AVG-MHD4K-88 The product is a professional 8×8 HDMI 2.0 Matrix Switcher with Audio Matrix. It includes 8 HDMI inputs, 8 HDMI outputs and the last four outputs feature a down-scaling function, which is designed for switching four HDMI2.0 and HDCP2.2 compliant signals. It also features 8 SPDIF and 8 analog audio outputs for the built in audio matrix.