MSI · Motherboard

MSI B550 GAMING

B550 · AM4 · ATX · DDR4

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Chipset B550
Form factor ATX
Memory slots 4
Max memory 128 GB
Socket AM4
Memory type DDR4

MSI B550 GAMING is an ATX and B550 chipset motherboard for AM4 processors and DDR4 memory. It came out in 2026.

Released: 2026-06-28
Socket: AM4

Specifications

Key specs

Chipset: B550
Form factor: ATX
Memory slots: 4
Max memory: 128 GB
Socket: AM4
Memory type: DDR4
Released: 2026-06-28
Part number: B550 GAMING
EAN / UPC: 4711377459846

Processor

Processor manufacturer: AMD
Processor socket: Socket AM4
Compatible processor series: AMD Ryzen 3000 Series, AMD Ryzen 4000 Series, AMD Ryzen 5000 Series
Supported processor sockets: Socket AM4

Memory

Supported memory types: DDR4-SDRAM
Number of memory slots: 4
Memory slots type: DIMM
Memory channels: Dual-channel
ECC сompatibility: ECC & Non-ECC
Supported memory clock speeds: 2667,2800,2933,3000,3066,3200,3466,3600,3733,3866,4000,4133,4266,4400,4533,4600,4733,4800,4866 MHz
Supported memory clock speed (max): 4866 MHz
Maximum internal memory: 128 GB
Unbuffered memory: Yes

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Storage controllers

Supported storage drive types: HDD & SSD
Supported storage drive interfaces: M.2, SATA III
Number of HDDs supported: 6
Number of storage drives supported: 8

Graphics

Parallel processing technology support: Not supported
Maximum resolution: 4096 x 2160 pixels

Internal I/O

USB 2.0 connectors: 4
USB 3.2 Gen 1 (3.1 Gen 1) connectors: 2
USB 3.2 Gen 2 (3.1 Gen 2) connectors: 1
Number of SATA III connectors: 6
Total number of SATA connectors: 6
Front panel audio connector: Yes
Front panel connector: Yes
ATX Power connector (24-pin): Yes
CPU fan connector: Yes
Chassis intrusion connector: Yes
TPM connector: Yes
RGB LED pin header: Yes

Rear panel I/O ports

USB 2.0 ports quantity: 4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity: 2
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity: 1
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity: 1
Ethernet LAN (RJ-45) ports: 1
HDMI ports quantity: 1
HDMI version: 1.4
DisplayPorts quantity: 1
DisplayPort version: 1.2

Network

Ethernet LAN: Yes
Ethernet interface type: Gigabit Ethernet
LAN controller: Realtek 8111H

Features

Motherboard chipset: AMD B550
Audio chip: Realtek ALC897
Audio output channels: 7.1 channels
Component for: PC
Motherboard form factor: ATX
Motherboard chipset family: AMD

Expansion slots

PCI Express x1 (Gen 3.x) slots: 1
PCI Express x16 slots: 2
PCI Express x16 (Gen 3.x) slots: 1
PCI Express x16 (Gen 4.x) slots: 1
Number of M.2 (M) slots: 2
1st M.2 largest key size: 22110
1st M.2 highest PCI Express generation: 4.0
2nd M.2 largest key size: 2280
2nd M.2 highest PCI Express generation: 3.0

BIOS

BIOS type: UEFI AMI
BIOS memory size: 256 Mbit
ACPI version: 6.0
System Management BIOS (SMBIOS) version: 2.8

Weight & dimensions

Width: 243.8 mm
Depth: 304.8 mm

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Compatible processors

AM4 socket

AMD Ryzen 5 56006 cores · 12 threads
AMD Ryzen 5 55006 cores · 12 threads
AMD Ryzen 5 5600G6 cores · 12 threads
AMD Ryzen 7 5700X8 cores · 16 threads
AMD Ryzen 5 5600X6 cores · 12 threads
AMD Ryzen 5 5500F6 cores · 12 threads
AMD Ryzen 5 5600F6 cores · 12 threads
AMD Ryzen 5 5600T6 cores · 12 threads

Compatible memory

DDR4

Kingston FURY Beast 8GB (1x8) DDR4-3200 CL168 GB (1x8) · DDR4
Kingston FURY Beast 16GB (2x8) DDR4-3200 CL1616 GB (2x8) · DDR4
VeloxStor 7004-DDR, 8 GB, 1 x 8 GB, DDR4, 3200 MT/s, 288-pin DIMM8 GB (1x8) · DDR4
VeloxStor 7005-DDR, 16 GB, 1 x 16 GB, DDR4, 3200 MT/s, 288-pin DIMM16 GB (1x16) · DDR4
VeloxStor 7006-DDR, 32 GB, 1 x 32 GB, DDR4, 3200 MT/s, 288-pin DIMM32 GB (1x32) · DDR4
VeloxStor 7007-DDR, 8 GB, 1 x 8 GB, DDR4, 3200 MT/s, 288-pin DIMM8 GB (1x8) · DDR4
VeloxStor 7008-DDR, 16 GB, 1 x 16 GB, DDR4, 3200 MT/s, 288-pin DIMM16 GB (1x16) · DDR4
Biwin BXH41632HW1-D16EW 16 GB DDR4 Memory16 GB (2x8) · DDR4

About this product

The B550 GAMING is crafted to offer extensive connectivity, versatile tools, and Wi-Fi solution for gamers seeking a comprehensive experience. Featuring an 1G LAN, USB Type-C 10Gbps and PCIe 4.0 solution, it is ready for 24/7 non-stop gaming optimized for AMD Ryzen™ 5000 Series, 5000 G-Series, 4000 G-Series, and 3000 Series processors. Core Boost technology combines MSI's premium layout and optimized power design which allows for faster and undistorted current delivery to the CPU at pin-point precision. Not only supporting multi-core CPU, also creating the perfect conditions for your CPU overclocking. Transient Voltage Suppressors (TVS) are safety devices used to protect against excessive voltage. All motherboard models of MSI are equipped with TVS. When the voltage abnormally rises, the TVS switches from a high-resistance state to a low-resistance state, diverting the excessive voltage to ground. This helps prevent circuit damage caused by high voltage. The 8-pin, 8-pin, and 24-pin power connectors of MSI motherboards are all designed with solid pins. The solid pin design allows for a more stable transmission of 12V power to the CPU, even when handling high current loads.

Datasheet (PDF)

B550 GAMING vs similar motherboards

	MSI B550 GAMING	MSI PRO B550-S	MSI PRO B550M-P	MSI PRO B550-S WIFI6E
Chipset	B550	B550	B550	B550
Form factor	ATX	ATX	ATX	ATX
Memory slots	4	4	4	4
Max memory	128 GB	128 GB	128 GB	128 GB
Socket	AM4	AM4	AM4	AM4
Memory type	DDR4	DDR4	DDR4	DDR4
Released	2026	2026	2026	2026