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Time Saver Western Digital Ultrastar Dc Hc550 Internal Hard Drive 18 Tb 7200 Rpm 512 Mb 3.5" Serial Ata Iii Massive 40% Savings [STOk3eBb]

$55.99 $179.99 -69%

Ultrastar DC HC500 SeriesHigh Capacity for Massive Data and Lower Total Cost of OwnershipDriving Up Capacity and Driving Down TCO for Cloud and Hyperscale Data CentersThe breadth and depth of Big Data is driving the universal need for higher capaciti

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Time Saver Western Digital Ultrastar Dc Hc550 Internal Hard Drive 18 Tb 7200 Rpm 512 Mb 3.5" Serial Ata Iii Massive 40% Savings [STOk3eBb]

Ultrastar DC HC500 Series

High Capacity for Massive Data and Lower Total Cost of Ownership

Driving Up Capacity and Driving Down TCO for Cloud and Hyperscale Data Centers

The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard disk drives (HDDs). The DC HC500 series is designed for public and private cloud environments where storage density and cost-efficient infrastructure is critical.

The 18TB/16TB Ultrastar DC HC550 HDDs are the first commercial implementation of Energy-Assisted Magnetic Recording technology and utilize the industry’s first Triple Stage Actuator. These technologies, integrated with HelioSeal on a 9-disk platform, deliver the highest areal density and unmatched Total Cost of Ownership for customer and market needs.

Solves TCO Challenges
- High Capacity
Up to 18TB HDDs, drop-in ready for Big Data workloads
- Low Power
Up to 61% lower idle W/TB than 10TB Ultrastar air-filled drives
- More Reliable
25% higher MTBF rating than air-filled HDDs

Continuous Innovation for Highest Capacities and Lower TCO

The Ultrastar DC HC550 18TB CMR HDD and Ultrastar DC HC650 20TB SMR HDD are delivering industry leading capacity for the data center through a combination of new and proven technologies.

Western Digital is the first to deliver Energy-Assisted Magnetic Recording (EAMR) technology and a Triple Stage Actuator (TSA). These new technologies combined with further mechanical innovations and HelioSeal technology provide the industry’s highest capacities to enable data at scale with optimized TCO for data center architectures, while maintaining workload reliability and performance.

Features
Mean time between failures (MTBF) 2500000 h
Noise level (idle) 2 dB
Workload rate limit 550 TB/year
Start/stop cycles 600000
24/7 operation Yes
Average latency 4.16 ms
HDD interface transfer rate 6 Gbit/s
Storage drive buffer size 512 MB
Component for Server/workstation
Type HDD
Interface Serial ATA III
HDD size 3.5"
HDD speed 7200 RPM
HDD capacity 18 TB
Power
Operating voltage 5 / 12 V
Power consumption (read) 8.8 W
Power consumption (write) 8.8 W
Power consumption (idle) 5.8 W
Operational conditions
Non-operating shock 250 G
Operating shock 50 G
Non-operating vibration 1.04 G
Operating vibration 0.67 G
Storage temperature (T-T) -40 - 70 °C
Operating temperature (T-T) 5 - 60 °C
General
Product family Ultrastar
Packaging content
Manual Yes
Weight & dimensions
Weight 690 g
Height 26.1 mm
Depth 147 mm
Width 101.6 mm
Packaging data
Quantity per pack 1 pc(s)
Logistics data
Harmonized System (HS) code 84717050

What Our Customers Say

January 28, 2026

Absolutely no complaints!

It's a very nice product, for sure and for certain.

- Rhodri R..

January 28, 2026

Absolutely no complaints!

This is a very smart and a very, very efficient tool.

- Bethan N..

January 28, 2026

Absolutely no complaints!

This is a fantastic and a very, very useful product.

- Iona X..

Write a Review

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