AVMATRIX HVS0401E 4CH HDMI/DP Video Switcher With Recording. (Hvs0401e is a 4 Channel HDMI Live Video Switcher with SD CARD Recording Functionmicro 4 channel hdmi/ dp video switcherinputs 1~3: hdmi, input 4: hdmi/dpoutputs: hdmi pgm×2, hdmi multiview×1, usb type-c×1, lan×1lan port for rtmp streaming and upgradeusb disk/ sd card for pgm recordingusb type-c for video capturing (uvc)pip function, adjustable size and positionaudio mixer: 3.5mm mic/ rca/ hdmi embedded audioauto/ cut transitions and mix/ fade/ wipe effectsgpio interface for live tally systemftb for emergency situation