Eco-friendly, EPEAT Gold certified Philips 225B2 business display with intelligent Power Sensor detects user presence & adjusts power consumption saving up to 70% on energy bills! Smart Power is an artificial intelligent technology which dynamically analyzes the content of the screen image to achieve power saving. The backlight intensity can be controlled automatically & pre-set by the system to reduce the power consumption by up to 50%, which saves substantially on energy costs. At the touch of a single on/off button which is conveniently located at the back of the monitor, the monitors energy consumption is reduced to zero. In the off mode, the monitor is completely cut off from AC power & thereby reducing your carbon footprint even further.USB hub allows user to conveniently connect their plug & play multimedia devices such as USB (Universal Serial Bus) memory devices, camera, portable HDD, web camera, PDA, printer & many other devices which have USB (Universal Serial Bus) connection available. The conveniently located USB (Universal Serial Bus) 2.0 hub on the monitor allows USB (Universal Serial Bus) 2.0 signals to pass through to the computer.