The interface of the product is a B-type interface with rolled edges, made by riveting high-strength stainless steel hardware casing, which contains terminals. The micro 7pin mother seat belongs to the horizontal micro mother seat series. There are two pins in the middle and two pins in the tail, which are welded to the PCB board during welding. There are 7 pin pins at the bottom, which are welded to the PCB SMT board during welding. The micro 7pin motherboard supports fast charging. A regular micro USB is 5pin, with two pins for power, two pins for data, and an OTG jumper. The 7pin has two additional pins, namely power identification and transmission, which will support a higher current. The maximum value for a regular 5pin is 2A, while for a 7pin, it is 5A. The product uses materials, hardware shell: high-strength stainless steel, plastic body: environmentally friendly and high-temperature resistant LCP plastic, pins: high conductivity copper. It can withstand repeated plugging and unplugging for over ten thousand times in terms of wear resistance life.