This modular origami unit behaves like the Sonobe unit and can be used to build similar shapes, but its structure is asymmetric, hence the name. Solids built from this unit have plain square faces like those made with Moreno’s unit. Assuming the paper’s side is a, the length of the folded unit’s square face is a⋅√2/4 ≈ a⋅0.35 which is slightly more paper effective than Moreno’s unit (a/3 ≈ a⋅0.33).
A simple variant of this unit exhibits a color change, giving models made from it a weirder look since the color change’s symmetry is not aligned with the symmetry of how the units are connected, thus making the pattern on the complete model non-uniform. The variant without color change has a weird structure, but the finished model looks pretty much as if made from some typical unit with symmetric structure.