StarTech.com 1U Tool-Less Rack Blanking Panels for 19-inch Square-Hole Racks, ABS Plastic, Black, 10-Pack

The StarTech.com BLANKP10 is a pack of ten 1U blanking panels that snap into the empty spaces of a 19-inch server rack or network cabinet without screws or cage nuts, for anyone who wants a tidier, better-cooled rack.

Empty U spaces let hot exhaust air from the back of the rack circle round to the front and get pulled back into your servers and switches. Filling those gaps with blanking panels forces cool air to go through the equipment instead of around it, which is the cheapest cooling improvement you can make in a rack. The panels also hide cable clutter and stop fingers and tools reaching live equipment through open slots.

• 10 × 1U blanking panels (ABS plastic, black)
• No screws or cage nuts are needed or supplied — the panels latch directly into the rail

• Each panel covers exactly one rack unit (44.45 mm). For a 3U gap, fit three panels one above the other.
• Installation takes seconds: push the panel into the square holes on both front rails until it clicks. Removal is just as quick, so you can re-plan the rack later without hunting for screws.
• Ten panels in one box usually covers the gaps of a typical half-filled 42U rack; larger rooms often buy several packs to standardise on one look.
• Front-mounted: they close the front face of the rack, which is where the cold aisle and airflow separation matter most.

• Racks or wall cabinets with round-hole or threaded (tapped) rails — the latch is made for square holes.
• 10-inch mini racks — the panels are 19-inch wide.
• Gaps smaller than 1U, or half-U offsets between devices — each panel needs a full, empty 1U position.
• They are not a vented or brush panel: they block airflow and cables completely. For cable pass-through use a brush panel instead.