Specifications of the Motherboard Third-generation AMD RyzenTM desktop processors and AMD RyzenTM4000 G-Series desktop processors are supported. Chipset AMD A520 Memory Type DDR4 Supported Memory Bus Speed 64GB Maximum Memory JEDECS supports DDR4 2667/ 2800/2933/3000/3066/3200/3466/3600/3733/3866/4000/4133/4266/4400/4600+ MHz by A-XMP OC Mode. DDR4 1866/2133/ 2400/2667/ 2800/2933/3000/3066/3200 MHz by JEDECS Support for Multiple GPUs No Ports 1. The LAN port 3. USB 2.0 Ports; USB 3.2 Gen 1 5Gbps Type-A7; DVI-D5. 2. Keyboard/Mouse 4. HDMI 6. USB 3.2 Gen 1 5Gbps Type-A8. Yes, mATX M.2 Slots for Audio Connectors