Cisco Power Supply for Power Cube 3 and 2, CP-PWR-CUBE-3 7900 IP Series Adapter and Polycom VVX Phones - 6 Foot AC Power Cord Included WARNING: Global Source Digital Technologies is the only who makes and sell this product. Warranty will not apply if purchased from a different seller as it is not genuine to our product. Compatible with all 7900 & 6900 series phones. Also 7800 series, 8941, 8945. Cube 2 & even Polycom Soundpoint IP 560, SoundPoint IP 670, VVX 500, VVX 600 and the VVX 1500 series phones. Includes 6 foot power cord (many of this same power supply sold on Amazon does not) INPUT:100-200 VAC, 50/60Hz OUTPUT: DC 48V, 0.375 A(5.5/2.5 plug) UL Listed. Great quality. NON-OEM adapter