Western Digital Ultrastar C10K1800 1.8TB
Enterprise HDD
Part number HUC101818CS4204 · Ultrastar C10K1800 series · 2.5" SAS HDD. If your machine is listed below, this drive is officially supported — not a forum workaround.
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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 Synology. This is a Enterprise-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
Same-capacity alternatives
Other drives listed at 1.8 TB capacity, ranked by how many machines list them:
Quick answers
Is the HUC101818CS4204 officially compatible with my NAS?
It appears on the official compatibility lists of 3 machines and series — 3 Synology. Every machine page linked below shows the vendor's own list entry, refreshed daily.
Is the HUC101818CS4204 a good NAS drive?
This is a Enterprise-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 HUC101818CS4204 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 HUC101818CS4204?
At the same capacity, the most widely listed alternatives are Toshiba AL15SEB18EQ (8 machines), Toshiba AL14SEB18EQ (7 machines), Western Digital HUC101818CS4200 - 0B27978 (6 machines). The full ranked list is below.