Is anything not checked?

HYTE doesn't publish a height limit for the Y40, so that isn't checked.

Where do these numbers come from?

HYTE'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 Y40

Will it fit

Does the NVIDIA GeForce RTX 5090 Founders Edition fit in the HYTE Y40?

Fits

Yes. The NVIDIA GeForce RTX 5090 Founders Edition fits the HYTE Y40 with 118 mm of length to spare.

Length304 of 422 mm118 mm spare

Height137 mmNot published

Thickness≈40.6 of 95 mm54.4 mm spare

Exact measurements

Size	NVIDIA	Y40	Room
Length	304 mm	422 mm	118 mm spare
Height	137 mm	—	Not published
Thickness	≈40.6 mm	95 mm	54.4 mm spare

HYTE's published spec

Questions

Does the NVIDIA GeForce RTX 5090 Founders Edition fit in the HYTE Y40?: Yes. The NVIDIA GeForce RTX 5090 Founders Edition fits the HYTE Y40 with 118 mm of length to spare. Length 304 of 422 mm, height 137 mm (no published limit), thickness ≈40.6 of 95 mm.
Is anything not checked?: HYTE doesn't publish a height limit for the Y40, so that isn't checked.
Where do these numbers come from?: HYTE'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: HYTE’s Y40 specifications, checked October 24, 2026. HYTE lists a 422 mm length limit and 4 full slots (95 mm) for the vertically mounted card.
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.
The card mounts vertically on the included riser.

This card in other mid-towers

The card’s size, and all 25 cases

Other RTX 5090 cards in the Y40

Check another pair with the fit checker.

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