Circuit board assembly

A circuit board assembly comprising:

• a first circuit board comprising at least one connector socket;
• a second circuit board comprising at least one connector plug capable of mating with the at least one connector socket;
• and
• a handle assembly comprising a base member fixed on either the first circuit board or the second circuit board, a first rotating member, a second rotating member, and a latch member;
• and the first rotating member and the second rotating member are pivotably attached to opposite ends of the base member and rotatable along opposite rotation directions;
• wherein when the first rotating member and the second rotating member are rotatable between a locked position to a unlocked position, in the locked position, the at least one connector plug is engaged with the at least one connector socket, and the second rotating member is latched by the latch member;
• in the unlocked position, the at least one connector plug is disengaged from the at least one connector socket, and the second rotating member is released from the latch member.