Don't buy it, it buzzes/buzzes when used with distortion directly and in chain.
I tried 4 power supplies:
AD16E doesn't buzz, it's good.
The power supply, which is 20 years old, does not hum, it is good.
RockPower Power Supply RP NT 22 EU makes a lot of noise and is bad.
Thomann NT 0910 AC/PSA makes a lot of noise and is bad.