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Silver 3.5 inch hard drive with green label

Western Digital

Western Digital 16TB WD Red Pro 7200 RPM SATA 3.5" 256MB Cache Hard Drive

SKU CH-E1B1-46N1S

High-capacity 16TB 3.5" SATA hard drive rated for 550TB/yr workloads in 24-bay NAS systems

  • Designed for 24-bay NAS systems
  • Handles 550TB per year workload rating
  • 7200 RPM with 256MB cache for fast access
  • CMR technology ensures consistent RAID performance
  • Tested for compatibility with major NAS vendors

16TB NAS drive for multi-bay systems

This 16TB WD Red Pro hard drive is built for RAID-optimised NAS enclosures with up to 24 bays. It targets medium and large business environments that run 24x7 and need reliable archiving, file sharing and RAID rebuild performance on file systems such as ZFS.

550TB per year workload rating and 256MB cache

The drive is rated for a 550TB annualised workload rate at a typical 40C operating temperature. Its 256MB cache and 7200 RPM spindle speed provide headroom for heavy multi-user access, while the CMR recording technology sustains consistent write performance during extended array rebuilds.

SATA 6 Gb/s interface ceiling

The SATA 6 Gb/s link sets the maximum theoretical transfer ceiling for this 3.5 inch drive. Actual throughput will vary with the host controller, cabling and the number of drives sharing the bus, so the interface can become the limiting factor before the drive’s own mechanical limits are reached.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $693.99
Pricier than about 91% of the 8,808 comparable items (median $16.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the 16TB WD Red Pro run with my existing 4TB SATA drives in a mixed-capacity RAID array?

The drive uses the SATA interface and is tested for compatibility with most NAS enclosures, so it can operate alongside older SATA drives in the same system.

How can I verify the 7200 RPM drive is performing at its rated 550TB per year workload after installation?

Monitor the drive's SMART data for power-on hours and total bytes written; the annualised workload rate is calculated from those counters at a typical 40C operating temperature.

Does the 3.5-inch WD Red Pro ship with mounting screws or a SATA cable, or must I buy them separately?

The drive is supplied as a bare 3.5-inch unit; mounting hardware and SATA data cables are not included and must be sourced separately.

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