Which Motherboard Has the Most PCIe Slots?

Asus ROG Maximus XI Hero is the best motherboard when it comes to the number of PCIe slots. It has a total of eight slots- four of which are PCIe 3.0 x16 slots that support both NVIDIA SLI and AMD CrossFireX. The other four are PCIe 3.

0 x1 slots for additional expansion cards. This board also has two M.2 slots for ultra-fast SSDs and supports up to 128GB of DDR4 RAM.

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Gigabyte Aorus X299 Gaming 7 is a close second with seven PCIe slots. This board also has four PCIe 3.0 x16 slots for SLI and CrossFireX support, but only three PCIe 3.0 x1 slots.

It does have two M.2 slots like the Asus board, but only supports up to 64GB of DDR4 RAM.

MSI MEG Z390 Godlike comes in third with six PCIe slots. It has four PCIe 3.0 x16 slots and two PCIe 3.

This board also supports up to 128GB of DDR4 RAM and has two M.2 slots for ultra-fast SSDs.

The Asus ROG Maximus XI Hero is the best motherboard when it comes to the number of PCIe slots with a total of eight slots available.