(1)The Extended Rear Panels provide more depth and ventilation than standard
rear panels, are easily removed for quick component access, and are constructed
of heavyweight powder-coated steel. (2)The Extended Rear Panel with Active
Cooling Kit prevents heat buildup inside the cabinet. It employs a remote
thermostat and dual, maintenance-free fans for precision cooling. The
rear panels are easily removed for quick component access, and constructed
of heavyweight black powder-coated steel with ventilation louvers.