This is a CAP CER 560 PF 1 KV C0G/NP0 1210 type ceramic capacitor. It has a capacitance value of 560 pico Farads and an operating voltage rating of 1000 Volts (1 kilovolt). The capacitor's dielectric material is a temperature-stable C0G or NP0 type, with a tolerance of ±10%.