myDMX Buddy is a scaled down, entry level version of myDMX 2.0. Out of the package, myDMX 2.0 software will run in limited mode; 256 "Live" DMX channels & 12 "Stand Alone" DMX channels (No 3D visualizer, Easy Remote or Midi features). However, these features plus other upgrades, including additional Live & Stand Alone channels can be purchased at www.store.dmxsoft.com. The dongle plugs directly into a 3-pin DMX input on your lighting fixture or can be connected to a standard, 3-pin DMX cable to extend your data run. The dongle connects to a computer via a USB connection.