Every card in the A3-mATX
Will it fit
Does the NVIDIA GeForce RTX 5090 Founders Edition fit in the Lian Li A3-mATX?
Fits
Yes. The NVIDIA GeForce RTX 5090 Founders Edition fits the Lian Li A3-mATX with 111 mm of length to spare.
Length304 of 415 mm111 mm spare
Height137 mmNot published
Thickness2 of 4 slots2 slots spare
Exact measurements
| Size | NVIDIA | A3-mATX | Room |
|---|---|---|---|
| Length | 304 mm | 415 mm | 111 mm spare |
| Height | 137 mm | — | Not published |
| Thickness | 2 slots | 4 slots | 2 slots spare |
Lian Li's published spec
Questions
- Does the NVIDIA GeForce RTX 5090 Founders Edition fit in the Lian Li A3-mATX?
- Yes. The NVIDIA GeForce RTX 5090 Founders Edition fits the Lian Li A3-mATX with 111 mm of length to spare. Length 304 of 415 mm, height 137 mm (no published limit), thickness 2 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 NVIDIA'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: NVIDIA’s spec page, checked October 23, 2026. NVIDIA publishes the slot count, not a thickness in millimetres, and asks for room for a 3-slot (61 mm) card for airflow.
- 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.
This card in other small cases
- Cooler Master NR200PFits26 mm of length to spare
- Cooler Master NR200P V2Fits30 mm of length to spare
- FormD T1 V2.5TightOnly 3 mm of height to spare
- Fractal Design Era 2TightNo height to spare (137 of 137 mm)
- Fractal Design RidgeDoesn’t fit12 mm too tall
- Fractal Design TerraFits18 mm of length to spare
- Jonsbo Z20Fits59 mm of length to spare
- Lian Li A4-H2OFits18 mm of length to spare
- Lian Li Q58Fits16 mm of length to spare
- NCASE M1 V6.1Doesn’t fit12 mm too tall
- NCASE M2Fits55 mm of length to spare
- Phanteks Evolv Shift XTFits20 mm of length to spare
- SilverStone SG13Doesn’t fit34 mm too long
- Sliger CerberusFits26 mm of length to spare
- SSUPD Meshroom S V2Fits28 mm of length to spare
Other RTX 5090 cards in the A3-mATX
Check another pair with the fit checker.
Based on published dimensions, not a guarantee. Check cable, cooler and connector clearance before you buy.