IEC 3-pin C13 Mains Lead Cable for For Original XBOX ONE (FAT) Power Supply UK (Power Supply Brick is Not Included)
Colour of cable: Black 
Item was removed from Top Brand Monitor or PC Power Supply (Dell, Samsung, Corsair, Antec, Asus, etc) 
Item is used but works perfectly

The standar original microsoft power cable has 2-pin female connector but you can use this cable with 3-pin female connector (C13 - last picture) for an Xbox One power brick.
The 3-pin connector provides a ground wire, which is a safer option than a 2-pin connector, as long as the wall socket can accept the 3-prong plug


Compatible as below:
For original XBOX ONE (FAT) - NOT SLIM, NOT XBOX ONE X
For original PS4 Pro (1st Gen) - No other PS4
For All Xbox 360 Slim and for most of Xbox 360 Fat models (not all of them)