1-Gang Low Voltage Mounting Bracket

A:  Yes they can be used 

A:  Yes HDMI and cable wires are low voltage. You cannot use this to run Home power cables or extension cords that are 120V

A:  Hello Ray, You should be able to find the official installation guide on The Home Depot product page, under "Product Overview" and "Info & Guides". Please see directions below: 1. Hold Low Voltage Mounting Bracket backwards flush to the wall in your desired location of installation. Trace around the inside the opening of the bracket with a pencil. 2. Cut along the traced line with a drywall saw or utility knife. 3. Insert Low Voltage Mounting Bracket into opening. Bending one tab at a time, fold each of the two (2) tabs backwards until they are flush against the inside of the wall. This will hold the Low Voltage Mounting Bracket in place. 4. Install any standard low voltage single gang (1-gang) wall plate to the bracket.

A:  1. cut 3 1/2 x 2 1/4 hole in sheetrock. 2. place bracket in the hole 3. bend the two long tabs over (~180 degrees) snug against the back side of the sheetrock. I use big channel lock pliers to squeeze the tabs firmly against the sheetrock. 4. install cover plate -if the threaded holes in the bracket aren't messed up and they probably will be!

A:  TRACE THE INNER OPENING ONTO YOUR WALL AND CUT THE DRYWALL . (MAKE SURE YOU ARE NOT OVERA STUD OR ELECTRICAL WIRING)