Western Digital 250GB
Other HDD
Part number WD2500KS · HDD. If your machine is listed below, this drive is officially supported — not a forum workaround.
Check WD2500KS 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 8 machines and series — 8 QNAP. Check the class badge above: drives tagged NAS or Enterprise are built for 24/7 multi-bay operation. Desktop-class drives often lack vibration resistance and are usually absent from vendor 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 250 GB capacity, ranked by how many machines list them:
Quick answers
Is the WD2500KS officially compatible with my NAS?
It appears on the official compatibility lists of 8 machines and series — 8 QNAP. Every machine page linked below shows the vendor's own list entry, refreshed daily.
Is the WD2500KS a good NAS drive?
Check the class badge above: drives tagged NAS or Enterprise are built for 24/7 multi-bay operation. Desktop-class drives often lack vibration resistance and are usually absent from vendor 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 WD2500KS 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 WD2500KS?
At the same capacity, the most widely listed alternatives are Samsung MZ-75E250 (133 machines), Western Digital WD2502ABYS (114 machines), Crucial CT250MX200SSD1 (110 machines). The full ranked list is below.