One embodiment provides an apparatus, including: a housing including: a compartment; the compartment having a panel and two side walls accommodating removable computer modules; the apparatus including a movable component that slides away from the compartment to reveal an inside of the compartment; the compartment including power and data connectors for coupling to the removable computer modules; where power is removed from the removable computer modules responsive to sliding away the movable component. Other aspects are described and claimed.