Home / Computers / Even the 5-bay F5-422 seals its DDR3L RAMComputers Technology ramseeker nasEven the 5-bay F5-422 seals its DDR3L RAMThe F5-422 has 4GB of DDR3L soldered on board with no upgrade slot. The 5-bay form factor suggests a serious NAS, but the memory configuration locks you in. Shop NAS drives on Amazon As an Amazon Associate, Work Notes may earn.Related NotesTerraMaster F2-221 — a fixed 2-bay NAS, no expansion pathTerraMaster F4-421 — four internal bays, no PCIe or external expansionTerraMaster F8-421 — eight SATA bays, no PCIe or external expansionThe TerraMaster F2-223 has one upgradeable RAM slotThe TerraMaster F4-423 expands via USB 3.2 Gen 2ExploreThe Synology DS1621+ uses SATA drives with NVMe reserved for cachingThe Synology DS423+ pairs SATA drives with NVMe cache-only slotsThe TerraMaster F8-421 sticks to SATA drives with no NVMeThe TrueNAS Mini X+ sticks with SATA-only drive baysThe Synology DS1522+ separates storage from caching with SATA and NVMePrevious Febreze Fade Defy Plug handles dog smell and glitter-glue chaos — clean linen without maskingNext Eufy X12 Pro Omni handles pet hair fine — but the dustbin fills fast