Small-form-factor PCs · Greater Chicago

Every card in the A3-mATX

Will it fit

Does the PowerColor Hellhound Radeon RX 9070 XT fit in the Lian Li A3-mATX?

Fits

Yes. The PowerColor Hellhound Radeon RX 9070 XT fits the Lian Li A3-mATX with 75 mm of length to spare.

Length340 of 415 mm75 mm spare
Height142 mmNot published
Thickness2.5 of 4 slots1.5 slots spare
Exact measurements
SizePowerColorA3-mATXRoom
Length340 mm415 mm75 mm spare
Height142 mm—Not published
Thickness2.5 slots4 slots1.5 slots spare

Lian Li's published spec

Rather have it built?

We build the RX 9070 XT into small PCs by hand, each tested and shipped with its own benchmark results.

Questions

Does the PowerColor Hellhound Radeon RX 9070 XT fit in the Lian Li A3-mATX?
Yes. The PowerColor Hellhound Radeon RX 9070 XT fits the Lian Li A3-mATX with 75 mm of length to spare. Length 340 of 415 mm, height 142 mm (no published limit), thickness 2.5 of 4 slots.
Is anything not checked?
Lian Li doesn't publish a height limit for the A3-mATX, so that isn't checked.
Where do these numbers come from?
Lian Li's published spec; card size from PowerColor's spec page. Checked October 2026. Makers measure differently and connectors add a few millimetres, so treat a tight result as a reason to measure.

Sources

  • Case: Lian Li’s A3-mATX specifications, checked October 24, 2026. Lian Li lists cards up to 415 mm long and 4 slots thick.
  • Card: PowerColor’s spec page, checked October 23, 2026. PowerColor lists 340 x 142 x 49 mm with the bracket and 327 x 128 x 49 mm without; we use the larger figures.
  • A 25 mm fan under the card limits it to 61 mm (3 slots); a bottom radiator with fans leaves no room for a card.

Check another pair with the fit checker.

Based on published dimensions, not a guarantee. Check cable, cooler and connector clearance before you buy.