Self assembled aluminium lightweight cases with integrated switched power busses.
At least 1Amp per -/+ 12V rail per row with quoted 100mV ripple noise at max load. No 5V rail.
Overload & Short Circuit protection.
Support modules up to 42mm depth (approx 2 stacked pcbs). All ALM modules fit.
M3 threaded fixed mounting strips (no sliding nuts!).
Includes 12v external DC/DC power 'brick' with center positive 2.1mm barrel and at least 2 or 4 Amp rating (depending on model).

https://busycircuits.com/products/alm-cs003