WD Purple Hard Drive: Which Part Number Gets Which Rating, and UK Prices

WD Purple hard drive models: the April 2019 sheet, part by part

WD's April 2019 WD Purple sheet lists nine model numbers, from WD121PURZ down to WD10PURZ. The rating follows the exact model, not only the capacity: two of the nine are 8TB, and they sit in different tiers. The sheet is dated 2019, but it is the file WD's WD Purple data-sheet address served when we read it on 9 November 2026.

WD defines the workload rate as terabytes transferred, annualised over 8,760 hours, and it says each WD Purple drive is optimised for up to 64 cameras. A recorder sending many camera streams to one drive should be checked against both numbers, because they are separate limits.

WD Purple 4TB, 6TB, 2TB or 1TB: what changes with capacity

From 1TB to 6TB the sheet gives the same AllFrame 4K rating of up to 180TB a year and the same three-year limited warranty. The only step is in drive bays: 8 for the 1TB, 2TB and 3TB models, 8+ from 4TB. For a single-drive recorder the bay column hardly matters, so within that range the size you need and the price per terabyte decide it.

In a multi-bay NVR the column does matter: WD rates the AllFrame AI models for 16+ bays, twice the starting point of the 4TB and 6TB drives. At 8TB that higher rating comes only with WD82PURZ, so an 8TB buyer gets it by part number, not by capacity.

WD Purple price on Amazon.co.uk

In all, the table draws on 12 listings in stock. The table shows 12 listings, from £41.25/TB, in pounds sterling inc VAT. Purple Pro listings are left out; they have their own page. A 1TB or 2TB row appears only while one is in stock, so check the capacity column before you assume a size is missing for good.

We print no recording technology for standard WD Purple. We have not found a WD document in our sources that states CMR or SMR for these part numbers, and the April 2019 sheet has no recording row.

WD Purple 10TB and 12TB: standard line or Purple Pro

The standard 10TB and 12TB models on the sheet are WD101PURZ and WD121PURZ, both in the AllFrame AI tier at up to 360TB a year. If no standard 10TB or 12TB row is in the table above, look at the Purple Pro table for those sizes.

WD Purple Pro covers that line's 8TB to 26TB range, from WD8002PURP to WD260PURP on WD's July 2025 sheet, which WD rates at up to 550TB a year with a five-year limited warranty.

WD Purple or WD Purple Pro

Between them the two sheets give WD three rungs: 180TB for the AllFrame 4K models, 360TB for WD121PURZ, WD101PURZ and WD82PURZ, and 550TB for Purple Pro. Whether a higher rung is worth paying for depends on how much your recorder writes in a year. The CCTV storage calculator works that out from cameras, bitrate and hours, so you can set the answer against all three.

WD Purple in a Hikvision recorder

If your recorder is a Hikvision, its v20260515 drive list includes WD84PURZ-85B4HY0, an 8TB WD Purple, in several recorder-series tables. The dates differ by table: some of its rows carry 23 February 2021, others 8 February 2021, and rows for WD84PURZ without the suffix carry 18 July 2024. Confirm the part number appears in the table for your own model.

WD84PURZ is not one of the nine models on the April 2019 sheet, and no later WD Purple sheet is in our sources, so we give it no workload rating or warranty from a WD document. Hikvision also warns that IoT-model drives are not compatible with its recorders because they are encrypted. WD Purple 8TB sets the three 8TB part numbers side by side.