The CX3 EXT from IQD Frequency Products is a RF Quartz Crystal with Frequency 800 KHz to 1.35 MHz, Frequency Tolerance ±500 to ±10, 000 ppm, Drive Power Level 3 µW, Load Capacitance 7 pF, Shunt Capacitance 1 pF. Tags: Surface Mount, Ceramic. More details for CX3 EXT can be seen below.