Is the latest version '3v'?
Erm, yes, I believe it is . . . In fact, I'm quite
sure it is. (If my muddle-mind is still malfunctioning, I know
Zarjaz will provide the necessary correction.

)
Not having seen a "3V" in real life, I'll say that I believe they come with a white, not black, PSU.
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100% Linux and, previously, Unix.