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