Compared with the micro-miniature, the standard plug diameter is expanded to 25mm, which can support more cores, up to 16 cores. The mounting thread can be customized in a certain range.

The standard watertight connector structure consists of snap ring, locking sleeve, female head, male head, O-ring, gasket and nut. At present, there are 2, 3, 4, 5, 6, 8, 10, 12 and 16 pins in this structure.