MSI ATX motherboard for AMD PRO B550-S DDR4 AM4 DSP0000043230

Motherboard Features MSI PRO B550-S DDR4 AM4
The MSI PRO B550-S is an ATX motherboard designed for building systems with AMD Ryzen processors and DDR4 memory. Equipped with the AMD B550 chipset and AM4 socket, it offers a versatile platform for work, home and gaming computers. It stands out for its PCIe 4.0 compatibility, two M.2 slots, USB connectivity of up to 10 Gbps and expansion options to adapt the system to different needs.
AMD B550 chipset and compatibility with Ryzen processors
Thanks to the AMD B550 chipset and AM4 socket, this motherboard supports systems with different generations of AMD Ryzen processors. Its architecture offers expansion options and access to high-speed storage and expansion technologies, depending on the installed processor.

Chipset : AMD B550.
Socket: AM4.
Compatible with AMD Ryzen Series 5000, 5000 G-Series, 4000 G-Series and 3000 desktop processors.
ATX form factor, 243.84 x 304.8 mm.

Up to 128 GB of DDR4 memory with A-XMP support
The MSI PRO B550-S features four DDR4 slots with a maximum capacity of 128 GB, providing flexibility for multitasking systems, professional applications and video games. It supports dual-channel configurations and A-XMP profiles to take advantage of higher memory frequencies through overclocking.

4 DDR4 DIMM slots with single-sided retention clips.
Maximum capacity : 128 GB.
Supported frequencies: 2667, 2800, 2933, 3000, 3066, 3200, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400, 4533, 4600, 4733, 4800 and 4866+ MHz via A-XMP OC.
Dual Channel compatibility and JEDEC speeds.
Support for unbuffered, non-ECC memory.
Memory overclocking via A-XMP profiles.

Maximum overclocking speeds depend on the memory module configuration:

1DPC 1R: up to 4800+ MT/s.
1DPC 2R: up to 3866+ MT/s.
2DPC 1R: up to 4000+ MT/s.
2DPC 2R: up to 3600+ MT/s.

Compatibility and achievable frequencies may vary depending on the processor and installed memory configuration.
M.2 PCIe 4.0 storage and SATA connections
With two M.2 slots and four 6 Gb/s SATA connections, this motherboard lets you combine high-speed SSDs with higher-capacity storage devices. The first M.2 slot supports PCIe 4.0 x4 with compatible processors, allowing you to take advantage of high-performance NVMe drives for the operating system, programs and games.

2 M.2 slots for SSDs.
M.2_1: CPU-connected, compatible with PCIe 4.0 x4 and SATA mode, formats 22110, 2280, 2260 and 2242.
M.2_2: chipset-connected, compatible with PCIe 3.0 x4, formats 2280, 2260 and 2242.
4 SATA 6 Gb/s ports.
RAID 0, RAID 1 and RAID 10 for SATA drives.
RAID 0 and RAID 1 for M.2 NVMe drives.

Available PCIe specifications depend on the installed processor.
PCI Express slots for graphics cards and expansion
The motherboard has three PCI Express slots for installing graphics cards and other expansion cards. Its primary PCIe 4.0 x16 slot, connected directly to the processor, lets you take advantage of compatible graphics cards, while the additional connections make it easy to expand the computer’s functionality.

2 physical PCI Express x16 slots.
1 PCI Express slot x1.
PCI_E1: PCIe 4.0 up to x16, connected to the CPU.
PCI_E2: PCIe 3.0 up to x4, connected to the chipset.
PCI_E3: PCIe 3.0 up to x1, connected to the chipset.

The available PCIe version depends on the installed processor. In addition, installing a PCIe SSD in the M.2_2 slot disables the PCI_E2 slot.
USB connectivity up to 10 Gbps
The MSI PRO B550-S offers a wide range of USB connections, including USB Type-A and Type-C ports of up to 10 Gbps on the rear panel. It also features internal headers for enabling additional ports on the front of a compatible case.

Back panel : 4 USB 2.0.
Rear panel: 2 USB Type-A ports at 5 Gbps.
Rear panel: 1 USB Type-A port at 10 Gbps.
Rear panel: 1 USB Type-C port at 10 Gbps.
Front connections : 4 USB 2.0.
Front connections: 2 USB Type-A ports at 5 Gbps.
Front connections: 1 USB Type-C port at 5 Gbps.

Gigabit networking and 7.1-channel surround sound
For communications and entertainment, it features a Realtek Gigabit Ethernet network controller and a 7.1-channel high-definition audio system. This combination provides wired connectivity for home and professional networks, along with multichannel audio support for multimedia content and video games.

Network controller: Realtek RTL8111H.
Ethernet connection up to 1 Gbps.
Realtek audio codec ALC897.
7.1-channel high-definition audio.
Audio connectors on the rear panel and JAUD front audio header.

HDMI output with resolution 4K
The motherboard includes an HDMI 1.4 output for connecting monitors and displays compatible with resolutions of up to 4K at 30 Hz. This connection is available only when an AMD processor with integrated graphics is installed.

1 EXIT HDMI 1.4.
Maximum resolution: 4K at 30 Hz.
Requires a processor with integrated graphics.
Graphics features may vary depending on the CPU used.

Internal connectors for cooling and RGB lighting
The MSI PRO B550-S features internal connectors for fans, cooling and RGB lighting, making it easier to organize components inside the system. It includes connections for case fans, a combined pump or fan connector, and addressable RGB headers.

1 ATX_PWR power connector.
1 CPU_PWR power connector.
1 CPU fan connector.
1 combined Pump/Sys Fan connector.
4 system fan connectors.
2 JFP front panel connectors.
1 JCI chassis intrusion detection connector.
1 JAUD front audio connector.
1 JCOM serial port connector.
2 addressable RGB LED connectors JARGB_V2.
1 JRGB connector for RGB lighting.
1 TPM header compatible with TPM 2.0.
Internal connectors for 4 USB 2.0 ports, 2 USB Type-A 5 Gbps ports and 1 USB Type-C 5 Gbps port.

EZ Debug LED diagnostics and Windows compatibility
The four EZ Debug LED indicators make it easier to identify potential problems during system startup, helping to locate issues related to the main components. The motherboard is also compatible with 64-bit Windows operating systems.

4 EZ Debug LED diagnostic indicators.
Compatible with 64-bit Windows 11.
Compatible with 64-bit Windows 10.
TPM header with support for TPM 2.0.

Other specifications and rear panel connections
With its ATX form factor and expansion-oriented connector layout, this motherboard allows different components and peripherals to be integrated into a single system. Its rear I/O panel brings together the main interfaces for monitors, USB devices, networking and audio.

Brand: MSI.
MODEL : PRO B550-S.
FORMAT: ATX.
Dimensions: 243.84 x 304.8 mm.
Chipset : AMD B550.
Socket : AMD AM4.
Compatible memory: DDR4.
Rear panel: USB 2.0, 5 Gbps USB Type-A, 10 Gbps USB Type-A and Type-C ports.
Rear panel: 1 HDMI output.
Rear panel: 1 Gigabit Ethernet RJ45 LAN port.
Rear panel: audio connectors.