I have the following situation for which I need the cable:
My Macbook Air is about 6 m from the printer away at my workplace. My little desk is not big enough to take the printer to make it there, therefore removed the solution on a chest of drawers 6m. Both cable and connect the cable hidden behind my bedroom closet and immediately made a test print. The device reacts immediately and prints diligently going.
All who have the devices such as printers, scanners and Co. to have to stand where else for reasons of space the same problem, I can recommend the cable.
A very good price / performance ratio.