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Silver 3.5 inch internal hard drive with SAS connector

Western Digital

Western Digital WUH721414AL5204 14TB SAS 12Gb/s 7200RPM 512MB 3.5" internal hard drive

SKU CH-BK4E-706D1

A 14TB SAS 12Gb/s 3.5" internal hard drive spinning at 7200 RPM with a 512MB cache, engineered for continuous 24/7 surveillance workloads

  • Total capacity14 TB
  • Interface typeSAS 12Gb/s
  • Form factor3.5 in (8.89 cm)
  • Rotational speed7,200 RPM
  • 14TB capacity supports large surveillance archives
  • SAS 12Gb/s interface moves data quickly
  • 7200 RPM spindle delivers steady throughput
  • 512MB cache smooths burst workloads
  • Engineered for 24/7 NVR environments

14TB SAS hard drive

This 14TB SAS hard drive uses a 12Gb/s interface and spins at 7200 RPM. It is built for surveillance networks and other always-on workloads that exceed typical desktop duty cycles. The 3.5 inch form factor fits standard drive bays in servers and network video recorders.

Sustained 24/7 operation

The drive is engineered for continuous operation rather than short bursts, withstanding elevated heat and vibration inside NVR enclosures. A 512MB cache helps smooth heavy write streams from multiple high-definition cameras. It targets environments where drives run 24 hours a day, seven days a week.

SAS 12Gb/s interface limits

The SAS 12Gb/s link sets the maximum host transfer rate for this drive. Actual throughput will vary with system topology, cable length and controller capabilities. Buyers who need a different interface or higher single-drive bandwidth should consider other storage architectures.

How it compares

Measured against everything we stock in 3.5-Inch Internal Desktop HDDs, at today’s prices. Recalculated every night.

Price $233.99
Pricier than about 74% of the 4,938 comparable items (median $107.99).
Total capacity 14 TB
Higher than about 91% of the 2,372 comparable items (median 2 TB).
Price per TB $16.71 per TB
Cheaper than about 94% of the 2,365 comparable items (median $62.21 per TB).

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Specifications

Product
Brand nameWestern Digital
Part numberWUH721414AL5204
Total capacity14 TB
Performance
Rotational speed7,200 RPM
Ports & slots
Interface typeSAS 12Gb/s
Size & build
Form factor3.5 in (8.89 cm)

Questions about this item

How much power does the 14TB SAS 12Gb/s 7200RPM drive draw during continuous 24/7 operation?

The drive is engineered for always-on surveillance workloads and handles elevated heat fluctuations in NVR environments without the short-interval limits of average desktop drives.

What host interface and backplane does the WUH721414AL5204 require to operate?

It needs a SAS 12Gb/s host bus adapter or RAID controller and a 3.5-inch drive bay with SAS power and data connectors.

Can the 14TB SAS 12Gb/s drive share a backplane with older 6Gb/s SAS drives?

Yes, the SAS 12Gb/s interface negotiates down to 6Gb/s so it will work alongside legacy SAS drives on the same backplane.

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