Best RAM for the TerraMaster F4-425
By Devin Chua · Data checked by Owen Nakamura · Updated The TerraMaster F4-425 ships with 4 GB of DDR4 SO-DIMM, no ECC (1 slot) and officially takes 16 GB. What benefits from the upgrade is specific to this box: the Intel N5095 (4 cores, 2.0 GHz) hardware-transcodes and runs containers, and those, not plain file storage, are what more memory feeds. TerraMaster does not publish enough to confirm any module for it, so the modules below are listed as fitting physically but not confirmed by TerraMaster, with what it leaves unstated.
As an Amazon Associate we earn from qualifying purchases on Amazon.ca.
Want to know whether the F4-425 fits your actual storage plan? Open the NAS Builder with this model weighted.
Memory that fits the F4-425, from Amazon.ca
Fit not confirmed by TerraMaster
Physical fit for the F4-425: DDR4 memory. Every module below matches that. TerraMaster does not publish enough to confirm any of these for the F4-425 (TerraMaster does not publish the module form (SO-DIMM or DIMM); a 2-module kit; TerraMaster does not publish the slot count; TerraMaster does not publish a memory maximum), so none is listed as compatible. Check the part against your unit, or TerraMaster’s support, before buying.
How we check fit, and what TerraMaster publishes for the F4-425: F4-425 compatible drives and fit rules.
Left out as not fitting the F4-425: 90 listings (DDR5, ECC module, DDR3).
What more memory buys on the F4-425
The F4-425 takes DDR4 SO-DIMM, no ECC (1 slot) up to an official 16 GB, across 1 slot, starting from 4 GB. Whether that upgrade earns its money is a question about this exact box: the Intel N5095 (4 cores, 2.0 GHz) transcodes Plex and runs containers, and it is the containers, not the file shares, that ask for more RAM.
The F4-425 uses non-ECC DDR4 SO-DIMM, no ECC (1 slot), so a flipped bit is not corrected. That is rarely a problem in practice, but it is why DIY TrueNAS builders insist on ECC. so match the generation, the module form and the size, and standard non-ECC modules are fine. 16 GB official
Drive policy: TerraMaster locks no drive brand on the F4-425; its compatibility list is guidance, not a gate. The F4-425’s full compatibility rules.
Keep calculating
To see how much capacity is left after parity, the F4-425 capacity calculator is preset to its 4 bays and RAID types. For the F4-425, the wider basics of choosing a drive are in the buying guides, and CMR versus SMR explains why SMR drives do not belong in a RAID array. Wondering what the F4-425 can actually do: Plex, Immich, Docker, VMs? See what the F4-425 can run.
Frequently asked questions
What memory does the F4-425 use?
DDR4 SO-DIMM, no ECC (1 slot), starting from 4 GB. 16 GB official It uses standard non-ECC modules.
Can the F4-425's memory be upgraded?
Yes. The F4-425 has one slot, officially to 16 GB.
Is more RAM worth it in the F4-425?
Only if you run containers. The F4-425's Intel N5095 (4 cores, 2.0 GHz) transcodes and runs Docker well, and it is the containers, not file shares, that ask for more than the stock 4 GB.
Can I put third-party drives in the F4-425?
Yes. TerraMaster locks no drive brand on the F4-425; its compatibility list is guidance, not a gate.
Devin Chua works out which drives, RAM and NVMe cache fit which NAS model at nasdrives.ca, and what the RAID choice means for usable capacity, checked against what is in stock on Amazon.ca.
Data checked by Owen Nakamura, Technical editor (data checking)