The Xpredator X3 offers eight expansion slots, graphics cards as long as 310mm, CPU coolers as tall as 186mm (without fans in the side panel), eight 3.5"/2.5" drive bays, three 5.25" devices (one convertible to 3.5"), up to nine fans, a front I/O panel with two USB 3.0 ports, two fan controller knobs with up to 25W per channel, and a case window. You can find more specifications and photos at AeroCool's website.
AeroCool Xpredator X3 features:
Solidly constructed chassis interior (0.7mm SPCC). Supports CPU cooler max. height up to 186mm(without fans on side panel). Supports Long VGA Cards up to 310mm. Includes 1 x 12cm Black fan at rear and 1 x 20cm LED fan in front. Top panel flaps can be opened or closed to control air flow more efficiently. Dust filter for PSU . Includes 1 x external 2.5" HDD docking on top panel for easy access. Includes two fan controller knobs each controls fan/s up to 25W. Install up to 9 fans! Includes antivibration pads for HDDs and PSU. Cable Routing Management holes with high-end rubber grommets to protect your cables. Pre-drilled CPU holes for easy mounting and removable of CPU cooler. Support water cooling. 2 x USB3.0 and Audio/Mic ports are easily accessible from top panel. USB3.0 >USB2.0 adaptor included.
Source: TechPowerUp