WD Red Pro 18 TB
NAS HDD
Part number WD181KFGX - 68CKWN0 · Red Pro series · 3.5'' SATA HDD. If your machine is listed below, this drive is officially supported — not a forum workaround.
Part of the WD Red Pro series →
Check WD181KFGX price on Amazon partner link
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 3 machines and series — 3 Asustor. 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. 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
Same-capacity alternatives
Other drives listed at 18 TB capacity, ranked by how many machines list them:
Quick answers
Is the WD181KFGX - 68CKWN0 officially compatible with my NAS?
It appears on the official compatibility lists of 3 machines and series — 3 Asustor. Every machine page linked below shows the vendor's own list entry, refreshed daily.
Is the WD181KFGX - 68CKWN0 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. 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 WD181KFGX - 68CKWN0 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 WD181KFGX - 68CKWN0?
At the same capacity, the most widely listed alternatives are Seagate ST18000NM000J (211 machines), Seagate ST18000NE000-2YY101 (194 machines), Seagate ST18000NT001-3LU101 (192 machines). The full ranked list is below.