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Overview

Range/Series Overview


IMPORTANT: This Range/Series overview section describes the range of which this product belongs. Features of different versions might be mentioned and may not apply to the specific product on this page. Please view Specs for specification of product.

The WD Ultrastar DC HC555 is engineered for high-capacity data center applications, providing a substantial 20 TB of storage for demanding operational needs. With a spindle speed of 7200 rpm and a data transfer rate of 1.2 GBps, it ensures efficient data handling. This hard drive features advanced technology such as Dynamic fly height technology and Triple State Actuator (TSA) to optimize performance and reliability. Operating at sound levels of just 32 dBA, it preserves a quieter environment for data-sensitive operations. Designed for continuous function, the drive supports 24x7 operation and has a MTBF of 2,500,000 hours, making it a dependable choice for mission-critical applications.

The WD Ultrastar DC HC555's environmentally resilient design allows it to operate within a wide temperature range, from 5°C to 60°C. Its HelioSeal technology contributes to durability and better load/unload cycles, rated at 600,000. Adhering to multiple compliance standards, including UL and TUV, ensures that this drive meets safety and environmental regulations. Equipped with a buffer size of 512 MB and utilizing Serial Attached SCSI 3 interface, this internal hard drive is poised to handle the demands of modern data environments.


Features Summary

  • Robust capacity
    The drive offers 20 TB of storage, allowing extensive data management for data-intensive tasks.
  • High-speed performance
    With a data transfer rate of 1.2 GBps, it significantly enhances data retrieval and operation times.
  • Advanced durability
    Designed for 24x7 operation with a MTBF of 2,500,000 hours, ensuring reliability for continuous use.
  • Environmental resilience
    It operates within a temperature range of 5°C to 60°C, supporting deployment in diverse settings.
  • Efficient data handling
    Features such as Dynamic fly height technology and Triple State Actuator (TSA) optimize performance and minimize errors.

Specification Summary

Product Description
WD Ultrastar DC HC555 - hard drive - Data Centre - 20 TB - SAS 12Gb/s
Type
Hard drive - internal
Capacity
20 TB
Form Factor
3.5"
Interface
SAS 12Gb/s
Data Transfer Rate
1.2 GBps
Buffer Size
512 MB
Spindle Speed
7200 rpm
Drive Class
Data Centre
Features
Advanced format 512e, advanced format 4Kn, 24x7 continuous operation, Triple State Actuator (TSA), Dynamic fly height technology, HelioSeal, Rotational Vibration (RV) sensor, Conventional magnetic recording (CMR), Energy-assisted PMR (ePMR)
Dimensions (WxDxH)
101.6 mm x 147 mm x 26.1 mm
Weight
690 g
Manufacturer Warranty
5-year warranty

Specifications

EAN / GTIN:
829686009363
General
Device Type
Hard drive - internal
Capacity
20 TB
Form Factor
3.5"
Interface
SAS 12Gb/s
Buffer Size
512 MB
Features
Advanced format 512e, advanced format 4Kn, 24x7 continuous operation, Triple State Actuator (TSA), Dynamic fly height technology, HelioSeal, Rotational Vibration (RV) sensor, Conventional magnetic recording (CMR), Energy-assisted PMR (ePMR)
Width
101.6 mm
Depth
147 mm
Height
26.1 mm
Weight
690 g
Performance
Drive Class
Data Centre
Drive Transfer Rate
1.2 GBps (external)
Internal Data Rate
285 MBps
Average Latency
4.16 ms
Spindle Speed
7200 rpm
Reliability
MTBF
2,500,000 hours
24x7 Operation
Yes
Non-Recoverable Errors
1 per 10^15
Load / Unload Cycles
600,000
Expansion & Connectivity
Interfaces
1 x SAS 12 Gb/s
Compatible Bay
3.5"
Power
Power Consumption
9.2 Watt (typical) ¦ 5.7 Watt (idle)
Software & System Requirements
OS Required
Microsoft Windows, Linux, Microsoft Windows Server
Miscellaneous
Compliant Standards
BSMI, ICES-003, NMB-003, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB Scheme, TUV, UL, Directive 2015/863, EU Directive 2011/65/EU
Manufacturer Warranty
Service & Support
Limited warranty - 5 years
Environmental Parameters
Min Operating Temperature
5 °C
Max Operating Temperature
60 °C
Min Storage Temperature
-40 °C
Max Storage Temperature
70 °C
Shock Tolerance (operating)
50 g @ 2 ms half-sine wave
Shock Tolerance (non-operating)
250 g @ half-sine wave
Vibration Tolerance (operating)
0.67 g @ 5-500 Hz
Vibration Tolerance (non-operating)
1.04 g @ 2-200 Hz
Sound Emission
32 dBA

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