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Meet the MSI B450M MORTAR MAX — a compact, feature-rich motherboard built for AMD Ryzen and designed in a versatile micro‑ATX form factor. With a robust B450 chipset and AM4 socket, it delivers solid performance for gaming, content creation, and everyday multitasking.
Key specifications
- CPU Socket Type: AM4
- CPU Type: Ryzen Series
- Chipset: AMD B450
- Memory: 4× DDR4 DIMM slots, up to 128GB total
- Memory Speed Support:
- JEDEC baseline: 1866/2133/2400/2667 MHz
- Ryzen Gen3 (R5/R7/R9): up to 4133 MHz with A-XMP OC mode
- Other AMD CPUs: up to 3466 MHz with A-XMP OC mode
- Expansion Slots:
- PCI Express 3.0 x16 — 1 slot (PCI_E1); supports x16 with 1st–3rd Gen Ryzen
- PCI Express 2.0 x16 — 1 slot (PCI_E4); supports up to x4
- PCIe x1 — 2 x PCIe 2.0 x1
- Storage: 4× SATA 6Gb/s; 2× M.2
- Onboard Audio: 7.1-channel
- LAN: 10/100/1000 Mbps
- Rear Panel Ports:
- PS/2
- HDMI
- DisplayPort
- RJ-45 Ethernet
- USB 3.1 ports (rear): 6
- USB 2.0 ports (rear): 6
- USB Type-C: 1× USB 3.1
- S/PDIF Out (optical)
- 5 audio jacks
- Internal I/O: 2× USB 2.0 headers
- Form Factor: m-ATX
Why it stands out
- Two M.2 slots give you flexible, high-speed storage options alongside 4 SATA drives, ideal for fast boot drives and game libraries.
- Wide memory compatibility and A-XMP OC modes let Ryzen Gen3 CPUs squeeze extra performance from DDR4 while preserving system stability.
- Direct access to a complete set of modern I/O in a compact board, including USB Type-C on the rear panel and 7.1-channel audio for immersive multimedia.
Who should consider this board
- PC builders seeking a compact, capable Ryzen platform with ample memory and storage expansion in a micro‑ATX footprint.
- Gamers and creators who want reliable performance, flexible RAM speeds, and robust I/O without sacrificing case size.
Use cases and applications
- Mid-range gaming rigs powered by Ryzen processors, with room for fast NVMe storage via M.2 and multiple SATA drives for data storage.
- Multi-monitor setups using HDMI and DisplayPort, plus a full range of USB connections for peripherals and external devices.
- Home workstations or media centers that benefit from 7.1-channel onboard audio and gigabit Ethernet for smooth streaming and online collaboration.
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) |
Maximum Memory Supported |
128GB |
Channel Supported |
Dual Channel |
PCI Express 3.0 x16 |
1 x PCIe 3.0 x16 slot (PCI_E1) |
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 |
Frontier General Hardware
MSI B450M Mortar Max Micro ATX Motherboard For AMD Ryzen Gen 3 Socket AM4 With 2 M2 Slots And 128GB RAM
- Regular price
- $176.26
Meet the MSI B450M MORTAR MAX — a compact, feature-rich motherboard built for AMD Ryzen and designed in a versatile micro‑ATX form factor. With a robust B450 chipset and AM4 socket, it delivers solid performance for gaming, content creation, and everyday multitasking.
Key specifications
- CPU Socket Type: AM4
- CPU Type: Ryzen Series
- Chipset: AMD B450
- Memory: 4× DDR4 DIMM slots, up to 128GB total
- Memory Speed Support:
- JEDEC baseline: 1866/2133/2400/2667 MHz
- Ryzen Gen3 (R5/R7/R9): up to 4133 MHz with A-XMP OC mode
- Other AMD CPUs: up to 3466 MHz with A-XMP OC mode
- Expansion Slots:
- PCI Express 3.0 x16 — 1 slot (PCI_E1); supports x16 with 1st–3rd Gen Ryzen
- PCI Express 2.0 x16 — 1 slot (PCI_E4); supports up to x4
- PCIe x1 — 2 x PCIe 2.0 x1
- Storage: 4× SATA 6Gb/s; 2× M.2
- Onboard Audio: 7.1-channel
- LAN: 10/100/1000 Mbps
- Rear Panel Ports:
- PS/2
- HDMI
- DisplayPort
- RJ-45 Ethernet
- USB 3.1 ports (rear): 6
- USB 2.0 ports (rear): 6
- USB Type-C: 1× USB 3.1
- S/PDIF Out (optical)
- 5 audio jacks
- Internal I/O: 2× USB 2.0 headers
- Form Factor: m-ATX
Why it stands out
- Two M.2 slots give you flexible, high-speed storage options alongside 4 SATA drives, ideal for fast boot drives and game libraries.
