which directly govern random I/O performance. This specification decides whether the drive meets the response-time requirements of your workload. If your application prioritises capacity over latency, a different spindle speed may be more appropriate.

Highlights

  • 10,000 RPM enables low-latency data access
  • 64MB cache buffer manages data efficiently
  • SAS 6Gb/s dual-port interface provides enhanced reliability
  • Advanced power management reduces enterprise power requirements
  • Rotational Vibration Safeguard maintains performance in multi-drive systems

Specifications

BrandHGST
SeriesUltrastar
Model0B25095
PackagingBare Drive
InterfaceSAS 6Gb/s
Capacity450GB
Cache64MB
Average Seek Time3.7ms
Average Latency3ms
RPM10000 RPM
FeaturesAdvanced power management - Cool enterprise SAS with lower power requirements
More capacity for less space and configuration flexibility
SAS 6Gb/s dual port - Fastest interface for enhanced reliability
10,000 RPM - Low latency for faster access to data
64MB cache buffer - Manages data efficiently
Rotational Vibration Safeguard (RVS) - Maintains drive performance in high rotational vibration environments and multi-drive systems
Workload detector technology - Maximizes performance in RAID environments
Iterative decode - Improves signal processing
End-to-end data protection (ANSI) witho
Form Factor2.5"
Shipping weight0.20 kg
Package size114 × 70 × 13 mm

Questions about this item

What limits the HGST Ultrastar 0B25095 during sustained 10000 RPM operation?

The 3.7 ms average seek time and 3 ms average latency set the mechanical response floor for continuous workloads.

How much heat and noise does the 2.5 inch SAS drive produce when running all day?

Advanced power management lowers power draw, while Rotational Vibration Safeguard keeps acoustics stable in multi-drive systems.

Which controller or backplane must I already have for this 450GB SAS drive to work?

A SAS 6Gb/s dual-port host bus adapter or RAID controller with a 2.5 inch drive bay is required.

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