Ezcap 312 Game Link Pro 4K60 Capture Game Live Broadcast Box Video Capture. You can achieve the goal by intuitively adjusting the corresponding volume knob of ezcap312 Game Link Pro. 4Kp60fps HDMI input and output. The highest recording resolution is 1080p60pfs. Rich audio interface, microphone and line input, headphone line output. Special volume adjustment knob design, you can adjust the HDMI background sound, microphone and line input volume from mute to maximum volume by adjusting the volume knob.