Close empty slots in your rack by installing Winsted's 99140 1U Black Blank Panel (1.75"; 4.45 cm). This steel panel fits standard width 19.0" (48.26 cm) EIA racks and fills one rack space (1U).
Blank Panels range in size from one to 14 rack units. (Fastening bolts or G8056 Security Screws are sold separately.) In addition to steel, Blank Panels are also available as custom-color laminated wood panels.