
Pair · Slides onto the fan rails
Lian Li A3 120 mm Fan Spacer
In stockClose the gap between your 120 mm fans and the mesh panel of a Lian Li A3-mATX. Each spacer slides onto the case’s fan rails over a fan, so the fan sits sealed against the mesh with no gap around it.
Made for the Lian Li A3-mATX. Sold as a pair, one per 120 mm fan. Slotted friction fit with no screws, and it never touches the fans. Fans are not included; they are shown for fit and scale. See Etsy for available colors.
Manufactured from premium PETG-HF for thermal resistance and structural durability.
Why it’s designed this way
Close the gap between your 120 mm fans and the A3’s mesh panel.
Before you order
- A Lian Li A3-mATX with 120 mm fans on its fan rails
- One spacer per fan
Setup & use
- Step 1
Take off the mesh panel
Take off the mesh panel so you can reach the fan rails.
- Step 2
Slide a spacer over each fan
Slide a spacer onto the rails over each fan until it sits snug, slotted side on the rails.
- Step 3
Refit the mesh panel
Refit the mesh panel so it presses against the spacers.
Drawn from the product’s 3D models. Cases, desks, devices and other surroundings are illustrative; drawings are not measured plans.
Care & troubleshooting
If a spacer shifts, slide it back over its fan. Dust the mesh now and then.





















