Given the price, it should have extras like a volume knob or USB pass-through, but Kensington's imposing, quiet MK7500F mechanical keyboard will thrill discriminating typists and frequent conference callers.
You don't expect the supercheap Amazon Basics Keyboard to be an ergonomic or productivity showpiece, and it isn't. It's a competent, functional tool for times when you need to pay the very minimum.
Growing in popularity as gaming and PC peripherals, the best mechanical keyboards are based on performance, size, and price, with Razer and SteelSeries as the top options.