@bibenu thank you: ordered a longer cable on the basis of the info provided here.
Will report back on success for others interested.

Hi team/community,

Please know I really like this device!
Just one issue I want to raise, find a solution to, and maybe something that can be changed for future buyers.

Essentially, I'm looking for recommendation of specific alternative power supplies (or at least the DC-USB cable) - I don't want to damage my unit so would appreciate the team's insights and/or user experience.

My modest set-up is based on a standing desk.

With this, attempts to power the unit via USB ports available on my desktop come at a cost of noise - I've tried multiple ports and I understand that this can go hand-in-hand with USB power: ground loops etc. This noise disappears entirely when powered via the adaptor, but given the length of cable available, I have to bring an extension cord up and on to the desk to achieve silent operation.

The included power supply is among the shortest I've ever seen (1m maybe?): can anyone recommend a 2m or 3m equivalent? My set-up may not be the most commonplace but I have to imagine that this would be an issue for gigging musicians too: the cable wouldn't reach the ground from a keyboard stand.

I have a lot of positivity for this device and it's potential - just something I want to work around and maybe give feedback on this very minor but hopefully solvable issue.

Thanks,
Ross