The CLV220A is an Optical HDMI 2.0 cable aimed for fixed installations. It is able to transmit resolutions up to 4K@60Hz 4:4:4 with a bandwidth of 18Gbps via optical fiber, eliminating the possibility of electronic interference. The interchangeable connectors enable you to easily detach and reattach the connectors. This way the cable can be fitted through holes and straight tubes with diameters as small as 25 mm.
The CLV220A comes with a USB A to USB Micro B cable included, which is an accessory only required when the HDMI port on the transmitter side is delivering insufficient voltage (typically required when < 4.8 V) for powering the receiver end. The power is transferred from transmitter end to receiver end over the CLV220A cable.
Most general HDMI sources deliver sufficient voltage making the additional cable unnecessary. However typical applications where it might be required are e.g. streaming media player boxes, which might deliver insufficient voltage over their HDMI output.