This is serious it shows on. Quiet fans, one rear and one front, considering the price would have been a third. 2 external 5.25 'plus a third that allows insertion of a DD 3.5 "ATA sérial live is great. Inside a rack 4 x 3.5 "removable easily if you have a very long graphics card and a rack 3 x 3.5 fixed. SD clips are by small mini rails with silent block. An adapter for SD 2.5 is site leisure facilities. Three holes for fans of water cooling. The power supply is fixed at the bottom of the tower and is based on fan silents block down, a grid anti dust is below to see efficacitée ... Small-site leisure washers and sound insulation plate for ventilos. On the front panel behind the door (soundproofed) a removable filter in which one can put the media (hood type) to really filter. On the edge taken over the following 1 USB-3, 1 USB-2 headphones, microphone, SD card, bt bt reset and power, plus a USB-3 would have been nice but ... For USB 3 Port-taking must be connected to a rear USB-3 from the motherboard and thus taking it out by one of the orifice for water is THE black spot of the beast (d 'or the star)! The must have been connected to a USB-3 internal card. Internal cards are fixed by the eternal screw on my old same brand they had a system of convenient plastic clips that have been taken and the flanges of the fixing screws (soundproofed) aside. Attention to the height of the cooler to the casing is 154mm, I put a Cooler Master 212EVO (with a Core I5) 159mm AC pass but the max! ATTENTION! the power supply is optional in the photos shown on see a PSU 600w. Cala can be confusing what happened to me of course! I had to order a PSU after shots ... Question silent attention to the quality of cooling equipment mounted ... Good sober hardware of a beautiful black satin well above average, but do it anyway attention to the front door in glossy black plastic if you want what remains! ... Lovers of light towers and other spending your way!