The 888|24 I/O is designed for uncompromising performance when recording, editing, signal processing, and mixing. Along with eight analog inputs equipped with excellent, 24-bit A/D converters, each output channel also offers a 24-bit D/A converter for precise monitoring applications. The 888|24 I/O also includes eight channels of digital I/O for sample-accurate, 24-bit transfers from digital tape or digital mixing consoles. If you have an expanded Pro Tools system (Pro Tools|24 MIXplus or MIX3), you can combine multiple 888|24 I/O units for up to 72 (software-dependent) channels of discrete analog or digital I/O. The 888|24 I/O can also be used as a stand-alone A/D or D/A converter.