The is not a specific device model, but rather a reference to the PCB material and safety rating used by many different manufacturers . "HannStar" is the board fabricator, while "MV-4" and "94V-0" indicate the circuit board's flammability and material standards.
While features vary, boards labeled with this standard typically share these "General Purpose" industrial or laptop specs: HANNSTAR J MV 4 94V 0 SCHEMATICS hannstar k mv 4 94v 0 manual