Every card in the A3-mATX
Will it fit
Does the Gigabyte GeForce RTX 5090 Gaming OC 32G fit in the Lian Li A3-mATX?
Fits
Yes. The Gigabyte GeForce RTX 5090 Gaming OC 32G fits the Lian Li A3-mATX with 73 mm of length to spare.
Length342 of 415 mm73 mm spare
Height152 mmNot published
Thickness≈3.44 of 4 slots0.56 slots spare
Exact measurements
| Size | Gigabyte | A3-mATX | Room |
|---|---|---|---|
| Length | 342 mm | 415 mm | 73 mm spare |
| Height | 152 mm | — | Not published |
| Thickness | ≈3.44 slots | 4 slots | 0.56 slots spare |
Lian Li's published spec
Questions
- Does the Gigabyte GeForce RTX 5090 Gaming OC 32G fit in the Lian Li A3-mATX?
- Yes. The Gigabyte GeForce RTX 5090 Gaming OC 32G fits the Lian Li A3-mATX with 73 mm of length to spare. Length 342 of 415 mm, height 152 mm (no published limit), thickness ≈3.44 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 Gigabyte'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: Gigabyte’s spec page, checked October 23, 2026.
- 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 NR200PDoesn’t fit12 mm too long
- Cooler Master NR200P V2Fits15 mm of length to spare
- FormD T1 V2.5Doesn’t fit17 mm too long
- Fractal Design Era 2Doesn’t fit16 mm too long
- Fractal Design RidgeDoesn’t fit7 mm too long
- Fractal Design TerraDoesn’t fit20 mm too long
- Jonsbo Z20Fits21 mm of length to spare
- Lian Li A4-H2ODoesn’t fit20 mm too long
- Lian Li Q58Doesn’t fit22 mm too long
- NCASE M1 V6.1Doesn’t fit20 mm too long
- NCASE M2TightOnly in the vertical-GPU layout, which limits the CPU cooler to 50 mm (70 mm with a 3-slot card) and needs an SFX or SFX-L power supply
- Phanteks Evolv Shift XTDoesn’t fit18 mm too long
- SilverStone SG13Doesn’t fit72 mm too long
- Sliger CerberusDoesn’t fit12 mm too long
- SSUPD Meshroom S V2TightOnly 1 mm of height 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.