This AJA HD5DA 1x4 HD/SD - SDI distribution amplifier and repeater comes without a power supply. Please note that you'll need to arrange a suitable power supply separately for it to function properly.

To use this AJA HD5DA 1x4 HD/SD - SDI distribution amplifier and repeater, first, make sure you have a proper power supply as it's not included. Connect your HD or SD - SDI source to the input of the amplifier. Then, connect your devices to the four output ports. When using, keep it in a well - ventilated place to prevent overheating. For maintenance, regularly check the connection cables for any signs of damage. If there are any issues, disconnect the power supply before inspection.