APC MGE Galaxy 3500 power extension

Dual mains input Increases availability by allowing the UPS to be connected to two separate power sources.
Hot-swappable batteries Ensures clean, uninterrupted power to protected equipment while batteries are being replaced
Parallel-capacity capable Increases total power capacity by using multiple UPSs simultaneously.
Advanced electrical features Excellent power conditioning, very low harmonic distortion through IGBT rectifier, input power factor correction, and high efficiency
Frequency and voltage regulation Gives higher application availability by correcting poor frequency and voltage conditions without using the battery.
Automatic internal bypass Supplies utility power to the connected loads in the event of a UPS overload condition or fault.
Generator compatible Ensures clean, uninterrupted power to protected equipment when generator power is used.