Western Digital Surveillance Purple 4TB

Surveillance HDD

Part number WD43PURZ · Surveillance Purple series · SATA 6Gb/s (SATA III). If your machine is listed below, this drive is officially supported — not a forum workaround.

SurveillanceNAS HARD DRIVE3.5" SATA HDDWESTERN DIGITAL

Check WD43PURZ price on Amazon  partner link

26
Compatible NAS models
0 Syn · 24 QNAP · 0 Asus · 0 TM
By vendor
4 TB
Listed capacity
Western Digital
Manufacturer
3-2-1 cold backup fit

No series-level recording rating is on file for this part number yet — check the exact model for CMR vs SMR before buying it as a large cold copy (SMR is the one trait that makes a 16 TB+ backup copy painfully slow). The 3-2-1 guide and the backup tools encyclopedia cover what to schedule it with.

Compatibility verdict

It appears on the official compatibility lists of 26 machines and series — 24 QNAP, 2 UGREEN. This is a Surveillance-class drive: rated for heavier sustained workloads than desktop drives. It is a strong pick for a NAS running 24/7, large-array rebuilds or camera workloads, and enterprise lines are also the drives most widely listed across all five vendors' HCLs. No series-level recording rating is on file for this part number yet, so check CMR vs SMR on the exact model before buying for an array.

Compatible NAS models

QNAP TL-R1200PES-RP See its full HCL → QNAP TL-R2400PES-RP See its full HCL → QNAP TS-1273AU-RP See its full HCL → QNAP TS-1673AU-RP See its full HCL → QNAP TS-216G See its full HCL → QNAP TS-2483XU-RP See its full HCL → QNAP TS-464U See its full HCL → QNAP TS-464eU See its full HCL → QNAP TS-855eU See its full HCL → QNAP TS-855eU-RP See its full HCL → QNAP TS-873AU See its full HCL → QNAP TS-873AU-RP See its full HCL → QNAP TS-873AeU See its full HCL → QNAP TS-873AeU-RP See its full HCL → QNAP TS-h1277AXU-RP See its full HCL → QNAP TS-h1677AXU-RP See its full HCL → QNAP TS-h1887XU-RP See its full HCL → QNAP TS-h2287XU-RP See its full HCL → QNAP TS-h2483XU-RP See its full HCL → QNAP TS-h3087XU-RP See its full HCL → QNAP TS-h987XU-RP See its full HCL → QNAP TVS-h674 See its full HCL → QNAP TVS-h874 See its full HCL → QNAP TVS-h874X See its full HCL → UGREEN ha100 See its full HCL → UGREEN ha100-pro See its full HCL →

Same-capacity alternatives

Other drives listed at 4 TB capacity, ranked by how many machines list them:

Toshiba MG04ACA400E 451 machines · MG04ACA**** Western Digital WD4003FFBX 390 machines · Red Pro Seagate ST4000NE0015 379 machines · Enterprise NAS HDD Toshiba MG04ACA400N 353 machines · MG04ACA**** Western Digital WD40PURZ 352 machines · Purple Seagate ST4000NM002A 346 machines · Exos 7E8 Seagate ST4000NE0025 344 machines · IronWolf Pro Western Digital HUS726T4TALA6L4 333 machines · Ultrastar 7K6

Quick answers

Is the WD43PURZ officially compatible with my NAS?

It appears on the official compatibility lists of 26 machines and series — 24 QNAP, 2 UGREEN. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the WD43PURZ a good NAS drive?

This is a Surveillance-class drive: rated for heavier sustained workloads than desktop drives. It is a strong pick for a NAS running 24/7, large-array rebuilds or camera workloads, and enterprise lines are also the drives most widely listed across all five vendors' HCLs. No series-level recording rating is on file for this part number yet, so check CMR vs SMR on the exact model before buying for an array.

Can I use the WD43PURZ for a 3-2-1 cold backup copy?

No series-level recording rating is on file for this part number yet — check the exact model for CMR vs SMR before buying it as a large cold copy (SMR is the one trait that makes a 16 TB+ backup copy painfully slow). The 3-2-1 guide and the backup tools encyclopedia cover what to schedule it with.

What are alternatives to the WD43PURZ?

At the same capacity, the most widely listed alternatives are Toshiba MG04ACA400E (451 machines), Western Digital WD4003FFBX (390 machines), Seagate ST4000NE0015 (379 machines). The full ranked list is below.