Specifications of the Motherboard Processors Supported AMD RyzenTM 5000 Series, Ryzen^ 5000 G-Series, Ryzen™ 4000 G-Series, and RyzenTM 3000 Series Processors are supported by AMD Socket AM4. Chipset AMD A520 Maximum Memory of Type DDR4 Memory Memory Bus Speed for 64GB Up to 64 GB of system memory (32 GB for a single DIMM) can be supported by two DDR4 DIMM sockets. Support for DDR4 memory modules at frequencies of 5100 MHz, 4800 MHz, 4600 MHz, 4400 MHz, 4266 MHz, 4133 MHz, 4000 MHz, 3866 MHz, 3733 MHz, 3600 MHz, 3466 MHz, 3400 MHz, 3200 / 2933 / 2667 / 2400 / 2133 MHz Memory architecture with two channels ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules are supported. CPU support for ECC memory (ECC mode) varies. Support for DIMM 1Rx8/2Rx8/1Rx16 non-ECC Un-buffered memory modules Support for memory modules with the Extreme Memory Profile (XMP) Port 1 is for the PS/2 keyboard and mouse. One D-Sub port One DVI-D port 1 x HDMI port Four USB