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3.5 inch internal hard drive in silver metal casing

Western Digital

Western Digital 18TB WD Purple Surveillance HDD 3.5" 256MB Cache 2 in 1 accessory

SKU CH-MAYY-QGVGV

An 18 TB surveillance hard drive with 256 MB cache and 3.5 inch form factor, rated for 180 TB per year workload and up to 64 cameras

  • Engineered for 24/7 surveillance systems with AllFrame technology
  • Supports up to 64 cameras for high-definition security recording
  • 180 TB/yr workload rate handles continuous write-intensive operations
  • Prioritised write operations maximise video capture performance
  • 5" SATA drive with 256MB cache for surveillance storage

18 TB Surveillance Hard Drive

The Western Digital WD Purple 18 TB hard drive is engineered for 24/7 security recording. It fits 3.5-inch bays and connects through a SATA interface with a 256 MB cache. The drive targets installers and businesses building always-on video surveillance systems.

Suited for multi-camera recorders

This drive supports workloads up to 180 TB per year and handles streams from up to 64 cameras. AllFrame technology reduces pixelation and interruptions during continuous write operations. It is not intended for general desktop storage, boot drives, or workloads that demand low-latency random access.

180 TB annual workload rating

The 180 TB per year workload rate is the key figure that defines whether this drive matches a surveillance deployment. It is calculated from 8760 annual power-on hours and reflects sustained sequential writing. Verify that the recorder’s expected yearly writes stay within this limit before purchasing.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $974.99
Pricier than about 91% of the 7,473 comparable items (median $56.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the 3.5" WD Purple drive work in my older recorder that only has SATA ports?

Yes, the drive uses a standard SATA interface and fits any 3.5" bay, so it connects directly to legacy recorders without adapters.

How can I verify the drive is handling 24/7 recording correctly after installation?

Check the recorder's SMART data for workload-rate and power-on-hours counters; the drive is rated for 180 TB per year across 8760 powered-on hours.

Does the box include mounting screws or a SATA cable, or must I buy them separately?

The drive ships as a bare 3.5" unit; mounting screws and a SATA data cable are not included and must be sourced separately.

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