WD Ultrastar DC HA340 4TB 3.5-inch SATA 6Gb/s 7200 RPM Enterprise Hard Drive
Brand: Western Digital | Category: Enterprise HDDs
SKU: WUS721004ALE6L4 | Part #: WUS721004ALE6L4 | MPN: WUS721004ALE6L4
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About the WD Ultrastar DC HA340 4TB 3.5-inch SATA 6Gb/s 7200 RPM Enterprise Hard Drive
The WD Ultrastar DC HA340 4TB 3.5-inch enterprise hard drive delivers sustained 24×7 nearline and sequential workload performance, rated for 550TB per year with an MTBF of 2,500,000 hours. Built on Conventional Magnetic Recording (CMR) technology, this Western Digital drive combines proven reliability with the capacity and speed demands of modern data centers. With a 7200 RPM rotational speed, SATA 6Gb/s interface, and 256MB cache buffer, the Ultrastar DC HA340 balances throughput and responsiveness across mixed workload environments. The 512e sector size supports legacy and modern storage architectures without compatibility friction, while the rotational vibration sensor reduces mechanical noise and improves longevity in high-density rack configurations.
Storage architects and IT procurement teams standardize on the WD Ultrastar DC HA340 because it bridges the gap between nearline and general-purpose enterprise requirements. With 600,000 load/unload cycles and robust operating shock tolerance of 70G over 2ms, this drive withstands the thermal and mechanical stresses of continuous operation between 0°C and 60°C. Active power consumption of just 6.2W during read/write operations and 0.8W in standby mode helps organizations manage thermal load and energy budgets in large-scale deployments. The 3.5-inch form factor and compact 147mm depth fit standard 3.5-inch drive bays, while the 600g weight ensures compatibility with existing infrastructure. Western Digital's engineering focus on durability and predictable performance makes this drive ideal for surveillance, NAS systems, and multi-bay storage solutions that demand value without compromise.
Omnixon Global stocks the WD Ultrastar DC HA340 4TB (part number WUS721004ALE6L4) and supplies enterprise organizations across the UAE and Gulf region. Whether you are expanding nearline capacity, building redundant archive systems, or deploying bulk storage, our team can support your volume requirements and technical integration. Contact Omnixon Global to request a formal quotation and discuss configuration options for your deployment timeline.
Technical Specifications
| Brand | Western Digital |
| Category | Enterprise HDDs |
| SKU | WUS721004ALE6L4 |
| Part Number | WUS721004ALE6L4 |
| Condition | New |
| Product Line | Ultrastar DC HA340 |
| Manufacturer Part Number | WUS721004ALE6L4 |
| Capacity | 4TB |
| Form Factor | 3.5-inch |
| Interface | SATA 6Gb/s |
| Rotational Speed | 7200 RPM |
| Recording Technology | Conventional Magnetic Recording (CMR) |
| Sector Size | 512e |
| Cache (Buffer) | 256MB |
| Rated Workload | 550TB/yr |
| MTBF | 2,500,000 hours |
| Load/Unload Cycles | 600,000 |
| Operating Temperature | 0°C to 60°C |
| Power Consumption (Active, Read/Write) | 6.2W |
| Power Consumption (Standby) | 0.8W |
| Rotational Vibration Sensor | Yes |
| Dimensions (W × H × D) | 101.85mm × 26.1mm × 147mm |
| Weight | 600g (approximate) |
| Operating Shock | 70G, 2ms |
| Non-Operating Shock | 250G, 2ms |
| RoHS Compliant | Yes |
Frequently Asked Questions about WD Ultrastar DC HA340 4TB 3.5-inch SATA 6Gb/s 7200 RPM Enterprise Hard Drive
What workloads is the WD Ultrastar DC HA340 4TB 3.5-inch SATA 6Gb/s 7200 RPM Enterprise Hard Drive designed for?
Enterprise mixed-use and ri workloads — including transactional databases, AI inference data, virtualisation, hyperconverged storage, and analytics. Endurance is rated for sustained 24/7 operation, not consumer-style burst use.
Will this SSD work in my Dell / HPE / Lenovo server?
Most enterprise SSDs ship in vendor-branded variants tied to a server QVL. Share your server model and we will quote the correctly-branded SKU (Dell-genuine, HPE-genuine, Lenovo-genuine) so support and firmware update tooling work without complaints.
Do you provide support support locally?
Yes. All units are sourced through distribution, so support registers cleanly with the manufacturer (Samsung / Kioxia / Solidigm / Micron / WD / Seagate) and DOA replacement is handled through our Dubai operations within 5 business days for UAE/GCC.
How do I get a quote for a bulk order?
Use the RFQ form on this page with your quantity and destination. For larger and project-scale orders we engage the vendor directly to prepare a tailored quote, and our pre-sales team follows up with a vendor-confirmed quote.