- Wide memory compatibility and A-XMP OC modes let Ryzen Gen3 CPUs squeeze extra performance from DDR4 while preserving system stability.
- Direct access to a complete set of modern I/O in a compact board, including USB Type-C on the rear panel and 7.1-channel audio for immersive multimedia.
Who should consider this board
- PC builders seeking a compact, capable Ryzen platform with ample memory and storage expansion in a micro‑ATX footprint.
- Gamers and creators who want reliable performance, flexible RAM speeds, and robust I/O without sacrificing case size.
Use cases and applications
- Mid-range gaming rigs powered by Ryzen processors, with room for fast NVMe storage via M.2 and multiple SATA drives for data storage.
- Multi-monitor setups using HDMI and DisplayPort, plus a full range of USB connections for peripherals and external devices.
- Home workstations or media centers that benefit from 7.1-channel onboard audio and gigabit Ethernet for smooth streaming and online collaboration.
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) |
Maximum Memory Supported |
128GB |
Channel Supported |
Dual Channel |
PCI Express 3.0 x16 |
1 x PCIe 3.0 x16 slot (PCI_E1) |
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 |
- Regular price
- $176.26
Meet the MSI B450M MORTAR MAX — a compact, feature-rich motherboard built for AMD Ryzen and designed in a versatile micro‑ATX form factor. With a robust B450 chipset and AM4 socket, it delivers solid performance for gaming, content creation, and everyday multitasking.
Key specifications
- CPU Socket Type: AM4
- CPU Type: Ryzen Series
- Chipset: AMD B450
- Memory: 4× DDR4 DIMM slots, up to 128GB total
- Memory Speed Support:
- JEDEC baseline: 1866/2133/2400/2667 MHz
- Ryzen Gen3 (R5/R7/R9): up to 4133 MHz with A-XMP OC mode
- Other AMD CPUs: up to 3466 MHz with A-XMP OC mode
- Expansion Slots:
- PCI Express 3.0 x16 — 1 slot (PCI_E1); supports x16 with 1st–3rd Gen Ryzen
- PCI Express 2.0 x16 — 1 slot (PCI_E4); supports up to x4
- PCIe x1 — 2 x PCIe 2.0 x1
- Storage: 4× SATA 6Gb/s; 2× M.2
- Onboard Audio: 7.1-channel
- LAN: 10/100/1000 Mbps
- Rear Panel Ports:
- PS/2
- HDMI
- DisplayPort
- RJ-45 Ethernet
- USB 3.1 ports (rear): 6
- USB 2.0 ports (rear): 6
- USB Type-C: 1× USB 3.1
- S/PDIF Out (optical)
- 5 audio jacks
- Internal I/O: 2× USB 2.0 headers
- Form Factor: m-ATX
Why it stands out
- Two M.2 slots give you flexible, high-speed storage options alongside 4 SATA drives, ideal for fast boot drives and game libraries.
- Wide memory compatibility and A-XMP OC modes let Ryzen Gen3 CPUs squeeze extra performance from DDR4 while preserving system stability.
- Direct access to a complete set of modern I/O in a compact board, including USB Type-C on the rear panel and 7.1-channel audio for immersive multimedia.
Who should consider this board
- PC builders seeking a compact, capable Ryzen platform with ample memory and storage expansion in a micro‑ATX footprint.
- Gamers and creators who want reliable performance, flexible RAM speeds, and robust I/O without sacrificing case size.
Use cases and applications
- Mid-range gaming rigs powered by Ryzen processors, with room for fast NVMe storage via M.2 and multiple SATA drives for data storage.
- Multi-monitor setups using HDMI and DisplayPort, plus a full range of USB connections for peripherals and external devices.
- Home workstations or media centers that benefit from 7.1-channel onboard audio and gigabit Ethernet for smooth streaming and online collaboration.
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) |
Maximum Memory Supported |
128GB |
Channel Supported |
Dual Channel |
PCI Express 3.0 x16 |
1 x PCIe 3.0 x16 slot (PCI_E1) |
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 |
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