AZIO Corp, or AZIO as shall be referred to henceforth for convenience, is a relatively new company to the PC DIY industry, with a USA-based presence and the name itself having a neat little story - AZIO stands for A-to-Z, Input and Output and, thus, the capitalized abbreviation that makes up the brand's name. As such, I expected AZIO to sell I/O devices, including keyboards, mice, and perhaps audio devices, and a look at their product list shows exactly that. Today, we take a look at their MK Retro mechanical keyboard, and thanks again to AZIO for providing the sample(s) for review.