WD Ultrastar DC HC520 HUH721212AL5204
Hard drive | 12 TB | internal | 3.5" | SAS 12Gb/s | 7200 rpm | buffer: 256 MB
MPN
0F29532
Manufacturer
Western Digital
QuickCode
1500562
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RRP: £734.03 inc VAT
£446.24
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£371.87 ex
VAT
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Main Specification
| Product Description | WD Ultrastar DC HC520 HUH721212AL5204 - hard drive - 12 TB - SAS 12Gb/s |
|---|---|
| Type | Hard drive - internal |
| Capacity | 12 TB |
| Form Factor | 3.5" |
| Interface | SAS 12Gb/s |
| Data Transfer Rate | 1.2 GBps |
| Buffer Size | 256 MB |
| Spindle Speed | 7200 rpm |
| Features | Perpendicular Magnetic Recording (PMR), Secure Erase function, Enterprise, 24x7 availability |
| Dimensions (WxDxH) | 101.6 mm x 147 mm x 26.1 mm |
| Weight | 660 g |
| Manufacturer Warranty | 5-year warranty |
General
| Device Type | Hard drive - internal |
|---|---|
| Capacity | 12 TB |
| Form Factor | 3.5" |
| Interface | SAS 12Gb/s |
| Buffer Size | 256 MB |
| Bytes per Sector | 512 |
| Features | Perpendicular Magnetic Recording (PMR), Secure Erase function, Enterprise, 24x7 availability |
| Width | 101.6 mm |
| Depth | 147 mm |
| Height | 26.1 mm |
| Weight | 660 g |
Performance
| Drive Transfer Rate | 1.2 GBps (external) |
|---|---|
| Seek Time | 8 ms (average) |
| 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 | 9.8 watt (active) 6.1 watt (idle) |
|---|
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) | 70 g @ 2 ms half-sine wave |
| Shock Tolerance (non-operating) | 300 g @ 2 ms half-sine wave |
| Vibration Tolerance (operating) | 0.67 g @ 5-500 Hz |
| Vibration Tolerance (non-operating) | 1.04 g @ 2-200 Hz |
Product features
HelioSeal Technology helps solve challenges facing next generation data centers
Data centers are facing growing pressures. Data volume is expanding, operating costs are rising, yet budgets remain flat. Datacenter ready features like a second generation dual-stage actuator - the Western Digital Micro Actuator - enhance head-positioning accuracy to deliver better performance, data integrity and overall drive reliability, especially in multi-drive environments where operational vibration is present.Data durability and data security to support compliance and privacy requirements
As drive capacity grows beyond single-digit TBs, object storage systems with erasure coding provide better data durability compared to RAID systems, given its tolerance for simultaneous error conditions. Compliance and privacy requirements drive the need for increased data security. The Ultrastar DC HC520 offers security and encryption options to help protect data from unauthorized use, including TCG SAS models.Key selling points
- Reliable, field-proven design
- Ready for capacity-optimized workloads
- Lower power consumption
References
MPN: 0F29532
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