The Eaton 3S550DIN is an emergency power supply for home and at a small office. This UPS with a maximum power of 330 watt protects your desktop computer or NAS against power surges and power outages. In the event of a power outage, you will have between 3 and 6 minutes to safely switch off your equipment. This prevents damage and loss of valuable files stored on your PC or network drive. The Eaton 3S550 is compact, so you place it on or under your desk. Of the 6 outputs, 3 protect against power outages, all outputs protect against current surges and overvoltage. You replace the battery of this UPS for a longer life.