The SGM8304 operational amplifier module replaces the SGM8304 computing chip on the S19 S19XP hash board of the Antminer. This module is easy to install; install it in the original position of the corresponding chip. This amplifier module is upgraded based on the SGM8304 operational amplifier chip. It is a high-gain, frequency-compensated operational amplifier designed to operate with a single power supply in a wide voltage range. In addition, this amplifier module allows you to amplify the signal's voltage easily.