For NVIDIA GeForce RTX4090, RTX4090 FE, RTX4080 FE 3-slot 2

4090 NVIDIA RTX 4090 ports The GeForce RTX 4090 is an outright massive card with a 3-slot design and measuring in at 304 x 137 mm NVIDIA

Three unused expansion slots Reserving clearance around the graphics card equivalent to an unused expansion slot will typically improve airflow Clearance:

303 slot 24GB GDDR6X 384-bit DP*3HDMI DLSS 3 Powered by NVIDIA DLSS 3, ultra 1-Clip Booster Fan PCI Express-compliant motherboard with one x16 graphics slot

396 slot The card not only takes up 3 slots in your system, but also has rear IO mounting for all three (so 3 screws and the PCIe slot retention clip