Cover set
Provided by the ASK Keyboard Dictionary
Aka/also known as: case, casing
A keyboard cover set is the outer structural casing of a keyboard. Typically they're referred to as a "case" or "casing", but "cover" specifically refers to the casing that the keyboard is supposed to be used in (as opposed to packing material or storage mediums like hard-shell cases, travel cases, fabric sleeves, etc.) "Set" refers to the fact keyboard cases are typically multiple parts, usually two - a top and a bottom cover.
