M-Audio Oxygen 61 Specifications:

• Windows:
• Pentium 3 - 800MHz or higher
• (CPU may be higher for laptops)
• 256MB RAM
• DirectX 9.0b or higher
• Windows XP (SP1) or higher
• (Windows 98, Me, Nt, or 2000 not supported)
• M-Audio suggests you also check the minimum requirements for you software as they may be greater than the above. 
  
  Mac OS:
• Macintosh G3 800/G4 733MHz or higher
• (CPU may be higher for laptops)
• OS X 10.2.8 with 256MB RAM
• OS X 10.3.4 or greater with 512MB RAM
• Native USB port required. G3/G4 accelerator cards not supported.

M-Audio Oxygen 61 61-Key Mobile USB Controller 3rd Generation Features:

• 61-note velocity-sensitive synth-action keyboard with USB MIDI interface
• 8 fully assignable MIDI controller knobs
• 9 fully assignable MIDI sliders
• 15 assignable buttons, including 6 transport buttons
• Assignable pitch bend and modulation wheels
• Octave up/down; transpose up/down
• Preset up/down
• MIDI channel/program change up/down
• 7 top-panel function buttons plus additional programming functions on keybed
• 3-segment LED screen
• USB 1.1 port
• Sustain pedal jack
• MIDI Out jack
• Powered via USB or optional power supply
• Class-compliant with Windows XP and Mac OS X
• 10 non-volatile memories
• Memory dump via SysEx
• Free Enigma librarian/editor software for storing and organizing setups
• All controllers fully programmable to MIDI controller number and channel
• Controller mute function mutes controller output to avoid parameter jumps
• Snapshot function transmits all current controller settings
• Weighs just over 6 lbs.
• Includes Ableton Live Lite 4 music production software.