This acrylic bracket will hold four power supplies cleanly, and the shelves won't sag over time. Made with 1/4" cast acrylic, it can be screwed to the wall or inside the stand.

Available in two sizes: small: 4 shelves and medium: 5 shelves

Specifics:

• Four shelves 6.5" long x 3" wide holds most power supplies
• Each shelf is notched for 3/4" velcro tie-strap
• Two 1/4" mounting holes 
• Total size: 6.5" wide x 3.25" deep x 9" tall