Omnigrid™ is HIPER patented aviation style Modular connection system, it is one of the major features of HIPER Type R series.

Omnigrid™ 1st generation has the screw-lock mechanism, used in HPU-4B580, HPU-4K580, HPU-4R580, HPU-4S580.

Later, HIPER developed Omnigrid™ II that has much more convenient "quick lock and release" mechanism, used in HPU-4S730.