4 x DIMM, Max. 64GB, DDR4 2666/2400/2133 MHz Non-ECC, Un-buffered Memory *
Dual Channel Memory Architecture
Supports Intel® Extreme Memory Profile (XMP)
* Refer to www.asus.com
for the Memory QVL (Qualified Vendors Lists).
* The maximum memory frequency supported varies by processor.
* Due to Intel® chipset limitation, this motherboard can only support single-side meomries when four modules are installed and they will run at the maximum transfer rate of DDR4 1866 MHz.
** DDR4 2666MHz and higher memory modules will run at max. 2666MHz on Intel® 8th Gen. 6-core or higher processors.