Product Overview The Middle Atlantic VTB-3 is a 3-space light-blocking vent panel featuring 64% open area for superior airflow combined with pre-installed light-blocking material to conceal internal wiring from view. The flanged steel construction with flat black powder coat finish provides structural rigidity consistent with professional rack enclosure standards. The VTB-3 is the correct choice when both passive ventilation and a clean, opaque rack front panel appearance are required simultaneously. Product Description The VTB-3 Light Blocking Vent Panel from Middle Atlantic Products spans 3 rack spaces and provides a 64% open area for passive ventilation while incorporating pre-installed light-blocking material that prevents the rack interior from being visible through the vent openings. Standard vented rack panels allow airflow but also expose the internal components, cables, and indicator lights to view through the front panel, which can be undesirable in customer-facing installations, presentation environments, and installations where a clean finished appearance is prioritized. The light-blocking material of the VTB Series resolves this by maintaining the visual opacity of the panel face while still allowing full airflow through the high percentage of open area. The 64% open area is a substantial ventilation ratio that supports effective passive cooling. The flanged steel construction provides the panel rigidity needed for stable rack mounting, and the flat black powder coat finish matches standard black rack aesthetics. The VTB-3 is part of the VTB Series, which provides this combination of ventilation and light-blocking performance across multiple rack-space heights. Key Features 64% Open Area — High ventilation percentage for effective passive cooling. Light-Blocking Material — Pre-installed material prevents view of internal components and wiring. 3U / 3SP Form Factor — Spans 3 rack spaces in a standard 19-inch rack. Flanged Steel Construction — Provides structural rigidity for stable panel mounting. Flat Black Powder Coat — Professional finish consistent with standard rack aesthetics. Technical Specifications Specification Value Model VTB-3 Rack Spaces 3U (3SP) Open Area 64% Light Blocking Yes (pre-installed) Material Flanged steel Finish Flat black powder coat Brand Middle Atlantic Products
