WESTERN DIGITAL 3.5-inch internal hard drive for server ULTRASTAR-DC HC555 18TB 7200RPM-SAS DSP0000042285

Features of the Western Digital Ultrastar DC HC555 18TB SAS 512MB
The 18 TB Western Digital Ultrastar DC HC555 is a hard drive designed for professional environments and systems requiring high storage capacity, continuous operation and high reliability. Its SAS 3.0 interface, CMR technology and 7,200 rpm rotational speed make it a suitable solution for servers, data centres and storage platforms with demanding workloads.
18 TB capacity with CMR technology
With a capacity of 18 TB, this drive can store large volumes of data while maintaining predictable performance during intensive read and write operations. It uses CMR technology, designed for professional applications that require consistent, stable performance.

CAPACITY : 18 TB
Recording technology: CMR
Sector size: 512e
MODEL: 0B47747

SAS 3.0 interface and professional performance
The SAS 3.0 connection is designed for professional infrastructures where stability and continuous data access are priorities. The drive operates at 7,200 rpm, has 512 MB of cache memory and reaches a transfer rate of up to 269 MB/s.

Interface : 1 x SAS 3.0
Rotational speed: 7.200 rpm
Cache memory : 512 MB
Transfer speed: 269 MB/s
Access time: 4,16 ms

Designed for continuous 24-hour operation
The Ultrastar DC HC555 is designed for continuous 24-hour operation, a particularly important feature in servers and storage systems that must remain permanently available. Its MTBF of 2,500,000 hours reflects its suitability for environments where long-term reliability is an essential requirement.

Suitable for continuous 24-hour operation
MTBF: 2.500.000 h
Charge/discharge cycles : 600.000

Optimised energy consumption
The drive consumes 9.2 W during operation and 5.7 W in idle mode. These values provide a precise indication of its power requirements when integrating it into servers or systems with multiple storage drives.

Power consumption during operation : 9,2 W
Idle mode power consumption : 5,7 W

Ready for demanding work environments
Its temperature range and mechanical resistance allow it to be used in professional infrastructure with controlled operating conditions. It can operate between 5 °C and 60 °C and withstands impacts of up to 50 G during operation.

Operating temperature: 5 °C to 60 °C
Storage temperature: -40 °C to 70 °C
Shock resistance during operation : 50 G
Operating vibration resistance : 0,67 G

Noise level, dimensions and weight
The Western Digital Ultrastar DC HC555 records a noise level of 32 dB during operation and 20 dB when idle. Its dimensions make it easy to integrate into systems compatible with this drive form factor.

Operating noise level: 32 dB
Idle acoustic level: 20 dB
Dimensions: 147 x 101.6 x 26.1 mm
Weight: 690 g
Brand: Western Digital
Volume (m ³): 0.0015