The LZ7 XTD top clear window panel gives you an uninterrupted panoramic view into your system, showing off all your hardware. This works especially well when your case is stood vertically using the LZ7 case stand.The top panel features a single row of ventilation slots along the left edge that contribute towards the 360 degree GPU exhaust ventilation for excellent thermal performance whilst gaming.This panel type is best for using with standard CPU air coolers, giving you up to 135mm CPU cooler height clearance. If you would like to use an AIO please select the Top XL-Vent Panel option.