A pen-type computer peripheral device includes an elongated housing containing a PCBA having a plug connector. The PCBA is secured to a positioning member that is actuated by way of a press-push button that is exposed through a slot defined in a wall of the housing. A spring-loaded mechanism includes a spring and a locking mechanism that locks the connector in a retracted position and a deployed position, and the spring biases the connector from the retracted position to the deployed position, or vice versa.