WD Ultrastar DC HC555
Hard drive | Data Centre | 20 TB | internal | 3.5" | SATA 6Gb/s | 7200 rpm | buffer: 512 MB
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Main Specification
| Product Description | WD Ultrastar DC HC555 - hard drive - Data Centre - 20 TB - SATA 6Gb/s |
|---|---|
| Type | Hard drive - internal |
| Capacity | 20 TB |
| Form Factor | 3.5" |
| Interface | SATA 6Gb/s |
| Data Transfer Rate | 600 MBps |
| Buffer Size | 512 MB |
| Spindle Speed | 7200 rpm |
| Drive Class | Data Centre |
| Features | HelioSeal, 24x7 continuous operation, advanced format 512e, advanced format 4Kn, Dynamic fly height technology, Conventional magnetic recording (CMR), Triple State Actuator (TSA), Energy-assisted PMR (ePMR), Rotational Vibration (RV) sensor |
| Dimensions (WxDxH) | 101.6 mm x 147 mm x 26.1 mm |
| Weight | 690 g |
| Manufacturer Warranty | 5-year warranty |
General
| Device Type | Hard drive - internal |
|---|---|
| Capacity | 20 TB |
| Form Factor | 3.5" |
| Interface | SATA 6Gb/s |
| Buffer Size | 512 MB |
| Features | HelioSeal, 24x7 continuous operation, advanced format 512e, advanced format 4Kn, Dynamic fly height technology, Conventional magnetic recording (CMR), Triple State Actuator (TSA), Energy-assisted PMR (ePMR), Rotational Vibration (RV) sensor |
| Width | 101.6 mm |
| Depth | 147 mm |
| Height | 26.1 mm |
| Weight | 690 g |
Performance
| Drive Class | Data Centre |
|---|---|
| Drive Transfer Rate | 600 MBps (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 SATA 6 Gb/s |
|---|---|
| Compatible Bay | 3.5" |
Power
| Power Consumption | 6.4 watt (typical) 5.3 watt (idle) |
|---|
Software & System Requirements
| OS Required | Linux, Microsoft Windows Server, Microsoft Windows |
|---|
Miscellaneous
| Compliant Standards | UL, TUV, VCCI, BSMI, ICES-003, FCC, KC, RCM, Directive 2015/863, UKCA, CB Scheme, EU Directive 2011/65/EU, Maghreb, NMB-003 |
|---|
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 |
Product features
Durable temperature range
Operates efficiently in temperatures from 5°C to 60°C and can endure storage temperatures as low as -40°C, providing versatility in various environments.High reliability
With an MTBF of 2,500,000 hours and a non-recoverable error rate of 1 per 10^15, this drive is built for longevity and dependable performance in critical applications.Efficient power consumption
Features low idle power consumption of 5.3 watts, contributing to energy savings and more sustainable data handling in data centers.Advanced data technologies
Incorporates advanced format options, including 512e and 4Kn, as well as Energy-assisted PMR technology to optimize storage capacity and efficiency.Robust performance under stress
Designed with shock and vibration tolerance, capable of withstanding forces up to 250 g in non-operating conditions, ensuring data integrity even in challenging environments.Key selling points
- 20 TB capacity for extensive data storage
- 7200 rpm spindle speed for fast data access
- 24x7 continuous operation ensuring reliability
- Dynamic Fly Height technology for optimized performance
- Energy-efficient design with low power consumption
References
MPN: 0B48724
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04/06/2026 05:25:34