It lacks virtually nothing for an entire machine except the HDMI cable, network cable and a keyboard / mouse. Used as a media center with a keyboard / pad Logitech K400 recognized immediately, it is a pleasure. Except on very large HD files in 1080p (around 15GB of) reading is fluid. The fixation on the case back can hide the B + behind the screen, and 4 USB ports allow the use of a pad, an external HDD and a wifi dongle in addition to wireless keyboard / mouse. Also good point for the card containing various useful OS. The ideal is still to make a copy on hard drive, the other OS fading after it has started installation.