Create a system that looks intentional from every angle and performs like it. The Thermaltake Tower 300 Hydrangea Blue keeps the Tower series’ vertical footprint while shifting to an octagonal prism design that gives high-end components room to breathe. It is built for builders who want a compact chassis without giving up thermal headroom or visual impact. This case supports a 4090 GPU, a standard power supply up to 220 mm, and a 420 mm AIO radiator, giving you the clearance needed for premium parts rather than compromise builds. Fan support extends to eight 120 mm or 140 mm fans across the top, back, PSU cover, and right-side fan bracket, so airflow can be tuned for quiet operation or sustained load. For teams and enthusiasts who care about presentation as much as performance, the Tower 300 offers a platform that can anchor a showcase workstation, a high-end gaming rig, or a client-facing demo system. Optional LCD expansion support adds another layer of customization for environments where the chassis itself is part of the experience.