The VFI 3000 ICT IoT UPS On-Line 3000VA 3000W with 8 IEC Sockets by Powerwalker is a Tower UPS. It has 8 IEC sockets (like those of computer power supplies) as well as an input and output for an ethernet cable, protecting devices connected to it, such as a router (provided their power supply is connected to a UPS or surge protector). Its operation is (VFI) On-Line/Double Conversion, which continuously provides power from its battery, protecting against voltage fluctuations and power outages. It provides clean sine wave power, suitable for sensitive devices (e.g. medical equipment) and is preferred for devices with power supplies that have active PFC protection (e.g. computers).