Minimized Dimensions for Standard ATX - The MasterBox Q500L supports standard ATX motherboards and PSUs, with a body depth and height of only 386 x 381mm. Fully Perforated Chassis - The top, front, rear, and bottom panels are fully perforated to offer airflow for various fan configurations. Movable I/O Panel - Orientation for the chassis is versatile, with the option to move the I/O Panel to 6 different locations. Vertical and Horizontal Position - The case can be oriented vertically or horizontally while retaining easy access to the I/O. Rubberized screws also function as feet to supplement different orientations. Vertical PSU Placement - The PSU is positioned on the front of the chassis to fully utilize internal space. The bracket can be relocated to offer position options depending on preference and form factor.