Belkin Products are perfect for the Small Office/Home Office (SOHO) environment, these devices are designed to protect data and equipment against lightning, surges, spikes, sags, brownouts, and other power disturbances. The Home Office UPS features 8 surge-protected outlets, and 4 of them provide battery backup. The Serial Communication Port - offers faster communication through serial (RS232) port, along with expandability and easy installation. The Sentry Bulldog Shutdown Software manages computer shutdown in the event of a power failure and provides diagnostic support.