BLHeli_32 3220 70A 4 IN 1 ESC

The AT32F421 main control chip operates at a frequency of up to 128MHz. Imported MOS from Japan, three in one IC drive FD6288Q drive, imported high-quality Murata capacitor, using high-end resin plug hole PCB production process, dual pad design, all using metallized edge wrapping to prevent pad detachment during use; 2 oz copper thick, 8-layer plate, greatly reducing heat generation and improving efficiency.