Bought a laptop with a power supply using this strange plug. The one that came with the power supply/laptop was far too short to reach the wall socket so this did the job really well at a good price.
Right....if you need this cable for a low power product then it should definitely work as intended.
Myself, I wouldn't use this cable for a heater let's say, that draws plenty of power, because the cable seems too flexible meaning that conductor quality is not that great.
Great value though.