Support for 3rd Gen AMD Ryzen processors and future AMD Ryzen processors with BIOS update Supports DDR4 Memory, up to 4400(OC) MHz Lightning Fast Experience: PCIe 4.0, Lightning Gen4 x4 M.2 with M.2 Shield Frozr, AMD Turbo USB 3.2 Gen 2 Premium Thermal Solution: Extended Heatsink Design with additional choke thermal pad and 7W/mK pad, and M.2 Shield Frozr are built for high performance system and non-stop works Powerful Design: Core Boost, Digital PWM IC, 2oz Thickened Copper PCB, Creator Genie, DDR4 Boost Audio Boost: Reward your ears with studio grade sound quality Multi-GPU: With Steel armor PCI-E slots. Supports 2-Way AMD Crossfire Dragon Center: A brand new software which integrates all MSI exclusive tools with user friendly user interface.  PRO SERIES PRO series helps users work smarter by delivering an efficient and productive experience. Featuring stable functionality and high-quality assembly, PRO series motherboards provide not only optimized professional workflows but also less troubleshooting and longevity. THERMAL SOLUTION FOR MORE CORES AND HIGHER PERFORMANCE With more cores’ processors, thermal and power design is more important to make sure the temperature keeps lower. MSI extended PWM heatsink with 7W/mK thermal pad ensures even high-end processors to run in full speed with MSI motherboards. FAST AND FUTURE-READY STORAGE MSI PRO series motherboards support all the latest storage standards, which allows users to connect any ultra-fast storage device. Higher efficiency makes your work easier. PCB WITH 2OZ THICKENED COPPER An enhanced PCB design with 2oz thickened copper increases conductivity, improving heat dissipation and performance reliability especially during overclocking. Specifications CPU Supports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update. Chipset AMD B550 Chipset Memory 4x DDR4 memory slots, support up to 128GB 1 Supports DDR4 1866/ 2133/ 2400/ 2667/ 2800/ 2933/ 3000/ 3066/ 3200 MHz by JEDEC Supports DDR4 2667/ 2800 /2933 /3000 /3066 /3200 /3466 /3600/ 3733 /3866 /4000 /4133 /4266 /4400 MHz by A-XMP OC MODE 1DPC 1R Max speed 4800 MHz 1DPC 2R max speed 3866 MHZ 2DPC 1R max speed 4000 MHZ 2DPC 2R max speed 3600 MHZ Dual channel memory architecture Supports non-ECC UDIMM memory Supports ECC UDIMM memory (non-ECC mode) Supports un-buffered memory Expansion Slot 1x PCIe 4.0/ 3.0 x16 slot (PCI_E1) 1 1x PCIe 3.0 x16 slot (PCI_E3), supports x4 speed 2 2x PCIe 3.0 x1 slots Multi-GPU Supports 2-Way AMD CrossFire Technology Onboard Graphics 1x HDMI port, supports a maximum resolution of 4096x2160 @24Hz 1 1x DisplayPort, supports a maximum resolution of 4096x2160 @60Hz 1 Maximum shared memory of 16GB Storage 6x SATA 6Gb/s ports 2x M.2 slots (Key M) M2_1 slot (from AMD Processor) Supports PCIe 4.0/ 3.0 x4 1 Supports SATA 6Gb/s Supports 2242/ 2260/ 2280/ 22110 storage devices M2_2 slot (from AMD B550 chipset) Supports PCIe 3.0x4 Supports 2242/ 2260/ 2280 storage devices RAID Supports RAID 0, RAID 1 and RAID 10 for SATA storage devices Supports RAID 0 and RAID 1 for M.2 NVMe storage devices USB AMD B550 Chipset 3x USB 3.2 Gen 1 5Gbps ports (1 Type-C internal connector, and 2 ports are available through the internal USB 3.2 Gen 1 5Gbps connector) 8x USB 2.0 ports (4 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors) AMD Processor 2x USB 3.2 Gen 2 10Gbps ports (1 Type-C port and 1 Type-A port on the back panel) 2x USB 3.2 Gen 1 5Gbps Type-A ports on the back panel Audio 7.1-Channel High Definition Audio LAN 1x Realtek 8111H Gigabit LAN controller Internal Connectors 1x 24-pin ATX main power connector 1x 8-pin ATX 12V power connector 6x SATA 6Gb/s connectors 2x M.2 slots (M-Key) 1x USB 3.2 Gen 1 5Gbps Type-C port 1x USB 3.2 Gen 1 5Gbps connector (supports additional 2 USB 3.2 Gen 1 5Gbps ports) 2x USB 2.0 connectors (supports additional 4 USB 2.0 ports) 1x 4-pin CPU fan connector 1x 4-pin water-pump fan connector 6x 4-pin system fan connectors 1x Front panel audio connector 2x System panel connectors 1x Chassis Intrusion connector 1x 4-pin RGB LED connector 2x 3-pin RAINBOW LED connectors 1xTPM module connector 1x Clear CMOS jumper Back Panel Ports Keyboard / Mouse DisplayPort LAN HD Audio Connectors Flash BIOS Button USB 2.0 HDMI USB 2.0 USB 3.2 Gen 1 5Gbps Type-A USB 3.2 Gen 2 10Gbps Type-A C Dimensions ATX Form Factor 12 in. x 9.6 in. (30.5 cm x 24.4 cm)