Rack U for Bugbrand modules

[Jd1979]

I’m looking at purchasing a new Bugbrand system and was wondering if anyone knows how many rack “U” Bugbrand modules are?

[BananaPlug]

It's Frac format. Module widths are multiples of 1.5" and vertically the modules are 5.25" (3u) but the mounting holes (and therefore the rails) are closer together than euro.

[Jd1979]

It's Frac format. Module widths are multiples of 1.5" and vertically the modules are 5.25" (3u) but the mounting holes (and therefore the rails) are closer together than euro.

Thank you so much for your help.