NAS Drive Compatibility

Seagate 600 Pro 400GB

Enterprise SSD

Part number ST400FP0021 · 600 Pro series · 2.5" SATA SSD. If your machine is listed below, this drive is officially supported — not a forum workaround.

600 Pro2.5" SATA SSD

Part of the Seagate 600 Pro series →

Check ST400FP0021 price on Amazon  partner link

75
Compatible NAS models
75 Syn · 0 QNAP · 0 Asus · 0 TM
By vendor
400 GB
Listed capacity
Seagate
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 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

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 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 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 DS216se2-bay See its full HCL → Synology DS2411+12-bay See its full HCL → Synology DS2413+12-bay See its full HCL → Synology DS3611xs12-bay See its full HCL → Synology DS3612xs12-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 DS710+7-bay See its full HCL → Synology DS712+7-bay See its full HCL → Synology DS713+7-bay See its full HCL → Synology RS10613xs+ See its full HCL → Synology RS212 See its full HCL → Synology RS214 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 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 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 →

Same-capacity alternatives

Other drives listed at 400 GB capacity, ranked by how many machines list them:

Intel SSDSC2BA400G4 130 machines · DC S3710 Intel SSDSC2BX400G4 111 machines · DC S3610 Intel SSDSC2BA400G3 102 machines · DC S3700 Western Digital WD4000YS 89 machines · Western Digital WD4000AAKS 80 machines · Consumer Western Digital WD4000KS 74 machines · Seagate ST3400620AS 74 machines · Western Digital WD4000AAJS 74 machines · Consumer

Quick answers

Is the ST400FP0021 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 ST400FP0021 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 ST400FP0021 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 ST400FP0021?

At the same capacity, the most widely listed alternatives are Intel SSDSC2BA400G4 (130 machines), Intel SSDSC2BX400G4 (111 machines), Intel SSDSC2BA400G3 (102 machines). The full ranked list is below.