dealssatmaximum hdmi cat5/6 audio video extender…

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A LITTLE more explanation (description/specs/exactly what comes in package/what you need with this) would be nice. :)

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It's a pair of HDMI over CAT5 adapters. CAT5/6 cable is the same cable you use for networking and LANs. (The blue wires running to your computer from your router) HDMI can be very expensive (and difficult) to run over long distances. With these, you can save some money by using CAT5 or CAT6 cable instead.