BD FACSDiva™ CS&T research beads (CS&T research beads) are designed for use on BD™ flow cytometers running BD FACSDiva™ software (v7.0 or later). The beads allow the software to automatically characterize, track, and report measurements of supported BD digital flow cytometers. CS&T research beads are dyed with fluorochromes which are excited by the cytometer’s lasers.