![1pcs 4pin 3.3v-5v Active Smd Crystal Oscillator 5*7 5070 7050 8mhz 10mhz 20mhz 24mhz 25mhz 27mhz 30mhz 40mhz 48mhz 50mhz 60mhz - Oscillators - AliExpress 1pcs 4pin 3.3v-5v Active Smd Crystal Oscillator 5*7 5070 7050 8mhz 10mhz 20mhz 24mhz 25mhz 27mhz 30mhz 40mhz 48mhz 50mhz 60mhz - Oscillators - AliExpress](https://ae01.alicdn.com/kf/HTB1eqa7tWSWBuNjSsrbq6y0mVXak.jpg)
1pcs 4pin 3.3v-5v Active Smd Crystal Oscillator 5*7 5070 7050 8mhz 10mhz 20mhz 24mhz 25mhz 27mhz 30mhz 40mhz 48mhz 50mhz 60mhz - Oscillators - AliExpress
![schematics - 4 Pin Cyrstal Oscillator Pinout to connect to Xi and Xo of CH340G - Electrical Engineering Stack Exchange schematics - 4 Pin Cyrstal Oscillator Pinout to connect to Xi and Xo of CH340G - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/WrVa2.png)
schematics - 4 Pin Cyrstal Oscillator Pinout to connect to Xi and Xo of CH340G - Electrical Engineering Stack Exchange
![pcb-4-pin passive crystal is soldered to a 2-pin crystal PCB package - Electrical Engineering Stack Exchange pcb-4-pin passive crystal is soldered to a 2-pin crystal PCB package - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/JuN33.png)
pcb-4-pin passive crystal is soldered to a 2-pin crystal PCB package - Electrical Engineering Stack Exchange
How to replace the 1 MHz crystal oscillator (4 pin) from this circuit with a 1 MHz crystal (2 pin) - Quora
![schematics - 4 Pin Cyrstal Oscillator Pinout to connect to Xi and Xo of CH340G - Electrical Engineering Stack Exchange schematics - 4 Pin Cyrstal Oscillator Pinout to connect to Xi and Xo of CH340G - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/0BjLQ.png)