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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

  • ProcessorCore i9 / i7 / i5 / i3 (11th / 10th Gen, LGA1200)
  • ChipsetIntel B460
  • Form factorMicro ATX
  • CPU socketLGA 1200
  • Onboard video chipSupported only by CPU with integrated graphic
  • Memory slot count4 × 288pin (DDR4)
  • 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.

How it compares

Measured against everything we stock in Motherboards for Intel CPUs, at today’s prices. Recalculated every night.

Price $65.99
Cheaper than about 73% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameMSI
Model nameMAG B460M MORTAR
Processor
ProcessorCore i9 / i7 / i5 / i3 (11th / 10th Gen, LGA1200)
CPU socketLGA 1200
ChipsetIntel B460
Memory
Memory slot count4 × 288pin (DDR4)
Supported memoryDDR4 2933
Max supported RAM128 GB
Memory channelsDual Channel
Storage
SATA ports6 x SATA 6Gb/s
M.2 slots2 x M.2
Optane memory supportYes
SATA and RAID support0/1/5/10
Graphics
Onboard video chipSupported only by CPU with integrated graphic
Audio & video
Audio chipRealtek ALC1200
Sound channels7.1 Channels
Connectivity
Ethernet controllerRealtek RTL8125B
Maximum network speed2.5 Gbit/s
Ports & slots
PCIe 3.0 x16 slots2 x PCI Express 3.0 x16
PCIe x1 slots1 x PCI Express x1
Onboard USB headers3 x USB 3.2 + 4 x USB 2.0
Power
Power connectors24 Pin
Size & build
Form factorMicro ATX
Width and length9.6 in × 9.6 in
More details
LightingRGB

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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