The Suppressor F31 Tempered Glass Edition mid-tower chassis features a durable 4mm thick tempered glass window, riser GPU support bracket with optional PCI-e riser cable, a preinstalled 140mm Riing Blue fan, leading-edge sound reduction panels on all sides, and its outstanding system ventilation. With the unparalleled expandability for high-end configurations and liquid cooling system, the Suppressor F31 supports the latest PC hardware, and all high-end GPU solutions. Thermaltake Suppressor F31 demonstrates the perfect balance in silent operation and cooling performance. The tempered glass features 4mm thickness that guarantees the durability of the window. Moreover, the enlarged window design permits users to fully display and admire all components of the liquid-cooling system. Show off your dedicated set in the subtlest manner! The Suppressor F31 comes with fully modular drive cages that provide the ease of installation/removal and maximize the interior space for custom cooling loop. Especially, the tool-less drive bay design allows users to freely interchange the 3.5” and 2.5” hard-drives to suit their particular needs. The dual drive bay concept of “2+3” offers a good ratio for accessories and storage devices.