M-Audio 61 Key USB Keystation

Keystation 61es is a 61-note USB keyboard with velocity-sensitive, semi-weighted keys that is designed to easily integrate in any computer music environment. Class-compliancy with Mac OS X and Windows XP delivers true plug-and-play setup. The Keystation 61es is also compatible with many music education and music creation software titles, making it ideal for classrooms and studios alike. More advanced users can control software synths, external sound devices, and more with the assignable slider, and pitch and mod wheels. This sleek, compact keyboard is USB bus-powered and requires no external power supply.
 
Features: 

• 61-note velocity-sensitive semi-weighted action 
• pitch bend and modulation wheels 
• volume/control slider 
• advanced function button for programming 
• sustain foot pedal input (pedal sold separately) 
• octave +/- buttons to extend keyboard range  
• separate MIDI out jack routes MIDI signals from your computer to control external devices 
• powered via USB or 9VDC power adapter (sold separately)  
• Mac OS X and Windows XP class-compliant for plug-and-play 
• includes Ableton Live Lite 4 music production software, so you can make music right away

Minimum System Requirements (PC):

• Windows 98SE / Me / 2000 (SP4) / XP (SP1 or higher)*
• Home and Professional Edition only. Windows Media Center Edition is not currently supported.  

Minimum System Requirements (MAC):

• OS 9.2.2 with OMS 2.3.8 (included) 
• OS X 10.1.5 or greater, native USB port required; G3/G4 accelerator cards not supported 

This keyboard has been played a few times in my studio. Not really in use and is taking up space works 100%