Operation confirmed AC adaptor list

Distributormodelspecificationconditionwho confirmednote
Mouser ElectronicsWSU060-4000 (Mouser Part #:553-WSU060-4000)6V 4Awithout Raspberry PiSwitchScience, Inc.There is a Failure Report on Rapiro Forum.
DigikeyWSU075-4000 (Digikey Part #:237-1627-ND)7.5V 4Awith and without Raspberry PiSwitchScience, Inc.Rapiro without a Raspberry Pi is OK, but sometimes doesn’t work with a Raspberry Pi.
DigikeyKTPS36-0940DT 3P (Digikey Part #:62-1170-ND)9V 4Awith and without Raspberry PiSwitchScience, Inc.

disclaimer: Pleaes use this list as guidance but be aware that it does not always work, also the condition of adaptors will always change by the circuit or a software.