WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD 0B47076

WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD 0B47076

Brand: Western Digital | Category: Enterprise HDDs

SKU: 0B47076 | Part #: 0B47076 | MPN: WUS721204BLE6L4

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About the WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD 0B47076

Western Digital's Ultrastar HA340 4TB (Part Number 0B47076) is a proven workhorse for enterprise storage environments across the GCC region and beyond. Built on proven CMR (Conventional Magnetic Recording) technology, this 3.5-inch SATA drive delivers sustained sequential read speeds up to 267 MB/s with a 7,200 RPM spindle and 256 MB cache buffer, making it ideal for mid-tier NAS systems, RAID arrays, and distributed backup infrastructure where reliability and cost-per-terabyte matter equally.

The HA340 4TB excels in mixed-workload deployments: build resilient 4-bay NAS clusters for SMB file services, configure RAID-5 or RAID-6 arrays for departmental storage consolidation, or scale multi-drive surveillance systems for enterprise campuses. With 2 million terabytes written (TBW) endurance rating and enterprise-class MTBF specifications, this drive is engineered for continuous operation in climate-controlled data closets and server rooms. The 4TB sweet spot balances capacity density with operational simplicity—no exotic enclosures required, native SATA 6Gb/s compatibility with standard controllers, and proven longevity in production environments across Asia, Europe, and the Middle East.

  • Sustained 267 MB/s throughput for sequential read-heavy workflows
  • 2M TBW endurance—built for continuous enterprise duty cycles
  • 256 MB cache + 7,200 RPM for responsive multi-user access patterns
  • Cost-efficient capacity tier for RAID-5/6 and NAS builds without premium pricing

Technical Specifications

BrandWestern Digital
CategoryEnterprise HDDs
SKU0B47076
Part Number0B47076
MPNWUS721204BLE6L4
ConditionNew
Capacity4 TB
Form Factor3.5"
InterfaceSATA 6Gb/s
Speed267 (sustained) MB/s Read
Capacity4TB
InterfaceSATA 6Gb/s
Form Factor3.5"
Sequential ReadUp to 267 (sustained) MB/s
Endurance (TBW)2 million
RPM7200
Cache256 MB
FeaturesCMR

Frequently Asked Questions about WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD 0B47076

What does the WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD do?

At 4 TB, the WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD suits enterprise data-center storage tiers — all-flash arrays, hyperconverged storage pools (vSAN, Ceph), database backends, and high-throughput backup repositories. The SATA 6Gb/s interface is supported by major server platforms.

What are the headline specs of the WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD?

Key specifications for the WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD: capacity 4 TB; form factor 3.5 Inch; interface SATA 6Gb/s; new condition; model WUS721204BLE6L4; part number 0B47076; capacity 4 TB; interface SATA 6Gb/s; form factor 3.5 Inch; sequential read speed Up to 267 (sustained) MB/s. Manufacturer part number 0B47076. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.

Is the WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD compatible with my infrastructure?

The WD Ultrastar HA340 4 TB 3.5 Inch SATA 6Gb/s Enterprise HDD uses a SATA 6Gb/s interface in a 3.5 Inch form factor. It's compatible with server platforms that expose this interface — typical deployments include Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, and Supermicro SuperServer chassis. For specific vendor part-number compatibility, our team validates against the manufacturer support matrix.