Western Digital
Western Digital Ultrastar 0B47076 internal hard drive 4 TB 7200 RPM 256 MB 3.5" Serial ATA
Western Digital Ultrastar 0B47076 internal hard drive 4 TB 7200 RPM 256 MB 3.5" Serial ATA
SKU:0B47076
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Delivery & lead times
Delivery & lead times
Some products ship directly from our suppliers and can have longer lead times than stock held in the UK. If you need a delivery date, please contact us before ordering. See our shipping policy.
Buying 5 or more? Volume pricing
Buying 5 or more? Volume pricing
We offer volume pricing, business accounts and quotations for organisations. Request a quote or call 01344 963637.
Returns & warranty
Returns & warranty
See our refund policy. Manufacturer warranty terms vary by product - contact us if you need warranty details before you buy.
- Ultrastar DC HA340 drives extend Western Digital's long-standing tradition of reliability leadership with a 2.0M-hour MTBF failure rating (projected) and a 5-year limited warranty.
- Capacity points support both OEM and cloud deployments as well as traditional IT systems.
- Performance-optimized to handle heavy application workloads up to 550TB per year
Economical Capacities and Fast Data Access for the Data Center
The Ultrastar® DC HA340 HDD in 4TB, 6TB, and 8TB delivers efficiency and performance for traditional and legacy systems based on proven CMR technology. Designed for a variety of applications including traditional storage arrays, rack-mounted storage enclosures and server-based storage systems, these drives are offered at 7,200 RPM with 6Gb/s SATA and Advanced Format 512e format.
Technology innovation delivers efficiency and performance for legacy systems
Address data center requirements by providing legacy capacities from 4TB to 8TB while implementing the latest in HDD storage technologies.
Proven and cost-efficient design
Ultrastar DC HA340 drives are based on an air-based HDD platform with Conventional Magnetic Recording (CMR) technology in a 3.5-inch form factor.
Performance and protection
These 4TB, 6TB, and 8TB HDD’s leverage a dual-stage microactuator to enhance head positioning accuracy for better drive performance.
Designed for data center workloads
The Ultrastar DC HA340 is performance-optimized to handle heavy application workloads of up to 550TB2 per year.
Built with reliability in mind
This robust drive delivers dependability in intense data center environments with up to 2M hours MTBF3 (projected).
Quality and security
Provides additional peace of mind with a 5-year limited warranty.
| Features | |
|---|---|
| HDD size | 3.5" |
| HDD capacity | 4 TB |
| HDD speed | 7200 RPM |
| Interface | Serial ATA |
| Type | HDD |
| Storage drive buffer size | 256 MB |
| HDD interface transfer rate | 6 Gbit/s |
| HDD sustained transfer rate | 255 MiB/s |
| Average latency | 4.16 ms |
| Uncorrectable Bit Error Rate (UBER) | < 1 per 10^15 bits read |
| Advanced Format (AF) | Yes |
| 24/7 operation | Yes |
| Start/stop cycles | 600000 |
| Workload rate limit | 550 TB/year |
| Mean time between failures (MTBF) | 2000000 h |
| Windows operating systems supported | Yes |
| Linux operating systems supported | Yes |
| Power | |
|---|---|
| Power consumption (typical) | 7 W |
| Power consumption (idle) | 5.8 W |
| general_information_attribute_container_name | |
|---|---|
| attribute_product_family_name | Ultrastar |
| Operational conditions | |
|---|---|
| Operating temperature (T-T) | 5 - 60 °C |
| Storage temperature (T-T) | -40 - 70 °C |
| Operating vibration | 0.67 G |
| Non-operating vibration | 1.04 G |
| Operating shock | 70 G |
| Non-operating shock | 300 G |
| Weight & dimensions | |
|---|---|
| Width | 101.6 mm |
| Depth | 26.1 mm |
| Height | 147 mm |
| Weight | 715 g |
| Packaging data | |
|---|---|
| Quantity per pack | 1 pc(s) |
