Genuine FSP Group FSP025-1AD207A Avaya Cisco Series 48V 0.52A AC/DC Power Adapter 9NA0251002-GP.FSP Model Number: FSP025-1AD207AFSP Part Number: 9NA0251002-GPCompatible Models: Avaya and Cisco Phones SeriesSpecifications:Input : 100-240V ~ 0.7A, 50/60GHzOutput : 48V - 0.52A MAXUse with : AVAYA , CISCO Phones