Is anything not checked?

Corsair doesn't publish a height or thickness limit for the 4000D Airflow, so those aren't checked.

Where do these numbers come from?

Corsair'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 4000D Airflow

Will it fit

Does the NVIDIA GeForce RTX 5090 Founders Edition fit in the Corsair 4000D Airflow?

Fits

Yes. The NVIDIA GeForce RTX 5090 Founders Edition fits the Corsair 4000D Airflow with 56 mm of length to spare.

Length304 of 360 mm56 mm spare

Height137 mmNot published

Thickness2 slotsNot published

Exact measurements

Size	NVIDIA	4000D Airflow	Room
Length	304 mm	360 mm	56 mm spare
Height	137 mm	—	Not published
Thickness	2 slots	—	Not published

Corsair's published spec

Questions

Does the NVIDIA GeForce RTX 5090 Founders Edition fit in the Corsair 4000D Airflow?: Yes. The NVIDIA GeForce RTX 5090 Founders Edition fits the Corsair 4000D Airflow with 56 mm of length to spare. Length 304 of 360 mm, height 137 mm (no published limit), thickness 2 slots (no published limit).
Is anything not checked?: Corsair doesn't publish a height or thickness limit for the 4000D Airflow, so those aren't checked.
Where do these numbers come from?: Corsair'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: Corsair’s 4000D Airflow specifications, checked October 24, 2026. Corsair lists a 360 mm length limit and 'GPUs under 340 mm' with a front-mounted AIO; 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.
With a front-mounted AIO radiator Corsair says cards under 340 mm fit.

This card in other mid-towers

The card’s size, and all 25 cases

Other RTX 5090 cards in the 4000D Airflow

Check another pair with the fit checker.

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