If you are a lover of computer science and electronics , you like to stay up to date with technological news and you do not miss any detail, buy the Riello VST 800 Interactive UPS at the best price. Voltage: 240 V 220 V Lc IEC noise level: 50 dB 40 dB Power: 800 VA 540W 800 W Type: Tower Interactive UPS C13 Plug-in Product: Yes Plug Type: EU Nest Technology: LCD VRLA Charging time approx.: 6 hours Color: Black Product width: 120 mm Links: RS-232 C14 x 1 AC x 4 USB USB 2.0 x 2 C14 Frequency: 50/60 Hz 50 - 60 Hz Features: LCD screen Interactive