The UG-5664ASWEF01 with OLED Displays Modules 3.12 RoHS is a type of electronic component manufactured by Univision. It is made up of three OLED (Organic Light Emitting Diode) displays modules, each measuring 3.12 inches. The displays are RoHS (Restriction of Hazardous Substances) compliant, meaning they are designed to restrict the use of hazardous substances such as lead, cadmium, and mercury in the manufacturing process. This module is capable of displaying text and images, and is widely used in mobile devices, wearables, medical equipment, and other consumer electronic products.