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WD HC550 16TB Enterprise HDD SATA 6Gb/s 7200RPM 3.5-inch
High-Capacity, High-Reliability SATA Hard Drive for Enterprise NAS, Servers, and Data Centers | HelioSeal Technology | 512 MB Cache | Bulk Packaging Available
$570.00
Out of stock
Product Overview
YUNLINK is proud to offer the Western Digital HC550 16TB Enterprise-class Hard Drive (Model: WUH721816ALE6L4). Engineered for 24/7 operation, this drive is built to deliver uncompromising performance and exceptional reliability for demanding storage environments. Featuring WD's proprietary HelioSeal technology, a massive 512MB cache, and a 7200 RPM spindle speed, the HC550 series is the ideal solution for capacity-optimized enterprise storage systems, NAS appliances, and cloud data centers.
As your trusted IT equipment partner, YUNLINK ensures direct sourcing of genuine components, providing you with competitive pricing, stable supply, and expert support for your infrastructure projects.
Key Features & Benefits
Massive 16TB Capacity: Store more data per drive to maximize rack space efficiency and reduce total cost of ownership (TCO) in large-scale deployments.
Enterprise-Grade Reliability: Designed and tested for 24/7/365 operation with an annual workload rating of up to 550 TB/year and a 2.5M hours MTBF, ensuring long-term stability for critical data.
HelioSeal Technology: WD's innovative helium-sealed design reduces internal friction and power consumption, allowing for higher areal density and improved thermal efficiency.
Consistent Performance: Features a 7200 RPM spindle speed, 512MB cache, and a SATA 6Gb/s interface for balanced and sustained read/write performance suitable for sequential workloads.
Advanced Data Integrity: Equipped with OptiNAND™ technology, which integrates a flash chip on the drive PCB to improve metadata handling, enabling faster access times and enhanced reliability.
Detailed Specifications
Presenting the key technical data for your evaluation:
Specification Category | Details |
|---|---|
Model Number | WUH721816ALE6L4 |
Series | WD Ultrastar® DC HC550 |
Formatted Capacity | 16 TB |
Interface | SATA 6 Gb/s |
Form Factor | 3.5-inch |
Spindle Speed | 7200 RPM |
Cache Size | 512 MB |
Annual Workload Rate | Up to 550 TB/year |
Mean Time Between Failures (MTBF) | 2.5 Million Hours |
Advanced Features | HelioSeal™ Technology, OptiNAND™, Vibration Protection |
Warranty | 5-Year Limited Warranty |
Why Choose This Drive?
For Scale-Out Storage: Perfect for hyperscale environments, object storage, and distributed file systems where capacity density is key.
For Business NAS: An excellent choice for multi-bay NAS systems (e.g., Synology, QNAP) used for backup, archiving, and shared network storage.
For Data Center Deployment: Its high reliability and power efficiency make it suitable for bulk storage in servers and JBOD arrays.
Why Buy from YUNLINK?
At YUNLINK CO., LIMITED, we are specialists in enterprise IT infrastructure. When you purchase from us, you gain more than just a product:
Authenticity Guaranteed: We source directly from authorized channels, ensuring you receive genuine Western Digital components.
Stock Availability: We maintain strategic inventory to support your project timelines and urgent needs.
Expert Support: Our team can assist with compatibility checks and integration guidance for your specific server or storage solution.
Competitive Value: Our efficient supply chain allows us to offer enterprise-grade hardware at market-competitive prices.
Warranty
Limited Warranty: 1 Year
Company Profile
YUNLINK CO., LIMITED. Your Direct Link to Enterprise IT Excellence.
We connect you directly to top-tier infrastructure—from rack servers and switches to enterprise routers and SSDs. Leverage our sourcing power and cost-effective inventory to build a network that drives your business forward.
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Packaging & Shipping
We can Packaging according to the customer's requirements and different regions. Packaging uses cartons/pallets/wooden frames/wooden cases.
Our The main shipping methods include: express delivery (fedex /UPS/DHL), truck delivery, air freight and sea freight.
Our main delivery methods are: EXF/FOB/FCA/CIF/DDP.



