DIY NAS / Router in 3-bay hot swap enclosure

DIY NAS / Router in 3-bay hot swap enclosure


A 2-bay, low power, ARM-based NAS and router. The project repository is here.

The enclosure is an Athena Power BP-SAC2131B 3.5” HDD Hot-Swap Backplane Module. This is a a 3-bay hot swap backplane intended to go into two 5.25” bays of a server. This is not a trayless backplane, the hard disks must be mounted using four included screws.

This is a 3-bay case, but I only need the top two bays for hard drives. In the bottom bay I will put the computer that runs the NAS. Something like a Pico-ITX or 3.5” SBC computer will fit within the footprint of a hard dive.

The main problem with using an internal enclosure as a case is that all the SATA connections ago out the back of the case, not internal for connections to a computer.

Luckily there is a slot on the back of the case. Using something like these very thin blue SATA cables, I can connect an internal computer to the back of the case

  • Cost less than a cheap commercial 2-bay NAS (~$200)
  • Low power
  • NAS for local file sharing
  • A limited router to segregate scary “smart” devices on the LAN
  • Maybe run some IoT things

DIY NAS / Router in 3-bay hot swap enclosure – [Link]

Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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