MSI Motherboard PRO B550M-B sAM4 B550 2xDDR4 HDMI DP mATX

Features

MSI PRO B550M-B motherboard is based on the AMD B550 chipset and features Socket AM4. It supports AMD Ryzen 5000 Series, 5000 G-Series, 4000 G-Series, 3000 Series, and 3000 G-Series desktop processors.

Two DDR4 slots support up to 64 GB of memory and dual-channel operation. DDR4 frequencies up to 4600+ MHz are supported in A-XMP OC mode. The specified maximum speed is up to 4600+ MT/s for a 1DPC 1R configuration and up to 3866+ MT/s for 1DPC 2R. JEDEC speeds and non-ECC unbuffered memory are supported.

One PCIe x16 expansion slot is available. PCI_E1 is connected to the CPU and supports up to PCIe 4.0 x16, with the supported specification depending on the installed processor.

Storage connectivity includes two M.2 connectors and four SATA 6 Gb/s ports. M.2_1 is connected to the CPU and supports PCIe 4.0 x4 or SATA devices in 2242, 2260, and 2280 form factors. M.2_2 is connected to the chipset and supports PCIe 3.0 x4 devices in 2280 and 22110 form factors. SATA storage supports RAID 0, RAID 1, RAID 5, and RAID 10, while M.2 NVMe storage supports RAID 0, RAID 1, and RAID 10.

Network connectivity is provided by a Realtek RTL8111H controller with a speed of 1 Gb/s. The audio subsystem uses a Realtek ALC897 codec and supports 7.1-channel audio.

When a processor with integrated graphics is installed, HDMI 2.1 and DisplayPort 1.2 outputs provide resolutions up to 4K at 60 Hz. The rear panel features four USB 5 Gb/s Type-A ports, two USB 2.0 ports, a PS/2 connector, LAN, and three audio jacks. Internal connectors provide USB 2.0, USB 5 Gb/s Type-A, and USB 5 Gb/s Type-C connectivity for the front panel. Four EZ Debug LEDs are provided for system diagnostics.

Technologies (used)

• A-XMP OC memory overclocking
• EZ Debug LED diagnostics
• PCIe 4.0 interface
• PCIe 3.0 interface
• RAID storage arrays
• TPM 2.0 support

Technical Specifications

• Brand: MSI
• Article: 911-7D14-023
• Model: PRO B550M-B
• Chipset: AMD B550
• Socket: AM4
• Supported processors: AMD Ryzen 5000, 5000 G-Series, 4000 G-Series, 3000, 3000 G-Series
• Memory type: DDR4
• Memory slots: 2
• Maximum memory capacity: 64 GB
• DDR4 frequencies in A-XMP OC mode: 2667/2800/2933/3000/3066/3200/3466/3600/3733/3866/4000/4133/4266/4400/4600+ MHz
• Maximum 1DPC 1R speed: up to 4600+ MT/s
• Maximum 1DPC 2R speed: up to 3866+ MT/s
• Memory mode: dual-channel
• Supported memory: non-ECC, unbuffered
• Memory overclocking: A-XMP OC
• Expansion slot: 1 × PCIe x16
• PCI_E1: up to PCIe 4.0 x16, depending on the installed processor
• M.2 connectors: 2
• M.2_1: PCIe 4.0 x4 / SATA, 2242/2260/2280
• M.2_2: PCIe 3.0 x4, 2280/22110
• SATA: 4 × SATA 6 Gb/s
• SATA RAID: RAID 0, RAID 1, RAID 5, RAID 10
• M.2 NVMe RAID: RAID 0, RAID 1, RAID 10
• Audio codec: Realtek ALC897
• Audio: 7.1-channel
• LAN controller: Realtek RTL8111H
• LAN: 1 Gb/s
• Video outputs: HDMI 2.1, DisplayPort 1.2
• Maximum HDMI resolution: 4K, 60 Hz
• Maximum DisplayPort resolution: 4K, 60 Hz
• Rear USB: 2 × USB 2.0, 4 × USB 5 Gb/s Type-A
• Front-panel USB support: 4 × USB 2.0, 2 × USB 5 Gb/s Type-A, 1 × USB 5 Gb/s Type-C
• Fan connectors: 1 × CPU Fan, 1 × System Fan
• Front-panel connectors: 2 × JFP
• Chassis intrusion connector: 1 × JCI
• Front audio connector: 1 × JAUD
• COM connector: 1 × JCOM
• Addressable RGB connectors: 3 × JARGB_V2
• RGB connector: 1 × JRGB
• TPM: connector with TPM 2.0 support
• Diagnostics: 4 × EZ Debug LED

For Whom

• For AMD AM4-based systems
• For configurations with AMD Ryzen processors
• For systems with DDR4 memory
• For configurations with M.2 and SATA storage

Conclusion

MSI PRO B550M-B motherboard combines the AMD B550 chipset, Socket AM4, support for up to 64 GB of DDR4 memory, and a PCIe 4.0 interface. Two M.2 connectors, four SATA 6 Gb/s ports, Gigabit LAN, 7.1-channel audio, HDMI 2.1, DisplayPort 1.2, and USB connectivity provide the core capabilities for building an AMD Ryzen-based system.