Details:Terrawave Solutions TW-CTEN 2x2 MIMO Ceiling Enclosure Tile 24" x 24" x 4"
TERRAWAVE Solutions 24x24x4 MIMO Hard Cap Ceiling Enclosure with lock. Includes Mounting Hardaware. Comes new in box. Material: Powder Coated Steel Back Panel.
Note: Below is the description for a similar unit with an 8" depth, the closest unit description I could find, but in general these units are for ceiling antennas, wifi units, security, and anything else you would want to mount. Any further info appreciated.
Universal (Pre-drilled Holes for the Cisco AP1252 & Motorola AP7131; Includes Self Tapping Screws for other Manufacturer's APs) Holes: Laser Knock-Outs
You can notice the pre-cut (but still in place) holes in picture. See photos for detail.
Pictured item may not be the one shown. All are identical and in manufacturer's box. Opened one for photos.