ARGB for Rear fan and I/O ports are compatible with ASUS Aura Sync, GIGABYTE RGB Fusion, MSI Mystic Light Sync, and ASRock Polychrome Motherboard Sync. The ample component clearance of the MARS M2 is capable of supporting up to five 120 mm fans & mounting slots for a 280 mm (Front) x 240 mm (Top) x 120 mm (Rear) radiator.
HDD cage: 2 x 3.5" or 1 x 2.5" +1 x 3.5" or 2 x 2.5" (HDD Cage) 2 x 2.5"
CPU cooler height limitation: 165mm
GPU length limitation: 350mm
PSU length limitation: 160mm