I'm not sure where this belongs, so sorry if it's in the wrong place.
Last week the
Blue Cubes came back in stock at Amazon (sold by Cyberguys), and I ordered two of them.
Package came today, got these instead:
Which look exactly like
these. Reviews look alright, it has two ports, and the form factor is better, so I'll probably keep them, but my point is - don't order a Blue Cube right now from Cyberguys and expect to get a blue cube-shaped adapter.
Edit: typing this edit out on my Model M right now, adapter works just fine.