0B47747 WD Ultrastar DC HC555 18TB SAS 512 MB 3.5" Server HDD

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Product line:

Ultrastar

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€803.56

In stock

Happyware Article Number:

SH7H4105-504557

Manufacturer Number:

0B47747

Brand:

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Description Technical details Warranty & Technical Support Reviews Bulk Deals

0B47747

High-Density 3.5in Datacenter SAS HDD for Capacity Storage featuring the 0B47747

The 0B47747 is a WD Ultrastar DC HC555 18TB 3.5in enterprise HDD engineered for always-on datacenter environments where predictable latency, sustained throughput, and RAID-friendly behavior are critical. Designed for capacity-tier platforms rather than compute acceleration, the 0B47747 integrates a 12Gb/s SAS interface to fit modern server backplanes and storage shelves while maintaining consistent integration across mixed-drive fleets.

Architecturally, the 0B47747 targets scale-out storage and dense JBOD/RAID designs where rebuild times, vibration tolerance, and controller interoperability determine operational stability. ePMR with TDMR supports high areal density for bulk datasets, while a 512MB cache and 7200RPM profile help sustain sequential performance for backup repositories and object/file nodes. 512e sector formatting provides broad compatibility with enterprise OS and RAID stacks, simplifying migration planning across legacy and 4Kn-aligned environments.

Why Choose the 0B47747?

The 0B47747 is optimized for maximizing terabytes per rack unit without sacrificing datacenter reliability, making it a practical standard drive for capacity nodes and shared storage pools. With a 24x7 duty cycle design, rotational vibration sensors, and a triple-stage actuator, the 0B47747 supports higher bay counts and predictable performance under multi-drive vibration, improving scalability for growing arrays.

WD engineers Ultrastar platforms for sustained enterprise duty cycles, focusing on mechanical stability, tight tolerance head positioning, and lifecycle consistency aligned with modern datacenter qualification processes and SAS infrastructure standards.

Key Applications:

Backup and restore repositories
Archive and bulk data lakes
Scale-out file and object storage
SDS and HCI capacity nodes
RAID arrays and JBOD expansion shelves

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and procurement model, and you can extend the warranty up to 6 years to align the 0B47747 deployment with your operational risk and lifecycle plans.

Technical details of 0B47747

Capacity:

18TB

Form Factor:

3.5"

Interface Speed:

SAS

Rotations:

7200RPM

Cache:

512 MB

Noise Level Operation:

20dB

Noise Level Idle:

20dB

How long is the Warranty and how you can get technical support for 0B47747

Warranty:	12 months (part)
RMA Url:	https://support-de.wd.com/app/rmastatus/
Description:	The item must be returned first for evaluation; if deemed defective, a replacement will be shipped. No guaranteed delivery times are offered