Is anything not checked?

Lian Li doesn't publish a height or thickness limit for the O11 Vision, so those aren'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.

Every card in the O11 Vision

Will it fit

Does the NVIDIA GeForce RTX 5090 Founders Edition fit in the Lian Li O11 Vision?

Fits

Yes. The NVIDIA GeForce RTX 5090 Founders Edition fits the Lian Li O11 Vision with 126 mm of length to spare.

Length304 of 430 mm126 mm spare

Height137 mmNot published

Thickness2 slotsNot published

Exact measurements

Size	NVIDIA	O11 Vision	Room
Length	304 mm	430 mm	126 mm spare
Height	137 mm	—	Not published
Thickness	2 slots	—	Not published

Lian Li's published spec

Questions

Does the NVIDIA GeForce RTX 5090 Founders Edition fit in the Lian Li O11 Vision?: Yes. The NVIDIA GeForce RTX 5090 Founders Edition fits the Lian Li O11 Vision with 126 mm of length to spare. Length 304 of 430 mm, height 137 mm (no published limit), thickness 2 slots (no published limit).
Is anything not checked?: Lian Li doesn't publish a height or thickness limit for the O11 Vision, so those aren'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 O11 Vision specifications, checked October 24, 2026. Lian Li lists a 430 mm length limit; no height or thickness limit.
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.

This card in other mid-towers

The card’s size, and all 25 cases

Other RTX 5090 cards in the O11 Vision

Check another pair with the fit checker.

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