Accessories and Documentation
Here are both of the red rubber feet. They are backed with 3M double-sided adhesive tape to ensure they will stick and hold to the bottom of the keyboard for a long time to come.
We also received this rubberized cable to connect the MX-Board 3.0 to the PC. One end is a standard USB 2.0 connection, while the other end offers the Mini B connector to use at the back of the keyboard. The cable measures 1.8 meters in length when unwound.
The manual is multilingual, done in black and white, and offers the safety information along with the system requirements and how to connect the keyboard to the PC if this is your first time.
Likely the most important bit in there is how to use the four extra keys. In conjunction with the Control key, you can increase, decrease, or mute the volume, as well as using the left Control key and the Home key will allow you to lock and unlock the Windows keys for gaming purposes.