According to the labelling, that power supply should work.
However, it’s lacking both the CE and UL Listed mark which means it was neither tested nor approved for sale and use in the European market and also not for sale and use in the USA and Canadian markets.
This basically means that there’s no way for you to know that this device does what the labelling says and there’s also no guarantee that it’s built according to the appropriate safety standards.
Even when a power supply you order directly from China does carry these marks, there’s no guarantee that the device actually conforms to the standards required for those marks.
Mains power is not something to dick around with. A badly designed or built power supply is a fire hazard and you really don’t want to risk a defect inside the power supply causing your Digitakt to suddenly receive mains power.
EDIT: This is the reason why so few devices use internal power supplies these days. As a synth manufacturer it’s much easier to order a good PSU from a respected Chinese manufacturer that has already gone through the required certification processes than it is to build a PSU into your device and then have to get your whole device tested and certified for sale.