Supermicro SuperChassis 815TQC-R504WB (black) - Rack-mountable - Black - 1U - 5 x Bay - 500 W - Power Supply Installed - WIO Motherboard Supported - 3 x Fan(s) Supported - 1 x External 5.25in Bay - 4 x External 3.5in Bay - 3x Slot(s)

Total 3 expansion slots help in upgrading the system by increasing number of hardware components Keep your critical hardware secure in a durable 1U rack-mountable casing Compatible with WIO motherboard that enables a variety of features for constructing a reliable computer system