I want / you describe to you here my experience with the 60W (12V, 5A) power supply NT03012 of Leicke.
These I use as a fuel-efficient power supply at a McGrey Bluetooth amplifier.
It Eigent with its 5.5 * 2.5mm plug for example but also excellent for NAS systems (eg my Synology DS214Play), router or monitors.
It comes with the power supply unit is equipped with a removable power cord and laudably even a tote bag made of microfiber.
Both the power cord with 120cm and the 180cm cable with good are sufficiently dimensioned.
The Euro-power connector is very compact and thus well suited for close multiple sockets.
Even to a Velcro cable sorting the connecting cable has thought Leicke.
The transition from the power supply to the connecting cable is reinforced yet flexible.
This is a good solution and, for example, important if you often times have to move the cable / adapter.
The power supply has a maximum lukewarm in my operation so far and does not generate audible noise.
The standby power consumption (measured with a Brennenstuhl meter) and thus even below the manufacturer's specification at incredibly low 0.2 watts.
In sum, I can therefore highly recommend this PSU
It is very economical and good quality processed.
The value for money I think is very good.
I hope this review could assist you in your buying decision ...