MSI B850M Mortar

Pros

• High-speed networking with 5G Ethernet and WiFi 7
• Three M.2 slots, including support for Gen5
• Robust VRM design that is often described as 'overkill' for current CPUs
• Generous selection of USB ports
• PCIe slot is located in the first position, which is preferred for many mATX cases

Cons

• Premium pricing compared to other B850M alternatives
• CPU socket and PCIe slot are closer than average, causing clearance issues with some large air coolers
• Awkward SATA port orientation can make cable routing difficult in certain chassis
• The rear M.2 slot may be limited to x2 speeds

Caveats

• Check cooler compatibility carefully; specific models like the Sudokoo SK700 or large Arctic AIOs may have fitment issues
• The board features lime green accents that may clash with certain build aesthetics
• One user reported potential CPU latency/stuttering issues, though this was not a widely repeated claim

Best for

• High-end mATX builds
• Users with high-speed NAS setups requiring 5GbE
• Builders who prioritize future-proofing with WiFi 7 and Gen5 storage

Avoid if

• Using a massive air cooler that lacks a specific GPU offset
• Building a budget-focused system where cheaper B850M options suffice
• You require full x4 bandwidth on every M.2 slot