The DS-08B is a DIP (dual in-line package) switch manufactured by SM Switch. It is designed to be used in a variety of circuits, including digital-to-analog and analog-to-digital converters, frequency synthesizers, waveform generators, and various other types of IO circuits. It is RoHS-compliant, meaning that it is free from hazardous substances, like lead, mercury, cadmium, and hexavalent chromium, making it safe to use in most applications. It has 8 positions with individual on/off switches and can be connected via a 3.3mm plug-in connector. The product is also RoHS-certified, meaning that it has been tested and verified to meet all RoHS compliance requirements.