Works very well on ITX Celeron J3355 motherboard
Capable of powering much more than I ask of it.
It powers a Celeron J3355 motherboard, 4GB of DDR3, a 32GB SSD, and a PCIe x1 Gigabit network card.
Nothing heats up, neither the power supply nor the power supply unit.
Knowing that my config draws ~20W max, it's perfectly normal, and what I wanted.
The most complicated thing is to find the external power supply (not in stock at LDLC at the time of purchase).