Prodnxt Impulse - Energy Saver for Computer/TV universal 4 socket with USB Surge Protector,Extension Board Supports 4 USB Amp 5 A Three Pin Socket

Male to Male USB Cable Free.It acts as an intelligent control device which detects the state of the computer/ TV. Based on the state of computer/TV, it then proceeds to act as a power control unit to cut off the power supply to the peripheral devices (printer, scanner, speaker, amplifiers, monitor etc.) when the computer is in a passive state (shutdown, sleep, hibernate) and wakes the peripheral devices when the computer is turned on.It does for us what we tend to forget after we switch off our TV or keep the computer in a sleep mode - switches off the devices automatically, and thereby saving precious electrical energy and the freshness of the devices and It is essentially a simple, energy-saving extension cord device which can be used in conjunction with a computer or a USB-enabled TV.