The USB-DIO96H Series provides 96 lines of high-current, logic-level, bidirectional digital I/O. The units offer 4 independent 24-bit DIO groups, each divided into two 8-bit ports and two 4-bit ports. The board is plug-and-play allowing quick connect/disconnect whenever you need additional I/O on your USB. This USB board is an ideal solution for adding portable, easy-to-install digital I/O capabilities to any computer with a USB port. With 2 inputs / 2 outputs, class-A mic preamps, and 24-bit/96?kHz converters, it delivers clean, high-fidelity audio whether you're recording vocals, instruments, or podcasts. ● Additional accessories include flat ribbon cables and DIN-rail mountable screw terminal boards for remote wiring and installation. It is fully compatible with both USB 1.