This is the front, the DVD Writer is concealed in a bay door just like the F117.
The back is not concealed for ventilation. It has an additional exhaust fan in PCI slot if you can see it and sleeve fan mounted at the back plate. The 4 USB ports can be seen from here of the Asus Mobo.And this is the reason why its cool. Its blue, just like my Habu and Reclusa.