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The 30 feet to 328 feet HDMI cable are directional active HDMI cables. Active cables require sufficient power to function properly. So, you need to use the HDMI USB cable included in the HDMI box to connect to any 5V USB port or any 5V USB adapter except on HUB. Why do we need to use this HDMI USB cable? Due to certain HDMI slots, such as those on HUB, SWITCH, or Splitter, it is not possible to provide sufficient power for active HDMI cables. Please connect the active HDMI cable to the HDMI USB cable, and then connect to HUB, SWITCH, or Splitter. The active HDMI cable is directional. Directional HDMI means that the source end of HDMI needs to be connected to the source (this end must be plugged into the HDMI output of sources such as DVD/computer/PS5/Xbox...), while the other end is displayed on the monitor/TV/projector. Before ordering these HDMI cables, it is necessary to understand these instructions and install the HDMI cables according to the instructions.
