The USB 3.0 extension cable from kabelmeister® has been specifically designed for industrial applications. You can rely on the proven quality of kabelmeister®. For our USB 3.0 cables, we only use high-quality, UL-certified cable materials. The use of modern production facilities, standardized processes, and high-quality materials ensures consistently high processing quality of the products. USB 3.0 mounting cable for industrial use - hole spacing of 28.5 mm. The USB extension mount incorporates two M3 nuts with a hole spacing of 28.5 mm. The nut holders are moderately flexible, allowing the mounting socket to be used even with a hole spacing of plus/minus approximately 2 mm. This hole spacing is very common in housing cutouts and mounting panels. The M3 screws needed for fastening are included in the delivery. High-quality cable construction. The conductors of our USB cables are made of copper (CU) and.