MSI ATX motherboard for AMD PRO B550-S WIFI6E DDR4 AM4 DSP0000043229

Motherboard Features MSI PRO B550-S WIFI6E DDR4 AM4
The MSI PRO B550-S WIFI6E is an ATX motherboard designed for systems with AMD Ryzen processors and DDR4 memory. Equipped with the AMD B550 chipset, Wi-Fi 6E connectivity and Bluetooth 5.3, it provides a versatile platform for work, productivity and gaming computers. Its PCIe 4.0 support, two M.2 slots and numerous USB connections allow you to configure a system with fast storage and extensive upgrade options.
AMD B550 chipset and compatibility with Ryzen processors
Thanks to its AM4 socket and AMD B550 chipset, this motherboard supports various generations of AMD Ryzen desktop processors. It is a suitable choice for building a new computer or upgrading a compatible configuration while making the most of the platform’s expansion options.

Chipset : AMD B550.
Socket : AMD AM4.
Compatible processors: AMD Ryzen 5000, 5000 G, 4000 G and 3000 series for desktop computers.
FORMAT: ATX.

Up to 128 GB of DDR4 memory with A-XMP support
The MSI PRO B550-S WIFI6E features four DDR4 slots with a maximum capacity of 128 GB, providing flexibility for work, multitasking and gaming configurations. Dual Channel support and A-XMP profiles allow you to take advantage of high memory frequencies through overclocking, depending on the processor and installed modules.

Memory slots : 4 x DDR4 DIMM.
Maximum capacity : 128 GB.
Supported frequencies with A-XMP OC: 2667, 2800, 2933, 3000, 3066, 3200, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400, 4533, 4600, 4733, 4800 and 4866+ MHz.
Maximum 1DPC 1R speed: up to 4800+ MT/s.
Maximum 1DPC 2R speed: up to 3866+ MT/s.
Maximum 2DPC 1R speed: up to 4000+ MT/s.
Maximum 2DPC 2R speed: up to 3600+ MT/s.
Compatibility: JEDEC speeds, Dual Channel and non-ECC, unbuffered memory.
Memory overclocking: supports A-XMP OC mode.
DIMM slot design: single-sided retention clips.

Memory frequencies and compatibility may vary depending on the processor and configuration used. We recommend consulting MSI’s published list of compatible memory.
PCIe 4.0 connectivity and expansion options
With three PCI Express expansion slots, this motherboard offers various options for installing graphics cards and other compatible components. Its primary slot supports PCIe 4.0 x16 with compatible processors, allowing you to take advantage of this interface’s bandwidth.

PCI_E1: PCIe 4.0 x16, connected to the processor.
PCI_E2: PCIe 3.0 x16 physical slot, operating at up to x4 via the chipset.
PCI_E3: PCIe 3.0 x1, connected to the chipset.
Total: 2 PCIe x16 slots and 1 PCIe slot x1.

PCIe compatibility depends on the installed processor. In addition, installing a PCIe SSD in the second M.2 slot disables the PCI_E2 slot.
M.2 PCIe 4.0 storage and SATA connections
The MSI PRO B550-S WIFI6E has two M.2 slots and four 6 Gb/s SATA ports, making it easy to combine high-speed SSDs with additional storage devices. The first M.2 slot supports PCIe 4.0 x4 with compatible processors and also M.2 SATA drives, while the second offers PCIe 3.0 x4 connectivity.

M.2_1 slot: PCIe 4.0 x4 or SATA mode, connected to the processor.
M.2_1 formats: 22110, 2280, 2260 and 2242.
M.2_2 slot: PCIe 3.0 x4, connected to the chipset.
M.2_2 formats: 2280, 2260 and 2242.
SATA connections: 4 x SATA 6 Gb/s.
RAID for SATA drives: RAID 0, RAID 1 and RAID 10.
RAID for M.2 NVMe drives: RAID 0 and RAID 1.

M.2 slot features may vary depending on the installed processor. RAID support lets you configure multiple compatible drives to prioritize performance or data redundancy, depending on the selected level.
Wi-Fi 6E, Bluetooth 5.3 and Gigabit Ethernet connection
Connectivity is one of the highlights of this motherboard, which features Wi-Fi 6E support for the 2.4, 5 and 6 GHz bands, as well as Bluetooth 5.3 for connecting compatible wireless peripherals and devices. It also has a Gigabit Ethernet connection for wired networks.

