I don't know if there are different sizes of USB flash drives but this one is 13.5mm wide and 23mm long (including the taper) for the body where the case covers. I was just bored and wanted to practice modelling some more. Found a Voronoi noise generator for Fusion 360 so yay

The v2 one has slightly thicker walls since I've had problems where the single-layered walls separated at the layer lines so now it's 0.8mm thick. Looks pretty much the same except a bit thicker.