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Dark green micro-ATX board with silver heatsinks and black PCIe slots

MSI

MSI MAG B460M MORTAR Intel motherboard

SKU CH-WZCR-PSVXY

Micro-ATX LGA 1200 board with Intel B460 chipset, four DDR4 slots up to 128 GB, dual PCIe 3.0 x16, six SATA ports, two M.2 sockets, 2.5 Gbps LAN and 7.1-channel audio

  • CPU Socket TypeLGA 1200
  • CPU TypeCore i9 / i7 / i5 / i3 (11th / 10th Gen, LGA1200)
  • ChipsetIntel B460
  • Onboard Video ChipsetSupported only by CPU with integrated graphic
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardDDR4 2933
  • Supports 10th and 11th Gen Intel Core CPUs on LGA 1200 socket
  • Four DDR4 slots allow up to 128 GB at 2933 MHz dual-channel
  • Two M.2 slots and six SATA ports give flexible storage options
  • Realtek RTL8125B provides 2.5 Gbps wired networking
  • Realtek ALC1200 delivers 7.1-channel high-definition audio

Socket LGA 1200 B460 Micro ATX

The MSI MAG B460M MORTAR is a Micro ATX motherboard built on the Intel B460 chipset for LGA 1200 processors. It supports 10th and 11th Gen Core i9, i7, i5 and i3 CPUs. The board provides four 288-pin DDR4 slots with dual-channel architecture and a maximum capacity of 128 GB.

Straightforward install with CPU memory limits

Installation follows the standard Micro ATX pattern: mount the board, seat the CPU, clip in DDR4 modules and connect SATA or M.2 drives. The main catch is the memory ceiling linked to the processor tier. Core i7 and i9 CPUs allow DDR4 2933, while Core i5 and lower are limited to DDR4 2666. Builders who pair a faster kit with a lesser CPU will see the speed drop automatically.

Budget builders wanting 2.5 Gbps LAN and RAID

This board suits system integrators and DIYers who need six SATA 6Gb/s ports, two M.2 slots, Intel Optane readiness and SATA RAID 0/1/5/10 on a compact platform. The 2.5 Gbps Realtek LAN and 7.1-channel Realtek ALC1200 audio cover modern connectivity and sound without extra cards. Users needing Wi-Fi, Bluetooth, more PCIe lanes or overclocking headroom should look at Z-series or feature-rich B-series alternatives.

Highlights

  • Supports 10th and 11th Gen Intel Core CPUs on LGA 1200 socket
  • Four DDR4 slots allow up to 128 GB at 2933 MHz dual-channel
  • Two M.2 slots and six SATA ports give flexible storage options
  • Realtek RTL8125B provides 2.5 Gbps wired networking
  • Realtek ALC1200 delivers 7.1-channel high-definition audio

Specifications

BrandMSI
ModelMAG B460M MORTAR
CPU Socket TypeLGA 1200
CPU TypeCore i9 / i7 / i5 / i3 (11th / 10th Gen, LGA1200)
ChipsetIntel B460
Onboard Video ChipsetSupported only by CPU with integrated graphic
Number of Memory Slots4x288pin (DDR4)
Memory StandardDDR4 2933
Maximum Memory Supported128GB
Channel SupportedDual Channel
PCI Express 3.0 x162 x PCI Express 3.0 x16
PCI Express x11 x PCI Express x1
Serial ATA (SATA)6 x SATA 6Gb/s
M.22 x M.2
Intel Optane ReadyYes
SATA RAID0/1/5/10
Audio ChipsetRealtek ALC1200
Audio Channels7.1 Channels
LAN ChipsetRealtek RTL8125B
Max LAN Speed2.5Gbps
Onboard USB3 x USB 3.2 + 4 x USB 2.0
Other Connectors1 x 4-pin CPU fan connector1 x 4-pin water pump connector2 x 4-pin system fan connectors1 x front panel audio connector2 x system panel connectors1 x TPM module connector1 x Chassis Intrusion connector1 x Clear CMOS jumper1 x 4-pin RGB LED connector1 x 3-pin RAINBOW LED connector1 x TBT connector *1 x RTD3 connector** Thunderbolt card need support RTD3
Form FactorMicro ATX
LED LightingRGB
Dimensions (W x L)9.6" x 9.6"
Power Pin24 Pin
FeaturesSupports 10th Gen Intel Core / Pentium Celeron processors for LGA 1200 socketSupports DDR4 Memory, up to 2933 MHz(Max)Enhanced Power Design: 12+1+1 Duet Rail Power System, Core Boost, DDR4 BoostPremium Thermal Solution: Extended Heatsink Design and M.2 Shield Frozr are built for high performance system and non-stop gaming experience2.5G LAN with LAN Manager: Upgraded network solution for professional and multimedia use. Delivers a secure, stable and fast network connectionTurbo M.2: Running at PCI-E Gen3 x4 maximizes performance for NVMe based SSDsPre-installed I/O Shielding: Better

Questions about this item

How do I confirm the 2.5Gbps LAN is active after I build the system?

Open the network adapter status in Windows or your OS and verify the link speed shows 2.5 Gbps; the Realtek RTL8125B controller reports the negotiated rate there.

Which cables and accessories ship with the board and what must I source myself?

The box includes the motherboard, I/O shield, SATA cables and documentation; you must supply the LGA 1200 CPU, DDR4 memory modules, M.2 or SATA storage, and a Micro ATX compatible case and power supply.

Should I pick DDR4 2933 or 2666 modules for my Core i5 10th Gen build?

With a 10th Gen Core i5 the memory controller tops out at 2666 MHz, so DDR4 2666 kits are the correct match; 2933 modules will run but downclock to 2666.

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