We need AC to Dc Power inverter for Power Supply of Cisco Catalyst Access Switch 3850 ,DC Power Supply No. PWR-C1-440WDC,Input V : 36V - 72V,Total QTYs of Power Supplies:: 91 ( 91 AC to Dc Power inverter required for each power supply),Kindly acknowledge with the prices and Solution,Plz Send Me your official email id to provide you further detail