Review on Cable Matters 72W 4-Port USB C Charger: 60W Power Delivery for Laptops, Tablets, and Smartphones - Black by Jeff Pfaff

Has worked as expected for about 11 months. Then he stopped working. Completely dead USB PD port. This can happen to any manufacturer/product. In this case, however, it is impossible to contact Cable Matters. Even finding out how much the guarantee was on something, for starters, it's impossible. They have persuasive links in the right places, but after chasing those links, they just refer to each other, not to communicate with them. Very disappointed.