Knurr 1U Blanking Panel — Steel, 10-Pack

Knurr 1U Blanking Panel — Steel, 10-Pack

Proper rack airflow management begins with eliminating bypass air through unused rack unit positions. The Knurr 1U Blanking Panel, manufactured by Extron, is stamped from 1.0 mm cold-rolled steel sheet and powder-coated in RAL 7021 dark-grey to match Knurr DCM and MIR2 rack interiors. By sealing empty 1U slots, these panels force cooling air through active equipment rather than short-circuiting through open rack positions — a simple, low-cost intervention with measurable thermal impact.

Measurable Thermal Improvement

Sealing empty 1U slots with blanking panels can reduce rack inlet temperatures by 3–7°C in measured CFD studies, directly reducing the risk of thermal throttling and hardware failure in high-density server deployments. This is one of the highest-ROI airflow management interventions available for existing rack installations.

Studio shot: Knurr 1U blanking panels showing the RAL 7021 dark-grey finish and M6 mounting holes.

Economical 10-Pack

Shipping in a 10-pack, these panels provide economical coverage of empty rack positions across production data center racks. Each panel mounts with standard M6 cage nuts in any 19" IEC 60297-2 rack and bears a 0.5U height mark for reference during installation. The 1.0 mm steel construction provides rigid, rattle-free filling of empty positions without adding meaningful weight to the rack.

In-use installation: Knurr 1U blanking panels correctly installed across unused U positions between servers in a live data center rack.

Detail shot: Steel panel edge, M6 mounting hole pattern, and RAL 7021 powder-coat surface texture.

Specifications