Compare Western Digital Internal HDD
Comparing 5 products side-by-side — specifications, pricing and stock. Showing Western Digital products in the Internal HDD category.
| Specification | Current product Western Digital WD Purple WD85PURZ - Hard drive - 8 TB - internal - 3.5" - SATA 6Gb/s - 5640 rpm - buffer: 256 MBWD85PURZ £382.20 £458.64 inc VAT | Western Digital WD Gold WD142KRYZ - Hard drive - Enterprise - 14 TB - internal - 3.5" - SATA 6Gb/s - 7200 rpm - buffer: 512 MBWD142KRYZ £566.82 £680.18 inc VAT | |||
|---|---|---|---|---|---|
| General | |||||
| Buffer Size | — | 512 MB | 512 MB | 512 MB | — |
| Capacity | — | 18 TB | 18 TB | 16 TB | — |
| Depth | — | 147 mm | 147 mm | 147 mm | — |
| Device Type | — | Hard drive - internal | Hard drive - internal | Hard drive - internal | — |
| Features | — | Vibration dampening, HelioSeal, 24x7 continuous operation, advanced format 512e, Energy-Assisted Magnetic Recording (EAMR), Triple State Actuator (TSA) | 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) | 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) | — |
| Form Factor | — | 3.5" | 3.5" | 3.5" | — |
| Height | — | 26.1 mm | 26.1 mm | 26.1 mm | — |
| Interface | — | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | — |
| Weight | — | 690 g | 690 g | 690 g | — |
| Width | — | 101.6 mm | 101.6 mm | 101.6 mm | — |
| Power | |||||
| Power Consumption | — | 6.5 watt (active), 5.6 watt (idle) | 9.2 watt (typical), 5.7 watt (idle) | 6.4 watt (typical), 5.3 watt (idle) | — |
| Miscellaneous | |||||
| Compliant Standards | — | RoHS 2011/65/EU | BSMI, ICES-003, NMB-003, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB Scheme, TUV, UL, Directive 2015/863, EU Directive 2011/65/EU | BSMI, ICES-003, NMB-003, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB Scheme, TUV, UL, Directive 2015/863, EU Directive 2011/65/EU | — |
| Reliability | |||||
| 24x7 Operation | — | Yes | Yes | Yes | — |
| Load / Unload Cycles | — | — | 600,000 | 600,000 | — |
| MTBF | — | 2,500,000 hours | 2,500,000 hours | 2,500,000 hours | — |
| Non-Recoverable Errors | — | — | 1 per 10^15 | 1 per 10^15 | — |
| Performance | |||||
| Average Latency | — | 4.16 ms | 4.16 ms | 4.16 ms | — |
| Drive Class | — | — | Data Centre | Data Centre | — |
| Drive Transfer Rate | — | 600 MBps (external) | 1.2 GBps (external) | 600 MBps (external) | — |
| Internal Data Rate | — | 269 MBps | 269 MBps | 269 MBps | — |
| Spindle Speed | — | 7200 rpm | 7200 rpm | 7200 rpm | — |
| Connections & Expansion | |||||
| Compatible Bay | — | 3.5" | 3.5" | 3.5" | — |
| Interfaces | — | 1 x SATA 6 Gb/s | 1 x SATA 6 Gb/s | 1 x SATA 6 Gb/s | — |
| Environmental Parameters | |||||
| Max Operating Temperature | — | 60 °C | 60 °C | 60 °C | — |
| Max Storage Temperature | — | 70 °C | 70 °C | 70 °C | — |
| Min Operating Temperature | — | 5 °C | 5 °C | 5 °C | — |
| Min Storage Temperature | — | -40 °C | -40 °C | -40 °C | — |
| Shock Tolerance (non-operating) | — | 250 g @ 2 ms half-sine wave | 250 g @ half-sine wave | 250 g @ half-sine wave | — |
| Shock Tolerance (operating) | — | 50 g @ 2 ms half-sine wave | 50 g @ 2 ms half-sine wave | 50 g @ 2 ms half-sine wave | — |
| Sound Emission | — | — | 32 dBA | 32 dBA | — |
| Software / System Requirements | |||||
| OS Required | — | — | Microsoft Windows, Linux, Microsoft Windows Server | Microsoft Windows, Linux, Microsoft Windows Server | — |
| Manufacturer Warranty | |||||
| Service & Support | — | Limited warranty - 5 years | Limited warranty - 5 years | Limited warranty - 5 years | — |
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