HDMI 4x4 Matrix Switch, 4K/60 Operation Manual© Muxlab Inc. 2017 2SAFETY PRECAUTIONSTo insure the best performance from the product, please read all instructionscarefully before using the device. Save this manual for future reference. Follow basic safety precautions to reduce the risk of fire, electrical shock andinjury. Do not dismantle the housing or modify the module. It may result in electricalshock or burn. Do not open or remove the housing of the device as you may be exposed todangerous voltage or other hazards. To prevent fire or shock hazard, do not expose the unit to rain, moisture anddo not install this product near water. Keep the product away from liquids. Spillage into the housing may result in fire, electrical shock, or equipmentdamage. If an object or liquid falls or spills on to the housing, unplug themodule immediately. Do not use liquid or aerosol cleaners to clean this unit. Always unplug thepower to the device before cleaning. Using supplies or parts not meeting the products’ specifications may causedamage, deterioration or malfunction. Refer all servicing to qualified service personnel. Install the device in a place with adequate ventilation to avoid damage causedby overheat. Unplug the power when left unused for a long period of time. Information on disposal of devices: do not burn or mix with general householdwaste, please treat them as normal electrical waste.NOTICE: Please read this manual carefully before using this product.