It also bears the distinction of supporting file transfers via Ethernet through its docking station, as well as the standard USB 2.0.

It is not supported as a plug and play removable drive, although the program Rio Taxi does allow any data to be stored.

Like many Rio players, the Karma's firmware features a 5-band parametric equalizer, cross-fader, true gapless playback, animated menus, dynamic playlist generation and visualizations.

The Karma has three options for what is displayed on the play screen Options include English (US), English (UK), German, French, Japanese, Chinese & Spanish.

It is possible to install a higher data capacity hard drive, commonly 30, 40, or 60GB, though these may be physically larger, requiring case modifications.