Complex sentence: Creative Labs advertised the Audigy as a 24-bit sound card, a controversial marketing claim for a product that did not support end-to-end playback of 24-bit/96 kHzaudio streams.
Split into simpler sentences: Creative Labs advertised the Audigy as a 24-bit sound card. However, the Audigy did not support end-to-end playback of 24-bit/96 kHzaudio streams.