Stacked Raspberry Pi's with common power

From CaveLab
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Four Raspberry Pies stacked in acrylic case. With common power supply.

In the early days of the homelab I experimented with using a common 5 V power supply for all my Raspberry Pies. I later switched back to using individual AC adapters, it was just easier. But I am playing with the idea of revisiting this in the future, using a computer power supply. That will provide both 5 V for embedded devices, and 12 V for my stack light.

Gallery

Parts used

Qty. Part
0.5 m DIN-rail, 500x35x7.5 mm
2 × microSDHC card, Samsung, 32GB, class 10, 48MB/s
1 × microSDHC card, Samsung EVO, 32GB, UHS-1, 100MB/s
1 × microSDHC card, Samsung EVO+, 32GB, UHS-1, 80MB/20MBs
2 × Mounting bracket, DIN rail, Plastic
4 × Power jack adapter, USB micro, 10 cm wire, 2.1mm x 5.5mm
1 × Power jack adapter, USB micro, right angle, 2.1mm x 5.5mm
5 × Power jack, w/wire, male, 2.1mm x 5.5mm
1 × Power supply, 5 V=, 20 A, SMPS
1 × Raspberry Pi 1 Model B+, 700MHz ARM CPU, 512MB RAM
4 × Raspberry Pi 3 Model B, 1.2GHz Quad 64bit, 1GB RAM, BT, WLAN
1 × Raspberry Pi case, Black, MC-RP002-BLK
1 × Raspberry Pi stack case, Acrylic, 4 layers
16 × Spacer, round unthreaded, 3mm, Ø6mm, Delrin