Western Digital Ultrastar DC HA340 12TB Enterprise SATA HDD
Western Digital Ultrastar DC HA340 12TB Enterprise SATA HDD
SKU:HAWD-0B47063
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Product Information
| Brand | Western Digital |
|---|---|
| Category | Hard Disk Drives - SATA |
| SKU | HAWD-0B47063 |
| Availability | Out of Stock |
Overview
- The Western Digital Ultrastar DC HA340 is a purpose-built enterprise SATA hard drive offering 12TB of storage capacity for demanding data centre applications. Engineered with CMR technology and a 7200 RPM spindle, it delivers consistent performance and reliability in 24/7 operating environments.
With 267MB/s transfer rates and 465 IOPS random write performance, this drive is optimised for mixed workload scenarios typical of enterprise storage systems. The 512MB cache buffer improves operational efficiency by reducing latency in read-heavy and write-heavy operations.
Backed by a comprehensive 5-year limited warranty, the Ultrastar DC HA340 provides cost-effective capacity and peace of mind for organisations building or expanding data centre infrastructure. The compact 3.5-inch form factor integrates seamlessly into standard server and storage enclosures.
Specifications
| Capacity | 12TB |
|---|---|
| Form Factor | 3.5-inch |
| Interface | SATA |
| Spindle Speed | 7200 RPM |
| Transfer Rate | up to 267MB/s |
| Random Read Performance | 150 IOPS |
| Random Write Performance | 465 IOPS |
| Cache Size | 512MB |
| Recording Technology | CMR |
| Physical Dimensions | 147mm (L) x 101.6mm (W) x 26.1mm (H) |
| Weight | 750g |
| Operating Temperature | 5°C to 60°C |
| Non-Operating Temperature | -40°C to 70°C |
| Warranty | 5-year limited warranty |
| Model Number | WUS721212BLE6L4 |
Key Features
Ideal For
FAQs
Is the Western Digital Ultrastar DC HA340 suitable for 24/7 operation?
Yes. The Ultrastar DC HA340 is purpose-built for continuous data centre environments and is rated for 24/7 operation. The extended operating temperature range (5°C to 60°C) supports controlled server room conditions.
What is the difference between CMR and SMR recording technology?
The Ultrastar DC HA340 uses CMR (Conventional Magnetic Recording), which overwrites one track at a time and is optimised for high random write performance. CMR is preferred for enterprise workloads requiring consistent IOPS performance.
How much data can I store on a 12TB Ultrastar drive?
The 12TB capacity provides approximately 12 trillion bytes of usable storage. Actual usable capacity depends on file system overhead and formatting; most systems report approximately 10.7–11TB available.
What is the warranty coverage for this drive?
The Western Digital Ultrastar DC HA340 is backed by a 5-year limited warranty, which covers defects in materials and workmanship. Hyetech Australia provides full support and warranty administration for Australian customers.
What is the transfer rate performance of this drive?
The Ultrastar DC HA340 delivers sustained transfer rates of up to 267MB/s, making it suitable for sequential data operations common in backup, archival, and video streaming applications.
Can I use this drive in a NAS system?
Yes. The 3.5-inch SATA form factor and enterprise-grade reliability make the Ultrastar DC HA340 compatible with many NAS and storage systems, though you should verify your specific system's compatibility before purchase.
What is the cache size, and why does it matter?
The drive includes 512MB of cache memory, which buffers frequently accessed data and improves performance during mixed read/write workloads. Larger cache typically reduces latency and improves responsiveness.
