The MS2131S is a USB3.0 high-definition audio and video capture +HD loop output + mixing processing chip, which integrates a USB3.0 Device controller, data transceiver module, and audio and video processing module internally. The MS2131S can transmit HD input audio and video signals to PCS, smartphones, and tablets for preview or collection via the USB3.0 interface. The MS2131S supports HD loop-out function. The MS2131S supports three IIS inputs, digital audio and HD audio mixing processing, three IIS outputs, and S/PDIF output. The MS2131S output supports four modes: YUV422, MIPEG, RGB24 and NV12, and is compatible with Windows, Android and macOS systems. The MS2131S is equipped with a built-in MCU and supports function customization and secondary development.