NAS Drive Compatibility

Western Digital Purple 10TB

Surveillance HDD

Part number WD100EJRX · 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 →

Check WD100EJRX price on Amazon  partner link

80
Compatible NAS models
74 Syn · 0 QNAP · 6 Asus · 0 TM
By vendor
10 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 80 machines and series — 74 Synology, 6 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 DS1111-bay See its full HCL → Synology DS1121-bay See its full HCL → Synology DS112+1-bay See its full HCL → Synology DS112j1-bay See its full HCL → Synology DS1141-bay See its full HCL → Synology DS1151-bay See its full HCL → Synology DS115j1-bay See its full HCL → Synology DS1161-bay See its full HCL → Synology DS1513+5-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 DS1813+8-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 DS2015xs See its full HCL → Synology DS2112-bay See its full HCL → Synology DS211j2-bay See its full HCL → Synology DS212j2-bay See its full HCL → Synology DS213air2-bay See its full HCL → Synology DS213j2-bay See its full HCL → Synology DS2142-bay See its full HCL → Synology DS214+2-bay See its full HCL → Synology DS214play2-bay See its full HCL → Synology DS214se2-bay See its full HCL → Synology DS215+2-bay See its full HCL → Synology DS215j2-bay See its full HCL → Synology DS2162-bay See its full HCL → Synology DS216j2-bay See its full HCL → Synology DS216play2-bay See its full HCL → Synology DS216se2-bay See its full HCL → Synology DS218j2-bay See its full HCL → Synology DS2413+12-bay See its full HCL → Synology DS2415+12-bay See its full HCL → Synology DS2419+12-bay See its full HCL → Synology DS2419+II12-bay See its full HCL → Synology DS3612xs12-bay See its full HCL → Synology DS3615xs12-bay See its full HCL → Synology DS3617xs12-bay See its full HCL → Synology DS3617xsII12-bay See its full HCL → Synology DS412+4-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 DS713+7-bay See its full HCL → Synology DS7157-bay See its full HCL → Synology DS918+4-bay See its full HCL → Synology DVA3219 See its full HCL → Synology RS1219+ See its full HCL → Synology RS18016xs+ See its full HCL → Synology RS18017xs+ See its full HCL → Synology RS214 See its full HCL → Synology RS217 See its full HCL → Synology RS2416+ See its full HCL → Synology RS2416RP+ See its full HCL → Synology RS2418+ See its full HCL → Synology RS2418RP+ See its full HCL → Synology RS2818RP+ See its full HCL → Synology RS3617RPxs See its full HCL → Synology RS3617xs+ See its full HCL → Synology RS3618xs See its full HCL → Synology RS4017xs+ See its full HCL → Synology RS814+ See its full HCL → Synology RS814RP+ See its full HCL → Synology RS815+ See its full HCL → Synology RS815RP+ See its full HCL → Synology RS818+ See its full HCL → Synology RS818RP+ See its full HCL → Synology RS820+ See its full HCL → Synology RS820RP+ See its full HCL → Asustor AS 10 See its full HCL → Asustor AS 31/32 See its full HCL → Asustor AS 50/51 See its full HCL → Asustor AS 61/62 See its full HCL → Asustor AS 63/64 See its full HCL → Asustor AS 70 See its full HCL →

Same-capacity alternatives

Other drives listed at 10 TB capacity, ranked by how many machines list them:

Seagate ST10000NM0086 367 machines · Exos X10 Toshiba MN06ACA10T 343 machines · MN06ACA*** Toshiba HDWG11AXZSTA 326 machines · N300 Seagate ST10000NE0004 325 machines · IronWolf Pro Toshiba HDWG11AUZSVA 307 machines · N300 Seagate ST10000VE0008 300 machines · SkyHawkAI Seagate ST10000NM0016 298 machines · Exos X10 Seagate ST10000NE0008 297 machines · IronWolf Pro

Quick answers

Is the WD100EJRX officially compatible with my NAS?

It appears on the official compatibility lists of 80 machines and series — 74 Synology, 6 Asustor. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the WD100EJRX 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 WD100EJRX 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 WD100EJRX 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 WD100EJRX?

At the same capacity, the most widely listed alternatives are Seagate ST10000NM0086 (367 machines), Toshiba MN06ACA10T (343 machines), Toshiba HDWG11AXZSTA (326 machines). The full ranked list is below.