B550 GAMING GEN3 Supports AMD Ryzen™ 5000 & 3000 Series desktop processors (not compatible with AMD Ryzen™ 5 3400G & Ryzen™ 3 3200G) and AMD Ryzen™ 4000 G-Series desktop processors Supports DDR4 Memory, up to 4400(OC) MHz Lightning Fast Game experience: Turbo M.2 Gen3 x4, AMD Turbo USB 3.2 GEN 2 Enhanced Power Design: Core Boost, DDR4 Boost MULTI-GPU: With STEEL ARMOR PCI-E slots. Supports AMD Crossfire™ Flash BIOS Button with Optmized ClearCMOS Function: Simply use a USB key to flash any BIOS within seconds. Restore the BIOS to the default settings without any additional actions. Audio Boost: Reward your ears with studio grade sound quality CPU Supports AMD Ryzen™ 5000 Series, 5000 G-Series, 4000 G-Series, and 3000 Series processors Processor socket AM4 CHIPSET AMD B550 Chipset MEMORY 4x DDR4 memory slots, supporting up to 128GB*Supports 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDECSupports DDR4 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3600/ 3733/ 3866/ 4000/ 4133/ 4266/ 4400+ MHz by A-XMP OC MODE1DPC 1R max speed 4400 MHz1DPC 2R max speed 3733 MHz2DPC 1R max speed 3866 MHz2DPC 2R max speed 3466 MHzDual channel memory architectureSupports non-ECC UDIMM memorySupports ECC UDIMM memory (non-ECC mode)Supports un-buffered memory*Please refer www.msi.com for more information on compatible memory. EXPANSION SLOTS 2x PCIe x16 slotsPCI_E1 slot (From CPU)Supports PCIE 3.0 x16PCI_E4*(From B550 chipset)Supports PCIe 3.0 x44x PCIe x1 slotsPCI_E2, E3, E5 and E6 slots (From B550 chipset)Supports PCIe 2.0 X1*PCI_E4 will run x1 speed when installing devices in PCI_E2/ PCI_E3/ PCI_E5 slot. MULTI-GPU Supports AMD CrossFire™ Technology ONBOARD GRAPHICS 1x DVI-D port, support a maximum resolution of 1920x1200 @60Hz*1x HDMI™ 2.0b port, supports a maximum resolution of 4096x2160 @30Hz, 2560x1600 @60Hz */**Maximum shared memory of 16 GB*Available only on processors featuring integrated graphics.**Graphics specifications may vary depending on the CPU installed. SATA PORTS 6x SATA 6Gb/s ports (From B550 chipset) M.2 SSD SLOTS 1x M.2 slot (Key M)M2_1 slot (From CPU)Supports PCIe 3.0 x4Supports SATA 6Gb/sSupports 2260/ 2280/ 22110 storage devices RAID Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices AUDIO Realtek ALC897 Codec 7.1-Channel High Definition Audio LAN 1x Realtek RTL8111H LAN controller POWER CONNECTORS 1x 24-pin ATX main power connector1x 8-pin ATX 12V power connector INTERNAL USB CONNECTORS 1x USB 3.2 Gen 1 5Gbps connector (From B550 chipset)Supports additional 2 USB 3.2 Gen 1 5Gbps ports2x USB 2.0 connectors (From B550 chipset)Supports additional 4 USB 2.0 ports FAN CONNECTORS 1x 4-pin CPU fan connector1x 4-pin water-pump fan connector4x 4-pin system fan connectors SYSTEM CONNECTORS 1x Front panel audio connector2x System panel connectors1x Chassis Intrusion connector1x TPM module connector1x Serial port connector1x Parallel port connector JUMPERS 1x Clear CMOS jumper LED FEATURES 2x 4-pin RGB LED connectors4x EZ Debug LED BACK PANEL PORTS Keyboard / MouseUSB 3.2 Gen 1 5Gbps Type-ALANAudio ConnectorsFlash BIOS ButtonUSB 2.0DVI-DHDMIUSB 3.2 Gen 2 10Gbps Type-AMPG B550 GAMING PLUS I/O CONTROLLER NUVOTON NCT6797 Controller Chip HARDWARE MONITOR CPU/ System/ Chipset temperature detectionCPU/ System/ Pump fan speed detectionCPU/ System/ Pump fan speed control FORM FACTOR ATX Form Factor12 in. x 9.6 in. (30.5 cm x 24.4 cm) BIOS FEATURES 1x 256 Mb flashUEFI AMI BIOSACPI 6.1, SMBIOS 2.8Multi-language SOFTWARE MSI