Cisco PPR-CUBE AC Adapter for Cisco 7900 series wired phones
This is a GENUINE, ORIGINAL, NEW Cisco power cube (PWR CUBE) designed for all wired Cisco 7900 series phones, including higher version models. To protect this listing against counterfeits, INSURE YOUR ADAPTER SAYS CISCO OR DELTA, and that the power output is 48V & .38amps. Anything else is counterfeit. This model comes with the ADAPTER ONLY. The cord is NOT included (search Amazon for '7941 adapter' for the equivalent listing with power cord). This unit takes a standard PC type power cord, so if you have any lying around, it will work fine and you needn't buy another one.