The 8C-FW FireWire I/O Module type PREV039/10/1 provides up to eight channels of digital audio input and output for the ADA-8 or ADA-8XR over a FireWire (also known as IEEE-1394) bus connection. The FireWire I/O Module enables the ADA-8 to be used as a high quality ‘soundcard’, or I/O interface, for native PC and Macintosh workstation applications. Up to four ADA-8s may be connected on the same FireWire bus allowing up to 32 channels of simultaneous recording and playback. Up to four ADA-8s may be connected on the same FireWire bus allowing up to 32 channels of simultaneous recording and playback. Each FireWire card caters for 8 simultaneous input and output channels at up to 96kHz sampling rate, or for 4 simultaneous input and outputs channels at 176.4 and 192kHz sampling rates. 8 channel simultaneous input and output applications at sampling rates over 96kHz require two FireWire cards. 16 channel input or 16 channel output applications are also supported at up to 96kHz with two FireWire cards. For Windows XP PC applications a driver is supplied with the module, which makes the ADA-8(s) appear as Windows Driver Model and ASIO compliant audio device(s). For Macintosh OS X applications, the Operating System will automatically recognise the connected ADA-8s and make it available to applications as an OS X Core Audio device.