extends overall length of HDMI cable. No noticeable signal loss, have to secure both cables as there is no real restraint holding each into this adapter, Used it for two 25 foot cables under the living room floor.
As a DJ and KJ I use HDMI cables quite a bit. Having this coupler makes things easy when you are short a few feet and have an extra cable to add on.And while we have received many items from overstock that were damaged or didn't work properly, this is just fine.
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