Western Digital Ultrastar C10K1800 900GB SAS Enterprise HDD — main product image

Western Digital Ultrastar C10K1800 900GB SAS Enterprise HDD

Western Digital Ultrastar C10K1800 900GB SAS Enterprise HDD

Name: Western Digital Ultrastar C10K1800 900GB SAS Enterprise HDD
Brand: Western Digital
SKU: 0B29919

★★★★★5.0 (2 reviews)

Enterprise-grade 10,000 RPM SAS drive delivering 900GB of reliable, high-performance storage for 24/7 data center workloads.

$272.12*

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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Western Digital (HGST) Ultrastar C10K1800 is an enterprise-class 2.5-inch hard drive engineered for mission-critical environments where uptime and performance are non-negotiable. Spinning at 10,000 RPM with a 128MB cache and a SAS 12Gb/s interface, it delivers the low-latency, high-throughput performance that transactional databases, virtualized environments, and high-demand application servers require. The 900GB capacity provides a practical balance between storage density and the performance advantages of a smaller, faster-spinning platter design.

Designed for 24/7 operation, this drive incorporates the reliability engineering that HGST's Ultrastar line is known for in the data center space. The 4K native (4KN) sector format aligns with modern storage infrastructure, while the Instant Secure Erase (ISE) feature enables rapid, cryptographically secure data sanitization — a critical capability for organizations with strict data handling and compliance requirements. It fits standard 2.5-inch server bays, supporting high-density deployments where multiple drives can be packed into a single chassis for large storage arrays.

Key Features

10K RPM

SAS 12Gb/s

Media cache architecture

Rotational Vibration Safeuard (RVS)

Workload detector technology

Specifications

Brand

Western Digital (HGST)

Model

0B29919

Capacity

900GB

Rotational Speed

10,000 RPM

Interface

SAS 12Gb/s

Cache

128MB

Form Factor

2.5-Inch

Technology

ULTRA 4KN ISE

Pros & Cons

👍 Pros

10,000 RPM speed delivers lower latency than standard enterprise drives
SAS 12Gb/s interface provides high throughput for server environments
128MB cache helps smooth performance during burst operations
Built for 24/7 reliability in demanding data center conditions
Instant Secure Erase simplifies secure decommissioning

👎 Cons

900GB capacity is modest compared to modern high-capacity HDDs and SSDs
SAS interface requires a compatible controller and is not usable in standard consumer PCs
Mechanical drive performance cannot match the speed of enterprise SSDs
Higher power draw and heat output than equivalent-capacity solid-state alternatives

Frequently Asked Questions

What interface does this drive use?

It uses a SAS 12Gb/s interface, which is standard for enterprise servers and storage arrays but is not compatible with consumer SATA connections.

Is this drive designed for continuous operation?

Yes, the Ultrastar C10K1800 is rated for 24x7 operation in demanding enterprise environments with heavy read/write workloads.

What does "4KN ISE" mean in the specifications?

4KN refers to the 4K native sector format, and ISE stands for Instant Secure Erase, which allows the drive to be securely wiped quickly when decommissioned.

What is the form factor of this drive?

It is a 2.5-inch form factor drive, making it suitable for high-density server and storage enclosure configurations.

What is the rotational speed and why does it matter?

The drive spins at 10,000 RPM, which provides faster data access and lower latency compared to standard 7,200 RPM drives, important for transactional and performance-sensitive workloads.