An apparatus is provided which comprises: a chassis compartment having a bottom surface and walls orthogonal to the bottom, wherein the chassis compartment comprises: a rectangular opening, which may be designed to accept a microelectromechanical (MEMS) device and four slots, which may be designed to accept one or more magnet(s), extending outwardly from the rectangular opening, wherein each of the slots comprises: an inner opening having a length coextensive with a side of the rectangular opening, and an outer opening having corresponding ends that extend a length of the outer opening beyond the length of the inner opening. Other embodiments are also disclosed and claimed.