MSI B450-A PRO MAX Review & Specs

MSI B450-A Pro Max AM4 M.2 USB 3 DDR4 D-Sub DVI HDMI Crossfire ATX

MSI B450-A Pro Max AM4 M.2 USB 3 DDR4 D-Sub DVI HDMI Crossfire ATX


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  • 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 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
  • Flash BIOS Button: Simply Use A USB Key To Flash Any Bios Within Seconds, Without Installing A CPU, Memory Or Graphics Card
  • Multi-Gpu: With Steel Armor PCI-E Slots. Supports 2-Way AMD Crossfire

Specifications Overview

Model B450-A PRO MAX
Release Date September 2019

* First availability for purchase, it may not correspond to the actual market launch date.

Series PRO
Socket AM4
Form factor ATX
Chipset AMD B450
Supported Memory DDR4:
1866Mhz 2133Mhz 2400Mhz 2666Mhz 2800Mhz 2933Mhz 3000Mhz 3200Mhz 3466Mhz 3733Mhz 3866Mhz 4000Mhz 4133Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS
** RAM support may also depend on the CPU memory controller
ECC RAM Support
Audio Chipset Realtek ALC892
Audio Channels 7.1 Channels
LAN Chipset Realtek 8111H
Max LAN Speed 10/100/1000Mbps
SLI Support
CrossFire Support
RAID Support
Back I/O Ports
  • 1 x D-Sub
  • 1 x DVI-D
  • 1 x HDMI
  • 1 x LAN (RJ45)
  • 1 x PS/2 Keyboard/Mouse Combo
  • 2 x USB 2.0/1.1
  • 2 x USB 3.1 Gen 1 Type-A
  • 2 x USB 3.1 Gen 2 Type-A
  • 6 x Audio Jacks
Wireless LAN
PCI-Express x16 Slots 2
PCI-Express x4 Slots 0
PCI-Express x1 Slots 4
SATA 6 Gbps Ports 6
SATA Express Ports 0
M.2 Ports 1
M.2 Devices support
  • 2242 / 2260 / 2280 / 22110 - M Key
RAM Slots 4
Maximum Supported RAM 128GB
Onboard USB 2.0 2
Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 0

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