DIYTECHPremium 7.2 Speaker Wall Plate, 7 Female to Female Keystone, 4 HDMI, 2 RCA Subwoofer, 2 Cat6 Ethernet, 1 USB 3.0, 1 Audio Toslink, 1 Gold Coax, 3 Gang, for Home Speaker

I used this with a 3 gang low voltage box/mount. The screw situation is weird so I just pulled random stuff from what I had around to get that worked out. eArc works and surround sound speakers sound fine. I didn't test the 4k.

A curious number of five star reviews without a single written comment. The price was relatively cheap, particularly given the number of keystone jacks received, but quality control was poor. One of the two RCA jacks was too tight to actually fit a cable. The screws included don't fit and go through the insert. This might be fine to purchase for the keystone jacks itself, although not every jack may work properly. Disappointed in the product.