From left to right.
First there is a power socket connected to 72Watt PSU, down there are two small 220V GPIO / relay controlled sockets. Next is gigabit fiber optics convert which is at the moment wired to router and router is wired back to Orange. I am planning to add one more ARM board which will operate as router - Olimex Lime. Next to the fiber converter is 12V to 5V converter with 4 x USB charger (1-2A), down from converter is a power and I2C concentrator (home made) + audio amplifier 2 x 3W, down 3T hdd, than Orange Pi, then BMP180 sensor for measuring inside box temperature, than there is additional Ethernet panel for future olimex board, than light meter. There are two PIR sensors attached to wires. One is looking strait below display, one is on the right side. There are few things missing: wifi antenna, outside temperature and humidity sensor DHT22.
More details:
http://www.igorpecovnik.com/2013/12/10/micro-home-server/