The K60 comes with a small wrist rest for the left hand and has a niche in the middle for the thumb. The wrist rest also doubles as a case for a set of extra red keys (WASD cluster and numbers 1-6), more used in FPS games. The keys, however, are far from being mere replacements. They actually provide a small degree of customization since the keys are rubberized and more rounded. The set comes with an extraction tool.
On the backside of the keyboard there is a USB port so the user can plug in a mouse or some other peripheral (a digital headset with a USB connector, for instance). The cable has two USB connectors, one for the keyboard connection itself, and the other functions as a USB pass-through connector for the port on the back of the keyboard. Both connectors are blue, making them easy to single out in the knot of cables behind the PC.
The underside comes with four retractable feet, two above and two below the board, and the latch for the wrist rest.