NAS Drive Compatibility

Silicon Power A55 128 GB

Consumer SSD

Part number SP128GBSS3A55S25 · A55 series · 2.5" SATA SSD. If your machine is listed below, this drive is officially supported — not a forum workaround.

A552.5" SATA SSD

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12
Compatible NAS models
0 Syn · 0 QNAP · 12 Asus · 0 TM
By vendor
128 GB
Listed capacity
Silicon Power
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 12 machines and series — 12 Asustor. 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

Asustor AS 33 See its full HCL → Asustor AS 33 v2 See its full HCL → Asustor AS 52/53 See its full HCL → Asustor AS 54 See its full HCL → Asustor AS 65 See its full HCL → Asustor AS 65R See its full HCL → Asustor AS 66 See its full HCL → Asustor AS 67 See its full HCL → Asustor AS 68 See its full HCL → Asustor AS 71 See its full HCL → Asustor AS 71R See its full HCL → Asustor AS5004U See its full HCL →

Same-capacity alternatives

Other drives listed at 128 GB capacity, ranked by how many machines list them:

Micron MTFDDAK128MBF 123 machines · M600 Micron MTFDDAK128MAY 114 machines · M550 Crucial CT128M550SSD1 114 machines · M550 Transcend TS128GSSD370S 107 machines · SSD370S Samsung MZ-7PD128 100 machines · 840 Pro Kingston SKC400S37/128G 91 machines · SSDNow KC400 SanDisk SD6SB1M-128G 87 machines · X110 SanDisk SD7SB6S-128G-1122 80 machines · X300

Quick answers

Is the SP128GBSS3A55S25 officially compatible with my NAS?

It appears on the official compatibility lists of 12 machines and series — 12 Asustor. Every machine page linked below shows the vendor's own list entry, refreshed daily.

Is the SP128GBSS3A55S25 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 SP128GBSS3A55S25 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 SP128GBSS3A55S25?

At the same capacity, the most widely listed alternatives are Micron MTFDDAK128MBF (123 machines), Micron MTFDDAK128MAY (114 machines), Crucial CT128M550SSD1 (114 machines). The full ranked list is below.