Crucial M550 128GB
Desktop SSD
Part number CT128M550SSD1 · M550 series · 2.5" SATA SSD. If your machine is listed below, this drive is officially supported — not a forum workaround.
Part of the Crucial M550 series →
Check CT128M550SSD1 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 114 machines and series — 114 Synology. 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 128 GB capacity, ranked by how many machines list them:
Quick answers
Is the CT128M550SSD1 officially compatible with my NAS?
It appears on the official compatibility lists of 114 machines and series — 114 Synology. Every machine page linked below shows the vendor's own list entry, refreshed daily.
Is the CT128M550SSD1 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 CT128M550SSD1 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 CT128M550SSD1?
At the same capacity, the most widely listed alternatives are Micron MTFDDAK128MBF (123 machines), Micron MTFDDAK128MAY (114 machines), Transcend TS128GSSD370S (107 machines). The full ranked list is below.