1, the sample holder with a USB charging case subject to greater external force, resulting in so doing USB of destructive damage (including copper pads falling, breaking reinforcement pin solder joints).
1, the sample charging box USB seat has been subject to a greater external force, resulting in the USB do destructive damage (including the pad copper peel drop, reinforced pin tin break, etc.).
1. The USB base of the sample charging box is subjected to a large external force, which causes the USB to be damaged (including the copper skin of the pad falling, the tin point of the reinforcement pin breaking, etc.).