Western Digital Ultrastar DC HC550 16TB Hard Drive

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  • 16TB Storage Capacity
  • 3.5″ Form Factor
  • SATA III 6 Gb/s Interface
  • 512MB Cache
  • 7200 rpm
  • Up to 262 MB/s Data Transfer Speeds
  • 2.5 Million Hour MTBF
  • HelioSeal Technology
  • 600,000 Load/Unload Cycles
  • 0.35% Annualized Failure Rate (AFR)
  •  Delivery & Return

    🚚 Shipping and Risk:

    • Order Will Be Shipped Within 24-48 Working Hours After the Order is Processed.
    • Shipping Partners : Delhivery, XpressBees, Gati, BlueDart, Ecom Express (Depending on Availability at Your Pincode), Computech DOES NOT Have any Control over Operations of Shipping Partners.
    • Delivery dates are estimates Provided By Shipping Partners. Shipping Partners are solely responsible for any kind of Delays.
    • Loss or damage occured during shipping is Computech Responsibility.
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    • You must notify Computech of damaged or missing items from your order within 24-hours of receiving your package

    ♻️ Replacement and Refund Policy:

    • We accept replacement if product is defective or wrong product shipped no return or refund will be entertained.
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  Estimated Delivery: Jul 21 – Jul 25
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Original price was: ₹32,999.00.Current price is: ₹31,499.00.


Western Digital WD Ultrastar DC HC550 16TB SATA 6Gb/s 7200RPM 3.5-Inch Data Center HDD (WUH721816ALE6L4)

WD 16TB UltraStar DC HC550 7200 rpm SATA III 3.5" Internal HDD (OEM)

Total Cost of Ownership (TCO) Drives the Data Center Architecture

Data center decisions are driven by TCO. Higher capacity hard drives play a role in reducing TCO. Higher capacity HDDs enable data centers to lower CapEx by reducing supporting hardware- and system-level costs when compared to lower capacity drives. Helium-sealed, low power, high-reliability drives reduce energy and maintenance costs, contributing to OpEx savings. Higher capacity drives require fewer racks and consume less power per TB at idle, resulting in significant overall TCO reduction for data center environments.

Raising the Bar with Advanced Technologies

The WD Ultrastar DC HC550 integrates a suite of technologies on a 9-disk platform to create a new class of HDDs. It uses Energy-Assisted Magnetic Recording (EAMR) technology to improve writability and increase areal density, while a Triple Stage Actuator (TSA) enhances head-positioning accuracy, delivering better performance and increased areal density. Lastly, this drive uses HelioSeal technology, which is now in its 6th generation.
WD 16TB UltraStar DC HC550 7200 rpm SATA III 3.5" Internal HDD (OEM)

Trusted Reliability and Quality for Data at Scale

With its massive capacity and 2.5 million hour MTBF reliability rating, the UltraStar DC HC550 is made for object storage implementations. Object storage systems with erasure coding provide better data durability compared to RAID systems, given their tolerance for simultaneous error conditions. The DC HC550 offers security and encryption options to help protect data from unauthorized use, including SED models in both SATA and SAS. A SED-FIPS will be available in SAS configuration.

Driving Up Capacity and Driving Down TCO for Cloud and Hyperscale Data Centers

The breadth and depth of Big Data is driving the universal need for higher capacities across a broad spectrum of applications and workloads. Laying the foundation for a worry-free data center, Western Digital delivers the capacity to conquer the data explosion with the Ultrastar DC HC500 series of hard disk drives (HDDs). The DC HC500 series is designed for public and private cloud environments where storage density and cost-efficient infrastructure is critical.

The 16TB Ultrastar DC HC550 HDDs are the first commercial implementation of Energy-Assisted Magnetic Recording technology and utilize the industry’s first Triple Stage Actuator. These technologies, integrated with HelioSeal on a 9-disk platform, deliver the highest areal density and unmatched Total Cost of Ownership for customer and market needs.

Product Highlights

  • Up to 16TB capacity in a standard 3.5-inch form factor with 7200 RPM
  • CMR technology works with all capacity enterprise applications & environments
  • Industry’s first Energy-Assisted Magnetic Recording technology
  • Industry’s first Triple Stage Actuator
  • Leading HelioSeal technology
  • Reliable, field-proven design across five generations
  • HelioSeal design delivers outstanding power efficiency (Watts/TB)
  • 2.5 Million hours MTBF rating and a 5-year limited warranty

Applications and Workloads

  • Cloud & Hyperscale Storage
  • Massive Scale-Out (MSO), high-density data centers
  • Distributed File Systems
  • Bulk storage using Object storage solutions like Ceph™ and OpenStack Swift
  • Primary and secondary storage for Apache Hadoop® for Big Data Analytics
  • Surveillance Analytics

The Ultrastar DC HC550 16TB CMR HDD delivering industry leading capacity for the data center through a combination of new and proven technologies.

Western Digital is the first to deliver Energy-Assisted Magnetic Recording (EAMR) technology and a Triple Stage Actuator (TSA). These new technologies combined with further mechanical innovations and HelioSeal technology provide the industry’s highest capacities to enable data at scale with optimized TCO for data center architectures, while maintaining workload reliability and performance.

Device Type Hard drive – internal
Capacity 16 TB
Model Number WUH721816ALE6L4
Form Factor 3.5″
Interface SATA 6Gb/s
Buffer Size 512 MB
Features Rotational Vibration Safeguard (RVS), HelioSeal, Conventional magnetic recording (CMR), Media Cache Plus, Two-Dimensional Magnetic Recording (TDMR), Energy-Assisted Magnetic Recording (EAMR), Triple State Actuator (TSA)
Environmental Parameters
Min Operating Temperature 41 °F
Max Operating Temperature 140 °F
Min Storage Temperature -40 °F
Max Storage Temperature 158 °F
Shock Tolerance (operating) 50 g @ 2 ms half-sine wave
Shock Tolerance (non-operating) 250 g @ 2 ms half-sine wave
Vibration Tolerance (operating) 0.67 g @ 5-500 Hz
Vibration Tolerance (non-operating) 1.04 g @ 2-200 Hz
Width 4 in
Depth 5.8 in
Height 1 in
Weight 24.34 oz
Expansion & Connectivity
Interfaces 1 x SATA 6 Gb/s
Compatible Bay 3.5″
Drive Transfer Rate 600 MBps (external)
Internal Data Rate 262 MBps
Average Latency 4.16 ms
Spindle Speed 7200 rpm
MTBF 2,500,000 hours
24×7 Operation Yes
Non-Recoverable Errors 1 per 10^15
Load / Unload Cycles 6,00,000
Power Consumption 6.5 Watt (typical) ¦ 5.6 Watt (idle)
Manufacturer Warranty
Service & Support Limited warranty – 5 years
Weight 2 kg


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