This mounting kit is designed for the Harbor Freight plastic ammo box (Part# 63135).
Cut from 1/8" baltic birch plywood, this kit is lightweight and strong. Because it's made from wood, you'll find it very easy to modify if you need to drill new holes or make additional cuts.
The kit is pre-drilled for mounting a Meanwell power supply, but mounting holes for electronics are left to the customer. The kit includes hardware to assemble the mounting plate as well as screws to mount the power supply. Mounting hardware for electronics and boards are to be supplies by the customer.