SSD Cache functionality using USB3 attached external hard drive

USB 3.0 as a cache for TS-431XeU

Please let me approach you with an easy and simple question. I’m considering buying TS-431XeU-2G, however, I would like to know if I can use for SSD Cache functionality a USB 3 attached external hard drive (let’s say an M2 drive in an external enclosure), because all 4 bays I want to use in “standard = cold data” way as a storage.

Neither Synology nor Qnap will let you use externals drives for caching. SSD needs to be installed in one of the following methods:

  • HDD Bays
  • M.2 slots on the motherboard
  • PCI card
  • Expansion unit drive bays

So TS-431XeU won’t let you install SSD for caching in any other way but in HDD bays.

If you need a cache – consider any rackmount with PCIe slot.

Few options:

  • ts-432xu
  • ts-453bu
  • ts-463xu

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