If not available separately as a spare part, then I would probably buy a universal plug-in power supply with various hollow plugs as a set. However, it must be able to supply 24 watts (12V/2A) for the OPPO.
Hello, it's best to contact digitec support directly, they will certainly be able to help you. Otherwise, it should also be possible to use a suitable replacement power supply unit from another manufacturer without any problems.