Is anything not checked?

Jonsbo doesn't publish a height or thickness limit for the Z20, so those aren't checked.

Where do these numbers come from?

Jonsbo's published spec; card size from MSI'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 Z20

Will it fit

Does the MSI GeForce RTX 5070 Ti 16G Ventus 3X OC fit in the Jonsbo Z20?

Fits

Yes. The MSI GeForce RTX 5070 Ti 16G Ventus 3X OC fits the Jonsbo Z20 with 60 mm of length to spare.

Length303 of 363 mm60 mm spare

Height121 mmNot published

Thickness≈2.41 slotsNot published

Exact measurements

Size	MSI	Z20	Room
Length	303 mm	363 mm	60 mm spare
Height	121 mm	—	Not published
Thickness	≈2.41 slots	—	Not published

Jonsbo's published spec

Rather have it built?

We build the RTX 5070 Ti into small PCs by hand, each tested and shipped with its own benchmark results.

Respec Mini N3 Ultra$3,349AMD Ryzen 7 9800X3D · NCASE M2

Questions

Does the MSI GeForce RTX 5070 Ti 16G Ventus 3X OC fit in the Jonsbo Z20?: Yes. The MSI GeForce RTX 5070 Ti 16G Ventus 3X OC fits the Jonsbo Z20 with 60 mm of length to spare. Length 303 of 363 mm, height 121 mm (no published limit), thickness 2.41 slots (no published limit).
Is anything not checked?: Jonsbo doesn't publish a height or thickness limit for the Z20, so those aren't checked.
Where do these numbers come from?: Jonsbo's published spec; card size from MSI'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: Jonsbo’s Z20 specifications, checked October 24, 2026. Jonsbo lists cards up to 363 mm long, 'depends on other hardware configurations'.
Card: MSI’s spec page, checked October 23, 2026.
Jonsbo publishes a length limit only, and says it depends on the rest of the build.

This card in other small cases

The card’s size, and all 25 cases

Other RTX 5070 Ti cards in the Z20

Check another pair with the fit checker.

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