Advanced Airflow Design: Features a honeycombed mesh panel for improved air venting and 3 pre-installed fans, including dual, front-mounted blue LED 120mm fans and a 120mm rear fan, providing superior airflow. It also supports an optional CPU cooler up to 154mm in size. Upgrade Friendly: Upgrade with 7 expansion slots and capabilities to support graphics cards sized up to 380mm. Attach a water-cooling radiator up to 240 mm long to the top of the case for maximum temperature control. User-Friendly Configuration: Designed with innovative top-mounted I/O panel with dual USB 3.0 ports and USB 2.0 ports, plus audio and mic jacks.