Middle Atlantic 3 Space (5 1/4in. ) VTP-3 Slotted Vent Panel Black Brushed and Anodized Finish

Middle Atlantic VTP-3 3U Slotted Vent Panel for 19-Inch Rack Enclosures

Overview

The Middle Atlantic VTP-3 is a 3-rack-unit slotted vent panel designed to manage passive airflow in standard 19-inch equipment racks. At 5.25 inches tall and just 0.51 inches deep, it mounts flush in any open RU slot to break up heat-trapping dead zones between installed equipment — the kind that quietly cook power supplies and reduce component lifespan in high-density AV, security, and IT rack builds. If you're stacking NVRs, encoders, or managed switches without adequate spacing, this is the practical fix. VTP-3 (often searched as VTP 3) ships in a black brushed and anodized finish that blends cleanly with standard black rack rails.

Key Features

• 3U Rack Height (5.25 in): Occupies exactly three rack units, giving you a meaningful thermal break between high-heat devices. Unlike a 1U filler that mostly does nothing, three units of vented space creates a real airflow channel — useful when sandwiching a high-wattage NVR between two other active devices.
• 20% Vent Open Area: One-fifth of the panel face is open slot area. This isn't a sealed blank panel — passive convection pulls warm air up and away from heat-generating equipment below. In a sealed wall-mount rack with no active fan, this is often the only thing standing between adequate temperatures and throttled performance.
• 19-Inch Standard Width (48.3 cm): Fits any EIA-standard 19-inch rack — Middle Atlantic, Belden, Legrand, or third-party enclosures. No adapter hardware needed. Flanged style means it drops straight onto standard rack rails with two mounting points.
• Flanged Style, 2 Mounting Points: The flanged design seats against the rack rail face just like any standard 1U or 2U device. Two-point mounting keeps it stable without over-engineering the installation. No cage nuts required beyond what your rack already has in place.
• 0.51-Inch Depth: Nearly flush with the rack rail plane. Leaves the full depth of your rack interior clear for cable management, patch panels, or rear-mounted equipment. Not a concern for tight enclosures where every inch of usable depth matters.
• Black Brushed and Anodized Finish: Anodized aluminum holds up to the scratches, vibration, and occasional tool contact that happen in working rack environments. The brushed texture matches most professional-grade rack furniture without requiring a color-match hunt.
• 0.55 lbs Shipping Weight: Light enough that it adds no meaningful load to a rack that's already supporting 50–150 lbs of network and security hardware. Ships as a single unit (Package Count: 1).

Integration & Compatibility

The VTP-3 installs in any Middle Atlantic rack enclosure or third-party EIA-standard 19-inch rack. It's a passive panel — no cabling, no power, no configuration. Use it in open-frame and enclosed rack builds wherever you need to fill rack units without blocking airflow, or wherever a sealed blank panel would trap heat. Particularly useful in NVR and network rack deployments where high-wattage recording and switching equipment generates sustained heat loads. Pair with active rack cooling accessories like top-mount fans when passive venting alone isn't sufficient for your thermal load. For guidance on rack layout and airflow planning, see our rack and power planning guide.

What's in the Box

• 1x Middle Atlantic VTP-3 Slotted Vent Panel

Frequently Asked Questions

Q: What rack unit size is the VTP-3?

A: The VTP-3 occupies 3 rack units (3U), which equals 5.25 inches of vertical rack space. It is designed for standard EIA 19-inch rack rails.

Q: Does the VTP-3 come with mounting hardware?

A: The panel ships as a single unit with a flanged style that uses 2 mounting points on standard rack rails. Check whether your rack enclosure requires cage nuts or clip nuts — these are not listed as included in the package contents.

Q: Is the VTP-3 a solid blank panel or does it allow airflow?

A: It is a vented panel with 20% open area. It allows passive airflow through the rack — it is not a solid filler blank. Use a solid filler panel if you need to block airflow or prevent dust ingress in a pressurized cooling setup.

Q: What finish does the VTP-3 have?

A: Black brushed and anodized aluminum. The anodized finish resists scratching and corrosion in working rack environments.

Q: Will the VTP-3 fit a non-Middle Atlantic rack?

A: Yes. The panel is 19 inches wide (48.3 cm) and uses a standard flanged style, making it compatible with any EIA-standard 19-inch rack enclosure regardless of manufacturer.

Q: How deep is the VTP-3?

A: Only 0.51 inches (1.3 cm) deep — effectively flush with the rack rail face. It does not intrude into usable rack depth.

Marty Allison

The Middle Atlantic VTP-3 is the kind of panel that rarely gets specified until something overheats — but when you're building a rack that mixes NVRs, PoE switches, and power distribution all in one enclosure, the 20% vented open area over three rack units is the difference between a rack that runs cool under load and one that throttles on a summer afternoon. I use it specifically in wall-mount security enclosures where there's no room for a top-mount fan and passive convection is doing all the thermal work.

Technical Highlights:

• 20% Open Vent Area: Provides real passive airflow versus a sealed blank — critical in enclosed racks where convection is the only cooling mechanism. One-fifth open face across 3U creates a meaningful chimney effect between heat-generating devices.
• 0.51-Inch Depth: Leaves the full interior depth of the enclosure available. In shallow 12-inch or 14-inch depth wall-mount racks, this matters — a deep panel would conflict with rear cable routing.
• Flanged Style, 2-Point Mount: Drops in on standard rack rails with no special hardware beyond what's already in the rack. Fast to install, stable in position, no movement under vibration from adjacent fans or hard drives.

Deployment Considerations:

• The 3U height makes it a practical thermal break between a bottom-mounted UPS or power strip and the active network/recording equipment above it — a common layout in security rack builds where heat rises directly into switch and NVR intakes.
• At 20% open area, the VTP-3 is not a replacement for active cooling in high-density racks running sustained thermal loads. If your rack is pulling more than 500W continuously, pair it with a forced-air solution — the passive vent is a complement, not a substitute.

Best deployment scenario: a 12U or 14U wall-mount security enclosure running an NVR, a PoE switch, and a small UPS — where the VTP-3 sits between the UPS and the active equipment to keep warm air from the battery pack from feeding directly into the switch's intake vents.