I have two UD-3900 Rev B2. I bought them in Europe but now live in North America.
Power supply is made by DVE. Model is DSA-24CA-05
Power supply takes inputs of 100-240v so is fine in Europe and NA. Problem is the plug. It shipped with two sets of clip on pins - one for UK, one for Europe.
Can you ship me two sets of North American pins for my power supply?