Product Description: 1. This product supports AHD video signal and audio input (automatically compatible with PAL and NTSC 720P and 1080P resolution). 2. Through the USB interface output to the computer cell phone audio and video capture devices. 3. Compliance with UVC / UAC specifications of the audio and video capture module 4. Compatible with Windows system linux system, Android, MacOS is a plug-and-play, USB drive-free HD video capture tool! Instructions for use: 1.AHD signal source connects to the 1.25*4pin port of the module (from left to right: 5V output, GND, video input, audio input). 2. The USB port of the module is connected to the computer, cell phone, tablet, etc. 3. Open the capture software on the computer or cell phone to display the screen. Product parameters: 1.25mm*4pin terminal block Input signal: AHD 720P/1080P signal (compatible with PAL and NTSC) Output interface: USB Output format: MJPEG YUV422 Video output resolution and frame rate: In MJPEG format: 1920*1080 (30 frames), 1280*720 (60 frames), 800*600, 720*576, 720*480, 640*480, 480*320, 320*240 In YUY2 format: up to 1920*1080(5 frames),1280*720 (10 frames),720*576 (25 frames), 720*480 (30 frames), 640*480, 480*320, 320*240 Audio output: 48KHZ stereo Audio and video protocol: standard UVC/UAC Driver: free installation driver, plug and play Operating system support: Microsoft Windows/Linux/Android/MACOS Common acquisition software: OBS/Potplayer (Windows) Product power consumption: Less than 3 Wat Material: PC+Metal colour: green Package Contents: 1 x module(USB) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.