If you're passionate about IT and electronics , like being up to date on technology and don't miss even the slightest details, buy Uninterruptible Power Supply System Interactive UPS Riello VST 1100 at an unbeatable price. The Riello VST 1100 is an interactive UPS designed to provide reliable and versatile protection in environments that require keeping critical electronic equipment and network peripherals operational. With a 1.1 kVA output power capacity and a usable power of 880 W , this model offers adequate coverage for computer systems, standard servers, and backup devices. Its sine wave output ensures stable power compatible with sensitive devices, while the output frequency regulation between 50 and 60 Hz guarantees precise matching with electrical standards. It operates within a wide input voltage range, from 162 V to 290 V , allowing it to tolerate network fluctuations and effectively protect against surges and drops. This UPS uses VRLA (Sealed Lead Acid) battery technology, providing a typical backup time of 9 minutes at full load and a recharge time of about 6 hours . It features 4 AC C13 outlets with C14 connectors, a USB 2.0 port for communication and monitoring, plus RS-232 and modem (RJ-11) ports for integration with management systems and line protection. Its compact grey design measures 120 mm wide, 247 mm high, and 443 mm deep , weighing 11.3 kg , facilitating installation in both home and professional settings. Noise level is kept to 40 dB , making it suitable for offices and quiet environments. The Riello VST 1100 includes multiple protection functions such as battery discharge, overvoltage, overheating, overload, short circuit, and undervoltage protection, supporting the safety and stability of connected devices. It is certified under EN 62040-1-1 and EN 62040-2 standards and complies with European directives 2006/95/EC and 2004/108 EC , ensuring recognized quality and electrical safety standards. It supports operating c