MIDI / USB Keyboards are essentially MIDI Controllers that are used like a traditional keyboard, but with many parameters present on their surface to allow for expression and volume control, note velocity detection, and drumming with the help of on-board pads. The keyboard layout allows for easy, straightforward music-making thanks to its familiarity, making any instrument - a violin, choir, or bass, for example - accessible on a simple keyboard. Apart from synth-action keys, these controllers also have weighted and semi-weighted key options. In addition to the console, MIDI Controller Accessories can be extremely useful to transport equipment, and keep updating with extra features and fixes. Some of these features include sustain pedals, travel bags USB to MIDI interfaces, and cases.
An important distinction to make between MIDI Keyboards and other Electronic Keyboards is the availability of built-in sounds and data. MIDI Keyboards are simply controllers that communicate with a DAW (Digital Audio Workstation) to assign and produce sounds. They do not have a sound engine or audio computing capabilities as a stand alone device. On the other hand, Arranger Workstation keyboards can be used independently and without the need for a computer. They have sounds and other audio tools built-in for music creation. Another distinctive feature of MIDI Keyboards is the lack of a built-in speaker system as seen on most portable keyboards and Arranger Workstations. An external monitor or headphone is required to hear the sound produced on a MIDI Keyboard.