Supports AMD 3rd Ryzen TM (Matisse/ Renoir) processors AMD B550 single chip architecture Supports 2-DIMM DDR4-4933+ (OC)/4800 (OC)/4600 (OC)/4400 (OC)/4000 (OC)/3800 (OC)/3600 (OC)/3200 (OC) /2933/2667/2400/2133/1866 Supports USB (Universal Serial Bus) 3.2 Gen 1 Supports PCIe M.2 4.0 (64 Gb/s) Supports HDMI 4K resolution AMD B550 chipset AMD B550 is the high-end chipset for overclockers & tweakers who need robust platforms. This chip provides the ultimate low-level control to its users & delivers ultimate graphics card bandwidth. It also supports PCI-E Gen 4 bandwidth Hi-Fi Ground BIOSTAR Hi-Fi Ground (Golden Line ) is noise-blocking multi-layer PCB design to isolates analog audio signals from digital sources. Unique PCB layout is ideal for exceptional clarity & high fidelity sound. HDMI 4K2K The new 4K2K resolution enables high-definition image display with four times the resolution of full HD, 4K2K display is faithfully express bright, highly detailed content that fills the entire screen with lifelike images. Connectivity with PCs via a single HDMI cable for displaying 4K2K data DX12 Direct X 12 introduces the next version of Direct 3D, the graphics API at the heart of Direct X. Direct 3D is one of the most critical pieces of a game or game engine, & weve redesigned it to be faster & more efficient than ever before. Direct 3D 12 enables richer scenes, more objects, & full utilization of modern GPU hardware.