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Description & Specifications
The Western Digital Ultrastar® DC HA340 6TB is a high-capacity enterprise hard drive engineered for reliability, endurance, and 24/7 operation. Built on CMR (Conventional Magnetic Recording) and air-based technology, this drive is optimized for read-intensive and capacity-driven environments where performance and consistency are critical.
Designed for use in cloud storage platforms, enterprise backup systems, and high-density server infrastructures, the 6TB model offers:
- Enterprise-class reliability with a projected 2 million-hour MTBF
- 550TB/year workload rating for consistent long-term use
- High power efficiency for reduced operational costs
- 7200 RPM performance with strong sustained throughput
With advanced vibration protection and a 5-year limited warranty, the 6TB HA340 is a dependable and cost-effective solution for enterprise-grade bulk data storage.
Specifications – 6TB Ultrastar DC HA340
| Attribute | Specification |
|---|---|
| Model Number | WUS721206BLE604 / WUS721206BLE6L4 |
| Form Factor | 3.5-inch |
| Recording Technology | CMR (Conventional Magnetic Recording) |
| Drive Technology | Air |
| Interface | SATA 6 Gb/s |
| Sector Format | 512e |
| Areal Density | 1022 Gbits/in² |
| RoHS Compliant | Yes |
| Data Cache | 256 MB |
| Rotational Speed | 7200 RPM |
| Average Latency | 4.16 ms |
| Internal Transfer Rate | 6 Gb/s (max) |
| Sustained Transfer Rate | 267 MB/s (max) / 255 MiB/s |
| Random Read / Write IOPS | 154 / 425 (4K, QD16) |
| MTBF | 2,000,000 hours (projected) |
| Annualized Failure Rate (AFR) | 0.44% |
| Load/Unload Cycles | 600,000 |
| Non-Recoverable Error Rate | <1 in 1015 bits read |
| Availability | 24x7 |
| Workload Rating | Up to 550TB/year |
| Warranty | 5 years |
| Power - Operating (Typical) | 8.0 W |
| Power - Idle | 6.7 W |
| Power Efficiency at Idle | 1.12 W/TB |
| Shock - Operating | 70G (2ms) |
| Shock - Non-Operating | 300G (2ms) |
| Temperature - Operating | 5°C to 60°C |
| Temperature - Non-Operating | -40°C to 70°C |
| Vibration - Operating | 0.67G RMS (5–500 Hz) |
| Vibration - Non-Operating | 1.04G RMS (2–200 Hz) |
| Acoustic (Idle / Operating) | 2.9 / 3.6 Bels |
| Dimensions (H x L x W) | 1.028 in x 5.787 in x 4.0 in (26.1 mm x 147 mm x 101.6 mm) |
| Weight | 1.58 lb (715 g) ±10% |
| Country of Assembly | Thailand |
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