Western Digital Red Plus 1TB
NAS HDD
Part number WD10EFRX (Red NASware 3.0) · Red Plus series · SATA 6Gb/s (SATA III). If your machine is listed below, this drive is officially supported — not a forum workaround.
Part of the Western Digital Red Plus series →
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Specifications are the manufacturer's published ratings for this product series; verify the exact part number before purchase.
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 209 machines and series — 209 QNAP. This is a NAS-class drive: built for 24/7 operation with vibration compensation for multi-bay enclosures — the right tier for most 1-8 bay home or small-office NAS units. Its series rating is on file as CMR (conventional) — what RAID rebuilds and full-library copies want.
Compatible NAS models
Same-capacity alternatives
Other drives listed at 1 TB capacity, ranked by how many machines list them:
Quick answers
Is the WD10EFRX (Red NASware 3.0) officially compatible with my NAS?
It appears on the official compatibility lists of 209 machines and series — 209 QNAP. Every machine page linked below shows the vendor's own list entry, refreshed daily.
Is the WD10EFRX (Red NASware 3.0) CMR or SMR?
As a Western Digital Red Plus 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 WD10EFRX (Red NASware 3.0) a good NAS drive?
This is a NAS-class drive: built for 24/7 operation with vibration compensation for multi-bay enclosures — the right tier for most 1-8 bay home or small-office NAS units. Its series rating is on file as CMR (conventional) — what RAID rebuilds and full-library copies want.
Can I use the WD10EFRX (Red NASware 3.0) 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 WD10EFRX (Red NASware 3.0)?
At the same capacity, the most widely listed alternatives are Western Digital WD1005VBYZ (451 machines), Seagate ST1000NM0008 (381 machines), Toshiba MG04ACA100N (358 machines). The full ranked list is below.