NAS Drive Compatibility

Western Digital Purple 14TB

Surveillance HDD

Part number WD140EJRX · Purple series · 3.5" SATA HDD. If your machine is listed below, this drive is officially supported — not a forum workaround.

PurpleNAS HARD DRIVE3.5" SATA HDDWESTERN DIGITAL

Part of the Western Digital Purple series →

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57
Compatible NAS models
43 Syn · 1 QNAP · 13 Asus · 0 TM
By vendor
14 TB
Listed capacity
Western Digital
Manufacturer
Surveillance
Product line (manufacturer rating)
5400
Spindle speed (RPM)
CMR
Recording
256 MB
Cache
180 TB
Rated workload / year

Specifications are the manufacturer's published ratings for this product series; verify the exact part number before purchase.

Strong pick as a cold copy

Rated CMR (conventional magnetic recording) — the right recording type for a large cold copy. CMR keeps a full-library backup pass fast even at 16–24 TB, which is the whole point of the offline slot in a 3-2-1 plan: rotate two drives monthly, keep one powered off, and the backup tooling (Veeam, Duplicati, Hyper Backup, HBS 3) does the scheduling. Full rule and vendor tool table: 3-2-1 for NAS.

Compatibility verdict

It appears on the official compatibility lists of 57 machines and series — 43 Synology, 1 QNAP, 13 Asustor. 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. Its series rating is on file as CMR (conventional) — what RAID rebuilds and full-library copies want.

Compatible NAS models

Synology DS1019+5-bay See its full HCL → Synology DS1181-bay See its full HCL → Synology DS119j1-bay See its full HCL → Synology DS120j1-bay See its full HCL → Synology DS15155-bay See its full HCL → Synology DS1515+5-bay See its full HCL → Synology DS15175-bay See its full HCL → Synology DS1517+5-bay See its full HCL → Synology DS1520+5-bay See its full HCL → Synology DS1618+6-bay See its full HCL → Synology DS1815+8-bay See its full HCL → Synology DS18178-bay See its full HCL → Synology DS1817+8-bay See its full HCL → Synology DS1819+8-bay See its full HCL → Synology DS215+2-bay See its full HCL → Synology DS2162-bay See its full HCL → Synology DS216+2-bay See its full HCL → Synology DS216+II2-bay See its full HCL → Synology DS2182-bay See its full HCL → Synology DS218+2-bay See its full HCL → Synology DS218j2-bay See its full HCL → Synology DS218play2-bay See its full HCL → Synology DS220+2-bay See its full HCL → Synology DS415+4-bay See its full HCL → Synology DS415play4-bay See its full HCL → Synology DS4164-bay See its full HCL → Synology DS416j4-bay See its full HCL → Synology DS416play4-bay See its full HCL → Synology DS4184-bay See its full HCL → Synology DS418j4-bay See its full HCL → Synology DS418play4-bay See its full HCL → Synology DS420+4-bay See its full HCL → Synology DS420j4-bay See its full HCL → Synology DS7157-bay See its full HCL → Synology DS716+7-bay See its full HCL → Synology DS716+II7-bay See its full HCL → Synology DS718+7-bay See its full HCL → Synology DS720+7-bay See its full HCL → Synology DS916+4-bay See its full HCL → Synology DS918+4-bay See its full HCL → Synology DS920+4-bay See its full HCL → Synology DVA1622 See its full HCL → Synology DVA3219 See its full HCL → QNAP TS-653D See its full HCL → Asustor AS 10 v2 See its full HCL → Asustor AS 11 See its full HCL → Asustor AS 31/32 v2 See its full HCL → Asustor AS 33 See its full HCL → Asustor AS 40 See its full HCL → Asustor AS 52/53 See its full HCL → Asustor AS 63/64 See its full HCL → Asustor AS 65 See its full HCL → Asustor AS 65R See its full HCL → Asustor AS 66 See its full HCL → Asustor AS 70 See its full HCL → Asustor AS 71 See its full HCL → Asustor AS6004U See its full HCL →

Same-capacity alternatives

Other drives listed at 14 TB capacity, ranked by how many machines list them:

Western Digital WD141KFGX 355 machines · Red Pro Seagate ST14000NM001G 313 machines · EXOS x16 Seagate ST14000NE0008 296 machines · IronWolf Pro Toshiba MG07ACA14TE 295 machines · MG07ACA*** Seagate ST14000VE0008 287 machines · SkyHawkAI Seagate ST14000VN0008 274 machines · IronWolf Toshiba MN07ACA14T 268 machines · MN07ACA*** Toshiba HDWG21EYZSTA 250 machines · N300

Quick answers

Is the WD140EJRX officially compatible with my NAS?

It appears on the official compatibility lists of 57 machines and series — 43 Synology, 1 QNAP, 13 Asustor. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the WD140EJRX CMR or SMR?

As a Western Digital Purple drive, it is rated CMR. CMR (conventional magnetic recording) is what a RAID array wants: SMR drives slow rebuilds dramatically. See the <a href="/faq/cmr-vs-smr-nas-drives/">CMR vs SMR guide</a> for the full series table.

Is the WD140EJRX 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. Its series rating is on file as CMR (conventional) — what RAID rebuilds and full-library copies want.

Can I use the WD140EJRX for a 3-2-1 cold backup copy?

Rated CMR (conventional magnetic recording) — the right recording type for a large cold copy. CMR keeps a full-library backup pass fast even at 16–24 TB, which is the whole point of the offline slot in a 3-2-1 plan: rotate two drives monthly, keep one powered off, and the backup tooling (Veeam, Duplicati, Hyper Backup, HBS 3) does the scheduling. Full rule and vendor tool table: 3-2-1 for NAS.

What are alternatives to the WD140EJRX?

At the same capacity, the most widely listed alternatives are Western Digital WD141KFGX (355 machines), Seagate ST14000NM001G (313 machines), Seagate ST14000NE0008 (296 machines). The full ranked list is below.