The Mindray DP-7700 ultrasound unit is a competetively priced system that produced high definition black and white images for obstetrics and gynecology applications. The Mindray DP-7700 ultrassound unit features dual USB ports for multi-frequency transducersm and 128-frame cine loop. The Mindray DP-7700 ultrasound equipment is the perfect clinical diagnosis tool that will provide you with convenience and functionality.