The HAPS case, Synplicity's High-performance ASIC Prototyping System is a 19”, 3 HU (132.5 mm) mechanical housing for single or stacked HAPS boards, with room for daughter boards and user subsystems. Larger cases are available on request.

The case protects a finished prototype by eliminating the need to have physical access to the HAPS board itself. Powered by 100 – 240V, it provides 5V power to the HAPS motherboard, any user subsystems and fans.

A set of I/O units are available on the front panel for use by the design running on HAPS.