This is an AC adapter with power cord made by Delta Electronics Inc. AP-10JB.
The cord is black and features a three prong plug-in on one end. The model number is 15543570. It is marked "Input: 100-240V`1.0A 50-60Hz, Output: 3.3V---2.0A, 7.0V---0.35A, 3.3V Pins = 4, GND Pins = 3, 7.0V Pins = 2."
It measures about 134.5" long when fully extended. The power box measures about 4.25" long, 2.25" wide, and 1.25" thick.
This AC adapter was made in China.
It is in good pre-owned condition. It has not been tested and is being sold as-is.