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Western Digital 0B35914-20PK 12TB Ultrastar DC HC520 HDD 20-Pack View larger

Western Digital 0B35914-20PK 12TB Ultrastar DC HC520 HDD 20-Pack

0B35914-20PK

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Western Digital 12TB Ultrastar DC HC520 SATA 20-Pack.

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Detailed Specifications

Western Digital 0B35914-20PK Ultrastar DC HC520 12TB 7200 RPM SATA 6Gb/s Enterprise 20-Pack

Overview

The Western Digital 0B35914-20PK is a bulk 20-pack of Ultrastar DC HC520 enterprise-class hard drives, engineered specifically for high-density data center environments. Utilizing HelioSeal technology, these 12TB drives offer superior power efficiency and reliability by reducing internal air turbulence. As part of the DC HC520 series, they are designed to handle rigorous 24/7 workloads of up to 550TB per year. These drives are ideal for enterprise storage arrays, cloud computing, and massive scale-out architectures where TCO (Total Cost of Ownership) and storage density are critical factors. The SATA 6Gb/s interface ensures seamless integration into existing server infrastructures while providing consistent performance for heavy sequential and random workloads.

Key Features :

  • HelioSeal Technology: Fourth-generation helium-filled design for efficiency.

  • 24/7 Enterprise Reliability: Rated for 2.5M hours MTBF.

  • High Workload Rating: Supports up to 550TB per year workloads.

  • Optimized TCO: Low power-to-capacity ratio for data centers.

  • Bulk 20-Pack: Strategic procurement packaging for large deployments.

Technical Specifications :

Attribute Specification
Brand Western Digital
Part Number 0B35914-20PK
Product Type Enterprise Internal Hard Drive (20-Pack)
Capacity 12 TB (Per Drive)
Interface SATA 6 Gb/s
Rotational Speed 7200 RPM
Buffer / Cache 256 MB
Form Factor 3.5 inch
Sustained Transfer Rate 255 MB/s
MTBF 2.5 Million Hours
Dimensions (L x W x H) 5.79 x 4.00 x 1.03 in
Weight 1.46 lbs (Per Drive)
Operating Temp 5°C to 60°C
Sector Size 512e
  • All packages are shipped same day if the order is placed before 3PM CST

    We use UPS/FedEx to ship the packages with different service levels offered by UPS/FedEx

    Overnight Shipping take 1 business day
    Expedited Shipping take about 2-3 business days
    Ground shipping take about 3-5 business days

    You can select the desired service level at Checkout and we will make sure the package is shipped as per the selected service level.

  • We Accept

    i) PayPal
    ii) All Credit & Debit Cards
    iii) Purchase Orders
    iv) Check
    v) Bank Transfer/ACH/Wire Transfer

    To process the order through Paypal/CC, you can simply checkout and process the payment.

    If you want to issue us Purchase Order/Check/Bank Transfer, Please contact us at the following details

    Call: 469.458.9636
    Email: sales@dcsupplies.net

  • If you have any queries, please contact us at the following details and we will be happy to help

    Call
    469.458.9636
    469.458.9638

    Email
    sales@dcsupplies.net

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