No, it's not computer memory. Over time, a fella is likely to collect a lot of 1/4" drive bits. I had mine in a disorganized box, some in holders, most just loose. It took far too long to find the one I needed.
A few minutes with FreeCAD and some time on my printer yielded a dirt-simple but effective bit storage solution.
Not much to it. The holes are fairly tight, so the bits won't fall out if it gets dropped or knocked over. And I still have room to grow.
A quick FreeCAD design. The base is a rectangular solid. Make an appropriate size hole (cylinder) and duplicate it over the base. Subtract the cylinders from the base. Chamfer the edges. Profit!