The Smart-ups Srt 3000VA On-Line 2700W with 6 IEC Outlets from APC is a Tower UPS. It features 6 IEC type outlets (like those of computer power supplies) as well as an input and output for an ethernet cable, protecting the devices connected to it, e.g., a router (provided their power supply is also connected to the UPS or a surge protector). Its operation is (VFI) On-Line/Double Conversion, which continuously supplies power from its battery, protecting against voltage fluctuations and power outages. Its battery can last 11 minutes at half load or 4 minutes at full load (when the connected devices draw half or the maximum current the UPS can provide, respectively). It offers pure sine wave power, which is suitable for sensitive devices (e.g., medical equipment) and is preferred for devices with power supplies that have active PFC protection (e.g., computers).