Do you know why one of the USB-C side is coated?

 

This is made for engineer or testing lab.

It was coated to make sure you can plug and unplug for thousand of times without or least to wearing your USB-C socket on your expensive equipment side.

You know, your equipment may cost you many thousands

The descriptions are as follows:

This specialist USB-C test cable is designed for use within commercial equipment testing scenarios where USB-C interface devices require functionality testing, but without damaging or scratching the brand new interface. The specially designed material of the male connector will not harm or scratch your equipment.

Commercial grade cable designed for larger scale equipment manufacturers where testing interfaces is of paramount importance but needs to be achieved without inducing any wear on the product.

It is effectively to prevent the equipment from being used for wear, scratch, damage and other traces of the Type-C socket due to testing, and to ensure that the brand-new state of the product will not be damaged.

Details at: usbfever

SKU: UF006781