Crucial M550 256GB

Desktop SSD

Part number CT256M550SSD1 · 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 CT256M550SSD1 price on Amazon partner link

114

Compatible NAS models

114 Syn · 0 QNAP · 0 Asus · 0 TM

By vendor

256 GB

Listed capacity

Crucial

Manufacturer

Strong pick as a cold 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.

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

Synology DS1010+5-bay See its full HCL → Synology DS110+1-bay See its full HCL → Synology DS110j1-bay See its full HCL → Synology DS1111-bay See its full HCL → Synology DS1121-bay See its full HCL → Synology DS112+1-bay See its full HCL → Synology DS112j1-bay See its full HCL → Synology DS1141-bay See its full HCL → Synology DS1151-bay See its full HCL → Synology DS115j1-bay See its full HCL → Synology DS1161-bay See its full HCL → Synology DS1511+5-bay See its full HCL → Synology DS1512+5-bay See its full HCL → Synology DS1513+5-bay See its full HCL → Synology DS15155-bay See its full HCL → Synology DS15175-bay See its full HCL → Synology DS1618+6-bay See its full HCL → Synology DS1812+8-bay See its full HCL → Synology DS1813+8-bay See its full HCL → Synology DS18178-bay See its full HCL → Synology DS1819+8-bay See its full HCL → Synology DS2015xs See its full HCL → Synology DS210+2-bay See its full HCL → Synology DS210j2-bay See its full HCL → Synology DS2112-bay See its full HCL → Synology DS211+2-bay See its full HCL → Synology DS211j2-bay See its full HCL → Synology DS2122-bay See its full HCL → Synology DS212+2-bay See its full HCL → Synology DS212j2-bay See its full HCL → Synology DS2132-bay See its full HCL → Synology DS213+2-bay See its full HCL → Synology DS213air2-bay See its full HCL → Synology DS213j2-bay See its full HCL → Synology DS2142-bay See its full HCL → Synology DS214+2-bay See its full HCL → Synology DS214play2-bay See its full HCL → Synology DS214se2-bay See its full HCL → Synology DS215+2-bay See its full HCL → Synology DS215j2-bay See its full HCL → Synology DS2162-bay See its full HCL → Synology DS216+2-bay See its full HCL → Synology DS216+II2-bay See its full HCL → Synology DS216j2-bay See its full HCL → Synology DS216play2-bay See its full HCL → Synology DS216se2-bay See its full HCL → Synology DS218j2-bay See its full HCL → Synology DS2411+12-bay See its full HCL → Synology DS2413+12-bay See its full HCL → Synology DS2415+12-bay See its full HCL → Synology DS3611xs12-bay See its full HCL → Synology DS3612xs12-bay See its full HCL → Synology DS3615xs12-bay See its full HCL → Synology DS4104-bay See its full HCL → Synology DS410j4-bay See its full HCL → Synology DS4114-bay See its full HCL → Synology DS411+4-bay See its full HCL → Synology DS411+II4-bay See its full HCL → Synology DS411j4-bay See its full HCL → Synology DS411slim4-bay See its full HCL → Synology DS412+4-bay See its full HCL → Synology DS4134-bay See its full HCL → Synology DS413j4-bay See its full HCL → Synology DS4144-bay See its full HCL → Synology DS414j4-bay See its full HCL → Synology DS414slim4-bay See its full HCL → Synology DS4164-bay See its full HCL → Synology DS416j4-bay See its full HCL → Synology DS416play4-bay See its full HCL → Synology DS416slim4-bay See its full HCL → Synology DS710+7-bay See its full HCL → Synology DS712+7-bay See its full HCL → Synology DS713+7-bay See its full HCL → Synology DS7157-bay See its full HCL → Synology DS716+7-bay See its full HCL → Synology DS716+II7-bay See its full HCL → Synology DS916+4-bay See its full HCL → Synology DVA3219 See its full HCL → Synology FS1018 See its full HCL → Synology RS10613xs+ See its full HCL → Synology RS18016xs+ See its full HCL → Synology RS212 See its full HCL → Synology RS214 See its full HCL → Synology RS217 See its full HCL → Synology RS2211+ See its full HCL → Synology RS2211RP+ See its full HCL → Synology RS2212+ See its full HCL → Synology RS2212RP+ See its full HCL → Synology RS2414+ See its full HCL → Synology RS2414RP+ See its full HCL → Synology RS2416+ See its full HCL → Synology RS2416RP+ See its full HCL → Synology RS3411RPxs See its full HCL → Synology RS3411xs See its full HCL → Synology RS3412RPxs See its full HCL → Synology RS3412xs See its full HCL → Synology RS3413xs+ See its full HCL → Synology RS3614RPxs See its full HCL → Synology RS3614xs See its full HCL → Synology RS3614xs+ See its full HCL → Synology RS3617xs See its full HCL → Synology RS411 See its full HCL → Synology RS810+ See its full HCL → Synology RS810RP+ See its full HCL → Synology RS812 See its full HCL → Synology RS812+ See its full HCL → Synology RS812RP+ See its full HCL → Synology RS814 See its full HCL → Synology RS814+ See its full HCL → Synology RS814RP+ See its full HCL → Synology RS815 See its full HCL → Synology RS815+ See its full HCL → Synology RS815RP+ See its full HCL → Synology RS816 See its full HCL →

Same-capacity alternatives

Other drives listed at 256 GB capacity, ranked by how many machines list them:

Micron MTFDDAK256MBF 123 machines · M600 Micron MTFDDAK256MAY 114 machines · M550 Transcend TS256GSSD370S 107 machines · SSD370S Samsung MZ-7PD256 91 machines · 840 Pro Kingston SKC400S37/256G 91 machines · SSDNow KC400 SanDisk SD6SB1M-256G 90 machines · X110 Micron MTFDDAK256TBN-1AR12 83 machines · 1100 Micron MTFDDAK256TBN-1AR1Z 83 machines · 1100

Quick answers

Is the CT256M550SSD1 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 CT256M550SSD1 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 CT256M550SSD1 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 CT256M550SSD1?

At the same capacity, the most widely listed alternatives are Micron MTFDDAK256MBF (123 machines), Micron MTFDDAK256MAY (114 machines), Transcend TS256GSSD370S (107 machines). The full ranked list is below.