With the Pro S you have a keyboard which apes the majority of tenkeyless designs, having Cherry MX switches at the heart, a single colour LED, and lacking the number pad to help keep the foot print down. To be honest it's all fairly standard stuff with little to make it stand proud amongst the sea of narrow keyboards on the market. It's built like a tank, the Cherry MX switches are up to their usual high standards, and the lighting, albeit it only white, is crisp and clear. It has adjustable repeat rates and onboard macro recording, as well as profile switching. It might not have anything particularly innovative to recommend it, but neither are there any obvious flaws in its design. There is a slight niggle in that the removable USB cable has a right angled connector, but with the port on the right hand edge of the Masterkeys it ends up facing to the inside of the keyboard. With 99% of towers having their window on the left, and thus positioned on the right side of everyone's desk having a cable that faces left is a bit irritating. By no means a deal breaker, but it's such an obvious thing we wonder how the design department missed it. read review...