That's right — it's an HDMI cable.
But it packs so much technology that it retails for ₪300 or more per unit!
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HDMI cables are used to connect display screens to various devices.
They're a common, very affordable product.
What makes this particular cable special is that it contains optical fiber, rather than the copper found in a standard cable.
Data entering from the end of the cable labeled *Source* is converted into optical signals, transmitted to the other end at tremendous speed, and then converted back into a digital output.
The power required for the conversion process is drawn from the HDMI port itself.
Some of the pins in the HDMI connector carry video, some carry audio, and some carry the power that allows the cable to operate actively.
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Cables like these are capable of transmitting very high-quality video over long distances, free from electromagnetic interference.
I ordered these cables for use in an environment that is particularly dense with devices, which generates electromagnetic interference that disrupts the signal in a standard copper cable.
Even over especially long distances, signal quality degrades with distance.
In both cases, a cable of this type solves the problem effectively and justifies its higher price.