The SMART1500 is a 6-outlet SmartPro Line-interactive Uninterruptible Power Supply (UPS) offers up to 20 minutes of backup runtime for a half load, in a small-footprint tower format that fits easily on or under a desk. Plus, USB and DB9 ports allow you to remotely monitor and manage your network from anywhere-keeping you in control and your equipment on-line. It protects servers, networking accessories and telecommunications equipment from blackouts, voltage fluctuations and transient surges. Large internal batteries offer 20minutes half load runtime and 7minutes at full load during power failures. Includes a total of 6 outlets, 1 of which can be individually powered on and off via software interface to selectively reboot remote equipment or to automatically shed less significant loads to extend battery runtime for more critical equipment. Built-in audible alarm and 5 front panel LEDs indicate status of line power, battery power, battery low/replace, voltage regulation and load level.