Dell OEM OptiPlex 7440 / 3240 Power Button Circuit Board J7KRH is a genuine replacement component designed specifically for Dell OptiPlex 7440 and 3240 desktop models. This circuit board (J7KRH) serves as the power button assembly, allowing users to conveniently turn their computers on and off. With its precise design and compatibility, it ensures seamless integration with the system's internal components. Upgrade your OptiPlex desktop with this reliable and durable Dell OEM part to maintain smooth power functionality and enhance overall system usability.