MSI B450M MORTAR MAX motherboard supports up to Ryzen 9 Adopt chipse 4xDDR4t Socket AM4 PCI-E 3.0 Max 128GB 2×M.2

CPU Socket Type 

AM4

CPU Type

Ryzen Series

Chipset 

AMD B450

Number of Memory Slots

4x288pin (DDR4)

Memory Standard

Supports 1866/ 2133/ 2400/ 2667Mhz (by JEDEC)
For AMD Ryzen Gen3 (R5/R7/R9)
Supports 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3733/ 3866/ 4000/ 4133 MHz (by A-XMP OC MODE)
For AMD Other CPU
Supports 2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE)

Maximum Memory Supported

128GB

Channel Supported 

Dual Channel

PCI Express 3.0 x16 

1 x PCIe 3.0 x16 slot (PCI_E1)
Supports x16 speed with 1st, 2nd and 3rd Gen AMD Ryzen processors
Supports x8 speed with Ryzen with Radeon Vega Graphics and 2nd Gen AMD Ryzen with Radeon Graphics processors
Supports x4 speed with AMD Athlon with Radeon Vega Graphics Processors

PCI Express 2.0 x16

1 x PCIe 2.0 x16 slot (PCI_E4, supports x4 mode)

PCI Express x1

2 x PCIe 2.0 x1 slots

SATA 6Gb/s 

4 x SATA 6Gb/s

M.2

2 x M.2

Audio Channels 

7.1 Channels

Max LAN Speed

10/100/1000Mbps

PS/2 

1 x PS/2 keyboard/mouse port

HDMI 

1 x HDMI

RJ45

1 x RJ45

DisplayPort

1 x DisplayPort

USB 3.1

6 x USB 3.1

USB 1.1/2.0

6 x USB 2.0

USB Type-C

1 x USB 3.1

S/PDIF Out 

1 x Optical

Audio Ports

5 Ports

Onboard USB

2 x USB 2.0

Form Factor

m-ATX