They worked great for me on a 60ft run with CAT 5E. I can confirm that they absolutely deliver 1080P AND 7.1 Surround over LPCM. I also get 5.1 Dolby and 5.1 DTS with no problems. I use it in conjunction with an active HDMI splitter so I can play my PS4 PRO on either a 4K HD TV in the playroom or a media room projector with 7.1 surround sound.
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