The Edirol SD-20 gives you the right number of sounds, and works with your computer no matter what its age: you can connect through USB or serial ports, and its compact size makes it easy to connect and create anywhere.

Main Features:

• 32-part, 64-voice polyphony
• Complete studio module including 32-part MIDI synthesizer and 64-voice polyphony for sequencing, karaoke, huge orchestrations and more.
• GM2/GS/XGlite 660 tones, 23 drum sets
• The standard GM2/GS/XGlite compatible sound selections provide a variety of music genres such as classical, contemporary, pop and beyond. Play the realistic instruments tones from Grand Pianos, Rippin' Guitars, Jazzy Sax and Ethnic Drums!!
• Optical Digital Output (S/P DIF)
• Optical digital connection allows for exceptional MIDI sound quality output not found on any sound module in its price range.
• USB bus powered, adaptor free
• USB connection supplies power as well as data.
• Easy connection to computer (Serial / USB)
• Legacy compatible with serial computers or simply connect through USB for Mac or PC

  System Requirements:

  Macintosh
  Operating System: MacOS 8.5, 8.6, 9.x
  Computer: USB ready Apple Macintosh
  CPU/clock: PowerPC G3/233 MHz or higher
  Memory (RAM): 64 MB or more
  OMS 2.3.3 or later. FreeMIDI 1.35 or later

  Windows
  Operating System: Microsoft Windows Me/98/98SE/2000/XP
  Computer: Windows compatible equipped with a USB* port
  CPU/clock: Pentium Processor 200 MHz or higher
  Memory (RAM): 32 MB or more
  *Intel USB Chipst are recommended