Synology SAT5210 7TB
Enterprise SSD
Part number SAT5210-7000G · SAT5210 series · 2.5" SATA SSD. If your machine is listed below, this drive is officially supported — not a forum workaround.
Part of the Synology SAT5210 series →
Check SAT5210 price on Amazon partner link
This is an SSD — an excellent cold copy for the off-site slot of a 3-2-1 plan: fast sequential transfer, silent, no moving parts to degrade on the shelf. The one catch is charge retention: a powered-off NVMe/SATA SSD slowly loses charge (weeks to months), which matters for a copy that sits unplugged. Keep the offline copy plugged in for a few hours once a month, or keep the 3-2-1 'other' copy on spinning media instead. Pair it with a scheduled backup job — see the backup software encyclopedia (Veeam, Duplicati, Hyper Backup) and the 3-2-1 rule.
Compatibility verdict
It appears on the official compatibility lists of 75 machines and series — 75 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 7 TB capacity, ranked by how many machines list them:
Quick answers
Is the SAT5210-7000G officially compatible with my NAS?
It appears on the official compatibility lists of 75 machines and series — 75 Synology. Every machine page linked below shows the vendor's own list entry, refreshed daily.
Is the SAT5210-7000G 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 SAT5210-7000G for a 3-2-1 cold backup copy?
This is an SSD — an excellent cold copy for the off-site slot of a 3-2-1 plan: fast sequential transfer, silent, no moving parts to degrade on the shelf. The one catch is charge retention: a powered-off NVMe/SATA SSD slowly loses charge (weeks to months), which matters for a copy that sits unplugged. Keep the offline copy plugged in for a few hours once a month, or keep the 3-2-1 'other' copy on spinning media instead. Pair it with a scheduled backup job — see the backup software encyclopedia (Veeam, Duplicati, Hyper Backup) and the 3-2-1 rule.
What are alternatives to the SAT5210-7000G?
At the same capacity, the most widely listed alternatives are Seagate ST7000VN0002 (273 machines), Seagate ST7000VN0002 - 2EL11B (82 machines). The full ranked list is below.