S300 TG Mid-tower case comes with one tempered glass panel on the left, one preinstalled 120mm standard fan at the rear, supporting motherboards up to ATX. Thermaltake S300 Tempered Glass Edition Mid Tower Chassis S300 Tempered Glass Edition mid-tower chassis combines sophistication and elegance and is built with modern steel construction. Like the S500 TG, the S300 TG is designed to be compact and is manufactured with one tempered glass window on the left for a stunning view and one preinstalled 120mm standard fan at the rear for fundamental ventilation. Furthermore, it incorporates a full modular design, vertical radiator & GPU mount, Patented Rotational PCI-E slots, and the support for 200mm fans. The flexibility is limitless for high-end components. The S300 TG Mid Tower Chassis is a great fit for users who are looking for a modern and stylish chassis. TT Premium To continue achieving the corporate mission of delivering the perfect user experience, Thermaltake developed “TT Premium” with the essence of combining supreme quality products with a new logo design. TT Premium is far more than just a guarantee of quality. Behind the name, it represents the passion in DIY, Modding and Thermaltake’s desire to be the most innovative brand in the PC hardware market. To satisfy the demand of the high-end PC users, TT Premium follows its core values of Excellent Quality, Unique Design, Diverse Combinations and Boundless Creativity to provide a high performance PC product for every enthusiast. Tt LCS Certified Tt LCS Certified is a Thermaltake exclusive certification applied to only products that pass the design and hardcore enthusiasts standards that a true LCS chassis should be held to. The Tt LCS certification was created so that we at Thermaltake can designate to all power users which chassis have been tested to be best compatible with extreme liquid cooling configurations to ensure you get the best performance from the best features and fitment.