Stepwave Line-interactive, Cost effective and Intelligent UPS 350 - 1000VAThe Digital Energy ML Series is a pluggable, line interactive UPS offering cost-effective protection against mains power disturbances and failures. The range extends from 350VA to 1000VA, allowing you to protect a single PC or multiple workstations and peripherals. All models have an intelligent communication interface. PowerFLAGTM automatic shutdown software for most major operating systems is bundled free of charge.