APC AR8136BLK – 2U Rack Blanking Panel

Overview

The APC AR8136BLK is a 2U rack blanking panel designed to cover unused rack space in 19‑inch server, network, and data center cabinets. It is used by data center engineers, network infrastructure teams, and IT operations staff to maintain consistent front‑to‑rear airflow within partially populated racks. By blocking open rack units, the panel prevents hot exhaust air from recirculating into intake zones, which supports predictable cooling performance and reduces thermal stress on active equipment.

This panel occupies 2U of rack space and installs into standard rack mounting rails via compatible mounting hardware. Its solid construction provides a continuous surface that blocks airflow through unused portions of the cabinet. In racks with front‑to‑rear airflow architectures, sealing open units helps sustain efficient airflow pathways, preventing bypass airflow that can compromise thermal management.

The AR8136BLK is typically deployed in enterprise server rooms, colocation facilities, telecommunications closets, and data center racks where equipment is not yet installed or only partially populated. During phased deployments or equipment refreshes, blanking panels fill spaces until servers, switches, or storage systems are added. This preserves airflow integrity and contributes to uniform rack thermal profiles.

A practical deployment example includes a partially populated network rack where several 1U and 2U devices are installed with gaps between them. Installing the AR8136BLK in the open 2U slot ensures that cold intake air is directed into active devices while hot exhaust air is prevented from bypassing rear airflow paths. This supports efficient cooling and reduces the likelihood of hot spots.

This panel is not suitable for environments that require vented airflow through blanking panels, such as cabinets relying on passive airflow distribution or where controlled airflow through open slots is necessary. In those instances, vented or perforated blanking panels should be used instead.

Key Features

• 2U solid rack blanking panel for 19‑inch racks
• Blocks unused rack openings to maintain airflow
• Front‑mount installation on standard rack rails
• Continuous panel surface simplifies rack layout
• Supports thermal management in partial deployments