N500
Full mesh on the front panel
Supports a 240mm liquid cooling radiator or two 120/140mm fans at the top
Supports a 120mm liquid cooling radiator in the rear
Supports high-end graphics cards up to 405mm / 15.9 inch, including NVIDIA GTX 690 & AMD HD 7990
Supports up to 4 SSDs (3 in the removable SSD cage, 1 at the bottom of HDD cage)
Dust filters at the top and under the PSU for easy maintenance
Top tray for placing personal belongings
Super Speed USB 3.0 Support (KKN1 / KWN1); Dual USB 3.0 Support (KKN2 / KWN2)
Includes two SickleFlow 120mm fans (no LED) arranged for optimum airflow in the front and rear with support for up to 9 fans (KKN1 / KKN2) / 7 fans (KWN1 / KWN2)
Large side panel window (KWN1 / KWN2)
Can install two optional 120mm fans on the left side panel to cool the graphics cards (KKN1 / KKN2)