Supports 1st, 2nd and 3rd Gen AMD Ryzen / Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon Graphics / Athlon with Radeon Vega Graphics and A-series / Athlon X4 Desktop Processors for Socket AM4
Supports 1st, 2nd and 3rd Gen AMD Ryzen / Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon Graphics / Athlon with Radeon Vega Graphics and A-series / Athlon X4 Desktop Processors for Socket AM4
Chipsets
Chipset
AMD B450
Memory
Number of Memory Slots
2x288pin (DDR4)
Memory Standard
Support DDR4 1866/ 2133/ 2400/ 2667Mhz(by JEDEC) For AMD Ryzen Gen3 (R5/R7/R9) - 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3733/ 3866/ 4000/ 4133 MHz (by A-XMP OC MODE) For AMD Other CPU - 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE) Dual channel memory architecture Supports ECC UDIMM memory (non-ECC mode) Support non-ECC UDIMM memory
Maximum Memory Supported
64GB
Channel Supported
Dual Channel
Expansion Slots
PCI Express 3.0 x16
1 x PCIe 3.0 x16 slot Supports x16 speed - 1st, 2nd and 3rd Gen AMD Ryzen Supports x8 speed - Ryzen with Radeon Vega Graphics - 2nd Gen AMD Ryzen with Radeon Graphics - A-series - Athlon X4 Supports x4 speed - AMD Athlon with Radeon Vega Graphics
PCI Express x1
PCIe 2.0 x1 slots
Storage Devices
Serial ATA (SATA)
4 x SATA 6Gb/s
M.2
1 x M.2 slot (Key M) Supports PCIe 3.0 x4 and SATA 6Gb/s - 1st, 2nd and 3rd Gen AMD Ryzen - Ryzen with Radeon Vega Graphics - 2nd Gen AMD Ryzen with Radeon Graphics Supports PCIe 3.0 x2 and SATA 6Gb/s - AMD Athlon with Radeon Vega Graphics - A-series - Athlon X4 Supports 2242/2280/22110 storage devices
SATA RAID
0/1/10
Onboard Video
Onboard Video Chipset
Supported only by CPU with integrated graphic: 1 x DVI-D port, supports a maximum resolution of 1920x1200@60Hz 1 x HDMI 2.0b with HDR port, supports a maximum resolution of 4K @60Hz
Only support when using the processor with Graphicss Maximum shared memory of 2048 MB Graphics specifications may vary depending on the CPU installed.
Onboard Audio
Audio Chipset
Realtek ALC892/ALC897 Codec
Audio Channels
7.1 Channels
Onboard LAN
LAN Chipset
Realtek 8111H
Max LAN Speed
1Gbps
Rear Panel Ports
Back I/O Ports
1 x DVI-D / 1 x HDMI / 1 x LAN (RJ45) / 2 x PS/2 / 2 x USB 2.0/1.1 / 3 x Audio Jacks / 4 x USB 3.2 Gen 1 Type-A
Internal I/O Connectors
Onboard USB
2 x USB 2.0 connectors (supports additional 4 USB 2.0 ports) 1 x USB 3.2 Gen1 connector (supports additional 2 USB 3.2 Gen1 ports)
Other Connectors
1 x 4-pin CPU fan connector 1 x 4-pin system fan connector 1 x Front panel audio connector 2 x Front panel connectors 1 x TPM module connector 1 x Chassis Intrusion connector 1 x Serial port connector 1 x Clear CMOS jumper
Physical Spec
Form Factor
Micro ATX
LED Lighting
None RGB
Dimensions (W x L)
9.3" x 7.9"
Power Pin
1 x 24-pin ATX main power connector 1 x 4-pin ATX 12V power connector
Software Feature
Windows 11
Supported
Features
Features
Supports 1st, 2nd and 3rd Gen AMD Ryzen / Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon Graphics / Athlon with Radeon Vega Graphics and A-series / Athlon X4 Desktop Processors for Socket AM4
Supports DDR4 Memory, up to 4133 (OC) MHz
Turbo M.2: Running at PCI-E Gen3 x4 maximizes performance for NVMe based SSDs.
Audio Boost: Reward your ears with studio grade sound quality.
X-Boost: Software that auto-detects and allows you to boost the performance of any storage or USB device.
Core Boost: With premium layout and fully digital power design to support more cores and provide better performance.
Additional Information
First Listed on Newegg
August 13, 2026
Customer Reviews of the MSI B450M-A PRO MAX
There are no reviews yet.
Do you own this product?
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.