Toshiba MG11 Series 20TB
Enterprise HDD
Part number MG11ACA20TE · MG11 Series series · SATA 6Gb/s. If your machine is listed below, this drive is officially supported — not a forum workaround.
Part of the Toshiba MG11 Series series →
Check MG11ACA20TE 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 135 machines and series — 93 QNAP, 10 Asustor, 32 TerraMaster. 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 20 TB capacity, ranked by how many machines list them:
Quick answers
Is the MG11ACA20TE officially compatible with my NAS?
It appears on the official compatibility lists of 135 machines and series — 93 QNAP, 10 Asustor, 32 TerraMaster. Every machine page linked below shows the vendor's own list entry, refreshed daily.
Is the MG11ACA20TE 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 MG11ACA20TE 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 MG11ACA20TE?
At the same capacity, the most widely listed alternatives are Toshiba MG10ACA20TE (144 machines), Toshiba MG10ACA20TA (133 machines), Seagate ST20000NM007D (130 machines). The full ranked list is below.