Top, sides and front panels are removable to ensure unrestricted access from all sides and the mirror-finish stainless steel removable motherboard tray enables you to build your system outside with ease and then slide into the chassis. Six easily accessible I/O ports mounted on the side of the front panel include HD Audio and eSATA. The inside of the front door is recessed enabling installation of 5.25” devices with extended dials or control knobs (i.e AK-FC-03). An internal mounting bracket secures the PSU and prevents any vibration.