The PIKO BLX flight controller mounting hole is 20x20mm hole to hole dimension.
This power distribution board is designed to mount the PIKO BLX flight controller on this board and then mount the PDB board onto the big frames with typical 30.5×30.5mm mounting flatform.
Dimension: 30.5×30.5mm hole to hole, 36x36mm overall
Max Current rating: 150A
Connect PDB PIKO with PIKO