Very good inverter, easy to use and customizable. It gives me almost 30 minutes of battery life for my server. And as it is compatible with Linux (Eaton develops opensource drivers), the control is done via the server NUT which extinguishes when battery is below 20% (of course adjustable). The Gigabit LAN interface is compatible, which was not indicated and better! I am very satisfied with all these features and power for less than 100.