WD Ultrastar DC HC555
Hard drive | Data Centre | 20 TB | internal | 3.5" | SAS 12Gb/s | 7200 rpm | buffer: 512 MB
Images for illustration purposes only, actual product may differ
MPN
0B47749
Manufacturer
Western Digital
QuickCode
1750307
Qty immediately available
30
Total stock
92
RRP: £1,686.37 inc VAT
£1,363.61
inc VAT
£1,136.34 ex
VAT
Save
19%
Quantity in Cart:
We are an Authorised Diamond Partner
All products come in brand new original packaging.
Delivery
Order by 4:30pm UK Time
(excluding weekends and Bank Holidays) for UK Mainland next working day delivery.
Shipping rates applicable only to UK Mainland Addresses and exclude Northern Ireland, Eire, Scottish Offshore, Scottish Highlands, Channel Islands and Isle of Man.
7 Working Days£0.00
Within 1 week (UK Mainland), free if order over £100 + VAT
3 Working Days£4.98
3 working days (UK Mainland)
Next Working Day£7.97
Next working day (UK Mainland)
Main Specification
| 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 | 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 | SAS 12Gb/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 | 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 | 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
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.Key selling points
- 20 TB capacity for expansive data storage
- 1.2 GBps data transfer rate for efficient performance
- 24x7 continuous operation capabilities
- Advanced features for enhanced reliability
- Wide operating temperature range for versatile environments
References
MPN: 0B47749
What our Customers think about us!
Page generated at:
13/10/2026 19:11:35