NAS Drive Compatibility

Seagate 750GB

Desktop HDD

Part number ST9750420AS · 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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60
Compatible NAS models
60 Syn · 0 QNAP · 0 Asus · 0 TM
By vendor
750 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 60 machines and series — 60 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 DS1141-bay See its full HCL → Synology DS115j1-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 DS213j2-bay See its full HCL → Synology DS214se2-bay See its full HCL → Synology DS216se2-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 DS412+4-bay See its full HCL → Synology DS413j4-bay See its full HCL → Synology DS414slim4-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 RS212 See its full HCL → Synology RS214 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 750 GB capacity, ranked by how many machines list them:

Seagate ST3750330NS 161 machines · Seagate ST3750528AS 146 machines · Samsung HD753LJ 138 machines · Western Digital WD7501AALS 138 machines · Western Digital WD7502ABYS 121 machines · Seagate ST3750640NS 121 machines · Western Digital WD7500AYPS 121 machines · RE2-GP Western Digital WD7500AYYS 121 machines ·

Quick answers

Is the ST9750420AS officially compatible with my NAS?

It appears on the official compatibility lists of 60 machines and series — 60 Synology. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the ST9750420AS 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 ST9750420AS 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 ST9750420AS?

At the same capacity, the most widely listed alternatives are Seagate ST3750330NS (161 machines), Seagate ST3750528AS (146 machines), Samsung HD753LJ (138 machines). The full ranked list is below.