ROG Strix Z490-I Gaming supports up to 64GB DDR4 memory across two slots. OptiMem II technology improves trace layout to significantly reduce vias and crosstalk to enhance memory stability and compatibility, giving memory kits higher frequency margins.
DIMM support
ROG Strix Z490-I Gaming has a unique memory-trace design that supports up to 32 GB per DIMM slot to give you a total memory capacity of 64 GB. With double‑capacity DDR4 DIMM modules, the compact ROG Strix Z490-I matches the memory capacity of four-DIMM motherboard designs.
Two M.2 slots are available, with both supporting SATA and PCIe 3.0 x4 modes. Together, they give you the fastest and most-flexible M.2 interface available.












