The figure below shows the housing internal structure and some of the basic
system components.
Power Supply
Expansion Slot
Expansion Card
Housing Fan
Brackets
Backplane Board
Hot-Swap Cage
(SCSI)
5.25-inch Drive Bays
3.5-inch Drive Bay
Power Switch
Power LED
Hard Disk Drive LED
System Status LED
Removable Hard Disk
Drive Trays