Exact GPU / case compatibility

Does ZOTAC GAMING RTX 5090 SOLID OC fit in NZXT H9 Flow?

Likely fits. Likely fits in the default no-front-radiator check. Length margin 105.3mm, side/cable margin 31.2mm and thickness margin 22.2mm.

This page checks the exact GPU against the selected case with no front radiator installed. Use the interactive calculator to add your cooling hardware.

Open this exact build in FitMyPC GPU details Case details

Compatibility calculation

Check	Available	Required	Result	Data confidence
GPU length	435mm case limit	329.7mm GPU	PASS · 105.3mm	Manufacturer verified
Height + power cable	205mm case envelope	173.8mm (137.8+36)	PASS · 31.2mm	FitMyPC estimate
GPU thickness	90mm case envelope	67.8mm GPU	PASS · 22.2mm	FitMyPC estimate

Some case clearance fields used by this result are estimates, so treat a pass as a likely fit rather than a manufacturer guarantee. A front radiator can reduce available GPU length and change this answer.

ZOTAC GAMING RTX 5090 SOLID OC manufacturer data

Dimensions stored by FitMyPC: 329.7 × 137.8 × 67.8mm. Power connector: 12V-2x6.

Manufacturer source checked

Verified fields: length, height, thickness, connector

ZOTAC publishes 329.7×137.8×67.8mm, 3.5 slots and a 12V-2x6 input.

Official manufacturer source ↗

Checked 2026-08-29

NZXT H9 Flow manufacturer data

GPU length limit stored by FitMyPC: 435mm. Side-panel and thickness envelopes are displayed separately because manufacturers do not publish these consistently.

Manufacturer source checked

Verified fields: maxGpuLength, radiatorSupport.front, radiatorSupport.top

This database record corresponds to the H9 Flow (2023): 435mm GPU length, 360mm front and 360mm top radiator support.

Official manufacturer source ↗

Checked 2026-08-29

What can change the result?

Front radiator/fan thickness, vertical mounting, drive cages, brackets, connector orientation, motherboard layout and product revisions can affect real-world fit.