Wi-Fi: Wi-Fi 6E.
Compatible bands: 2.4 GHz, 5 GHz and 6 GHz.
Wireless standards: IEEE 802.11 a/b/g/n/ac/ax.
Wireless configuration: 1T1R.
Additional technology: MU-MIMO RX.
Wi-Fi module: preinstalled in an M.2 Key-E slot.
Bluetooth: version 5.3.
Ethernet controller: Realtek RTL8111H.
LAN speed: 1 Gb/s.

Use of the 6 GHz Wi-Fi band requires compatibility with Windows 11 and is subject to the regulations in each country. The Bluetooth version may be updated according to the specifications of the wireless chipset manufacturer.
USB connections up to 10 Gb/s and HDMI output
Thanks to its range of connections, this motherboard lets you use peripherals, external storage drives and USB-C devices with different transfer requirements. It features USB ports of up to 10 Gb/s on the rear panel and internal connections for enabling additional ports in compatible cases.

Rear USB 2.0: 4 ports.
Front USB 2.0: 4 ports via internal connectors.
Rear 5 Gb/s Type-A USB: 2 ports.
Front 5 Gb/s Type-A USB: 2 ports via an internal connector.
Front 5 Gb/s Type-C USB: 1 port via an internal connector.
Rear 10 Gb/s Type-A USB: 1 port.
Rear 10 Gb/s Type-C USB: 1 port.
Video output : 1 x HDMI 1.4.
Maximum HDMI resolution: 4K at 30 Hz.

The HDMI output only works with processors that include integrated graphics. Its image performance may vary depending on the installed CPU model.
High-definition audio with 7.1-channel sound
The motherboard features the Realtek ALC897 audio codec, which supports high-definition audio of up to 7.1 channels. This configuration provides connection options for speakers, headphones and compatible audio systems, both for entertainment and everyday use.

Codec: Realtek ALC897.
Audio: 7.1-channel high definition.
Connectivity: rear audio connectors and JAUD front audio header.

Internal connectors for cooling, lighting and expansion
The MSI PRO B550-S WIFI6E offers numerous internal connectors for fans, cooling and RGB lighting systems. This layout makes it easy to organise system components and connect various compatible accessories, including case fans, cooling systems and LED strips.

Main power: 1 ATX_PWR connector.
Processor power: 1 CPU_PWR connector.
Processor fan: 1 CPU_FAN connector.
Cooling: 1 combined Pump/Sys Fan connector.
System fans: 4 SYS_FAN connectors.
Front panel: 2 JFP connectors.
Chassis intrusion detection: 1 JCI connector.
Front audio: 1 JAUD connector.
Serial port: 1 JCOM connector.
ARGB lighting: 2 JARGB_V2 Addressable connectors V2 RGB LED.
RGB lighting: 1 JRGB connector.
Security: 1 TPM header compatible with TPM 2.0.
Internal USB 2.0: connections for 4 ports.
Internal USB 5 Gb/s Type-A: connections for 2 ports.
Internal USB 5 Gb/s Type-C: connection for 1 port.

EZ Debug LED diagnostics to facilitate assembly
The motherboard features four EZ Debug LED indicators that help identify potential issues during computer startup. This feature is especially useful when assembling a system, replacing components or checking that the configuration is working properly.

Diagnostic system: MSI EZ Debug LED.
Number of indicators : 4 LED.
Purpose: identification of potential system startup issues.

Rear panel with peripheral and network connections
The rear I/O panel brings together the main ports for connecting external devices, compatible monitors, networks and audio equipment. Its layout combines USB Type-A and Type-C connectivity with HDMI, Ethernet and connections for the integrated wireless module.

4 x USB 2.0 Type-A.
2 x USB 5 Gb/s Type-A.
1 x USB 10 Gb/s Type-A.
1 x USB 10 Gb/s Type-C.
1 x HDMI.
1 x Port LAN RJ-45.
Connections for Wi-Fi and Bluetooth.
Analogue audio connectors.

ATX form factor and Windows compatibility
Its ATX form factor of 243.84 x 304.8 mm allows it to be installed in cases compatible with this standard, providing space for its expansion slots and internal connectors. It also supports 64-bit Windows 10 and Windows 11, adapting to different usage needs.

Form factor: ATX.
Dimensions: 243.84 x 304.8 mm.
Compatible operating systems: 64-bit Windows 11 and 64-bit Windows 10.
MAKER: MSI.
MODEL : PRO B550-S WIFI6E.