Model USB-3488A is fully IEEE 488.1 and IEEE 488.2 compatible and provides benefits of “plug-and-play” USB connection for simple direct connection of GPIB instruments to laptop computer. Controller provides reliable GPIB bus control capability while supporting a transfer rate of greater than 1.2 MB/s. It is also fully compatible with NI-488.2 software and supports industry-standard VISA I/O libraries software so that existing GPIB applications can be used without modification.