Allied telesyn international offers an optional load sharing power supply for MCR12 chassis to eliminate down time on the network. Features Device Type - Power supply - hot-plug / redundant Voltage Required - AC 100/220 V * 10% ( 50/60 Hz ) Localization - United States Output Connector(s) - 0 Power Provided - 80 Watt Load Rating - Small LAN / file server Form Factor - Plug-in module