CRS-FIBERH-S1 is a pure fiber high speed HDMI pluggable cable specially designed for security applications. CRS-FIBERH-S1 contains pre-stored EDID values making a DDC channel unnecessary and audio select. It has a low risk of EMI and RFI (Electromagnetic and Radio Frequency Interference) and provides a very high level of signal security over copper and hybris HDMI cables.