Both ends are protected with plastic overcoats and the two connectors are perfect. They each have a small button with which you can lock or unlock the connector. Since the cable is very rigid, this key is for locking but necessary. Otherwise, the cable would sometimes like to slip out.
Whether the cable supports resolutions up to 3840 x 2160, I can not say. Our image is well transferred and there is no interference or dropouts.
Delivery is surprisingly fast, two days longer it will take.