Original Cisco CP-PWR-CUBE-3 Phone 48V 0.38A 18W Netzteil Adapter
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Amazon.com : The VoIP Lounge Replacement 48V Power Supply for Cisco 7900 7800 and 6900 Series IP Phone with AC Power Cord Cube 3 : Office Products
Dc 48v Adapter Power Supply For Select Cisco Phone Models In The 8800, 8900 9900 Series 8811, 8841, 8851, 8861, 8961, 9951, 9971 - Ac/dc Adapters - AliExpress
Amazon.com: Cisco SB-PWR-48V Power Adapter for Small Business, Limited Lifetime Protection (SB-PWR-48V-NA) : Electronics