Perfect Clearance Achieved
The NVIDIA GeForce RTX 4090 (304.0mm) easily clears the Phanteks Enthoo Pro 2 RGB's 503.0mm maximum GPU length.
Detailed Compatibility Analysis
Will the NVIDIA GeForce RTX 4090 fit inside a Phanteks Enthoo Pro 2 RGB?
Yes, it fits! The NVIDIA GeForce RTX 4090 comes in at 304.0mm long, leaving plenty of room inside the Phanteks Enthoo Pro 2 RGB (which supports up to 503.0mm).
Will it overheat?
Airflow will be excellent. The 199.0mm gap provides more than enough clearance for positive pressure to circulate around the NVIDIA GeForce RTX 4090. Just make sure your front intake fans on the Phanteks Enthoo Pro 2 RGB are configured correctly.
Installation Tips
When installing a card of this size, always double-check your front panel cooling setup. If you plan to install a thick front-mounted AIO liquid cooler radiator in the Phanteks Enthoo Pro 2 RGB, you must subtract the radiator's thickness (usually 27-30mm) from your 199.0mm remaining space.
Frequently Asked Questions
Does the Phanteks Enthoo Pro 2 RGB support vertical GPU mounting?
Many modern cases support vertical mounting via an optional PCIe riser cable. However, mounting a thick card like the NVIDIA GeForce RTX 4090 vertically can push the fans dangerously close to the glass side panel, choking airflow. Always check the case manual for specific slot spacing.
What power supply (PSU) do I need for the NVIDIA GeForce RTX 4090?
You should refer to the official manufacturer recommended PSU wattage. When building in the Phanteks Enthoo Pro 2 RGB, ensure your PSU is not longer than the case's basement shroud clearance, especially if you plan to keep the hard drive cage installed.
How do I calculate clearance if I add a front liquid cooler?
If you install an AIO liquid cooler in the front of the Phanteks Enthoo Pro 2 RGB, you must subtract the thickness of the radiator (usually 27mm) and the fans (usually 25mm) from the total 503.0mm clearance.