WUS721208BLE604 – 12TB 7200 RPM SATA 6Gb/s 3.5-Inch Ultrastar DC HC320 Enterprise Hard Drive

The Ultrastar DC HC320 (WUS721208BLE604) is Western Digital’s 12TB enterprise-capacity 3.5-inch hard drive, a stock item we supply in volume to resellers, system integrators and IT procurement teams building servers, storage arrays and scale-out infrastructure. Its 7200 RPM spindle and SATA 6 Gb/s interface make it a dependable choice for sustained-throughput workloads that exceed what NAS- or surveillance-grade drives are rated for. Units are sourced through authorized channels, and we ship batch-matched stock so multi-drive deployments arrive with consistent firmware and behavior across the entire order.

Key specifications (table)

Parameter	Specification
Model	WUS721208BLE604
Series	Ultrastar DC HC320 (Western Digital’s enterprise-capacity line)
Capacity	12 TB
Interface	SATA 6 Gb/s (bandwidth shared with the interface, not sustained transfer rate)
Form Factor	3.5-inch
Spindle Speed	7200 RPM (rotational-class; positioning differs from SSD-based tiers)
Cache (Buffer)	256 MB
MTBF	2.5 million hours (reliability rating, not a warranty term)
Workload Rating	Up to 550 TB/year (guidance for annualized workload; exceeding it may affect service life)
Advanced Format (AF)	4Kn / 512e (512e eases compatibility with legacy operating systems and applications)
Power Efficiency	Low active and idle power draw (relevant for dense-array power budgets)
Vibration Protection	Enhanced for multi-drive environments (RV compensation for rack and JBOD chassis)

Sourcing & Deployment Guidance for B2B Buyers

• Platform validation: verify SATA controller and backplane compatibility with Advanced Format 4Kn/512e sectoring before rollout; 512e mode provides the widest drop-in support across existing enterprise OS and RAID stacks.
• Batch consistency: for racks, JBODs and multi-bay builds, we recommend and can fulfill same-batch, same-model allocations to ensure uniform firmware and operational behavior; confirm 512e/4Kn alignment with your RAID controller requirements at time of order.
• Warranty & RMA: units carry the manufacturer’s enterprise warranty; our RMA desk handles claims, replacements and cross-ships with defined SLAs for wholesale customers.
• Compliance & export: shipments are CE-, FCC- and RoHS-certified and packed with full export documentation suitable for international delivery.
• Family positioning: the DC HC320 sits above NAS-oriented and surveillance-oriented lines, with a higher 550 TB/year annual workload rating and multi-drive vibration tolerance — a selling point worth communicating to your enterprise customers.

Stock levels for this model are refreshed continuously, and reserved inventory can be held against confirmed purchase orders. For current availability, batch dates and volume pricing, request a wholesale quote from our sales team.

Wholesale & Procurement Notes

• MOQ negotiable — flexible minimums for first-time and trial orders.
• Tiered volume pricing available; contact us to request a custom quote.
• Typical lead time: 3–7 business days for in-stock items; larger allocations quoted per order.
• Packing & shipping options: anti-static single packaging, bulk cartons, or padded palletized freight with tracking.
• RMA window: 30-day DOA/dead-on-arrival replacement, with manufacturer warranty and RMA processing supported thereafter.