NAS Drive Compatibility

Seagate 250GB

Desktop HDD

Part number ST9250421AS · 2.5" SATA HDD. If your machine is listed below, this drive is officially supported — not a forum workaround.

SeagateNAS HARD DRIVE3.5" SATA HDDSEAGATE

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53
Compatible NAS models
53 Syn · 0 QNAP · 0 Asus · 0 TM
By vendor
250 GB
Listed capacity
Seagate
Manufacturer
3-2-1 cold backup fit

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 53 machines and series — 53 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 DS1091-bay See its full HCL → Synology DS109+1-bay See its full HCL → Synology DS109j1-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 DS1511+5-bay See its full HCL → Synology DS1512+5-bay See its full HCL → Synology DS1513+5-bay See its full HCL → Synology DS1812+8-bay See its full HCL → Synology DS1813+8-bay See its full HCL → Synology DS2092-bay See its full HCL → Synology DS209+2-bay See its full HCL → Synology DS209+II2-bay See its full HCL → Synology DS209j2-bay 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 DS213air2-bay See its full HCL → Synology DS4094-bay See its full HCL → Synology DS409+4-bay See its full HCL → Synology DS409slim4-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 DS413j4-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 RS212 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 RS814RP+ See its full HCL →

Same-capacity alternatives

Other drives listed at 250 GB capacity, ranked by how many machines list them:

Samsung MZ-75E250 133 machines · 850 EVO Western Digital WD2502ABYS 114 machines · Crucial CT250MX200SSD1 110 machines · MX200 Western Digital WD2500HHTZ (VelociRaptor) 106 machines · Enterprise Samsung MZ-76E250 90 machines · 860 EVO Western Digital WD2503ABYX 81 machines · Western Digital WD2500AAKS 80 machines · Consumer Seagate ST3250318AS 80 machines · Consumer BarraCuda

Quick answers

Is the ST9250421AS officially compatible with my NAS?

It appears on the official compatibility lists of 53 machines and series — 53 Synology. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the ST9250421AS 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 ST9250421AS 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 ST9250421AS?

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.