This is a high-frequency ceramic capacitor with the designation CAP CER 56PF 10V C0G/NP0 1206. It has a capacitance value of 56 picofarads and operates at a voltage rating of 10 volts. The capacitor conforms to the C0G or NP0 specification, which signifies its excellent stability over temperature changes. This component is suitable for use in surface mount applications, with a metric size designation of 3216.