New test cluster in progress. It will be four PoE-powered Radxa X2Ls. The extra boxes on top next to the switch are the PoE to 12V PD splitters.
Pretty proud of this one!
That’s a DIN rail mounted on top of the UCTRONICS case, which has been modified to widen the side slots to provide access for the X2L boards. Similar mods on the other side allow access to the reset buttons.The boards are attached with M2 brass standoffs to a thin acrylic layer that is attached to the original UCTRONICS removable trays.