King Office is applied for the power protection of multiple computer equipments; one device can be functioned to protect a number of equipments at the same time: PC, telephone, cord of fax machine, the Internet, printer, multi-media units, and other office appliances. In addition, one UPS device can be incorporated with multi-units, including UPS, Surge Protector, Rectifier, Charger. It can be lay down or set straight on the ground or hung on the wall according to the users need. Its slim size is convenient to place and easy to install.