Simple yet elegant front panel with mesh & filter Optimized for performance with multiple cooling options A total of 7 fan slots 1x 120mm 1x 140mm in front 2x 120140mm in top 1x 120mm in bottom 1x 120mm in rear 1x 120140mm in side panel 6x white painted HDD trays with silicone mounting 7 expansion slots with sleek white painted brackets Easily removable front panel with clip on fan slots 6x 35 inch HDD trays compatible with SSD 2x 525 inch bays with 1x 52535 inch converter included MB compatibility Mini ITX Micro ATX & ATX The new Fractal Design Core Series offers a unique combination of design features cooling performance & value. The Core 3000 has plenty of cooling options up to 7 fans of various sizes can be installed. The front panel is easily removable & pre-fitted with fan filters to ensure a dust free interior. The sleek black interior is matched & contrasted with white expansion slots & HDD trays. Similar to the Define Series all the HDD trays are fitted with anti-vibration silicon grommets. The upper HDD cage is removable & rotatable which enables support for even the longest graphic cards. Supports graphic card lengths up to 270mm when removable HDD-Bay is in place. Supports graphic card lengths up to 420mm without removable HDD-Bay