I am using this adapter with several devices such as Line6 HX Stomp, analog pedalboard, Boss Cube 2, Boss RC 505, etc without any problem. I connect it to my powerbank, Anker PowerCore Essential 20000 to power my devices individually for hours and hours without any noise. The DC plug is compatible with both 2.1mm and 2.5mm center negative devices meaning that no additional cable adapter needed.
If you are planning to use it for USB power adapters, it can be noisy but didn't experience any noise with powebanks.