Hereâ€™s what they have to say in their own wordsâ€¦
The GM5 chip works with standard class-compliant drivers and is fully compatible with Windows Vista, XP and Mac OS X. Alternatively, customers can use the GM5 chip with Ploytec's special custom drivers, which feature greatly enhanced performance compared to standard drivers. GM5 ICs support a I2C EEPROM for vendor-specific data and start at euros 2.50 in quantity.
Ploytec is a leader in providing USB audio and MIDI drivers to end customers with 8 years experience in USB driver design. Ploytec has assisted the music industry into adoption of the USB2.0 protocol for audio with high-performance, low latency software and hardware that pushes the limits of USB audio.