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Compare MSI PRO B840M-P WIFI6E vs PRO B840M-B

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  3. MSI PRO B840M-P WIFI6E 🆚 MSI PRO B840M-B
MSI PRO B840M-P WIFI6E and MSI PRO B840M-B are both motherboards with the same Socket (AM5), Form factor (Micro ATX) and Chipset (AMD B840). The main differences are in Supported Memory, Wireless LAN, RAM Slots and Maximum Supported RAM.
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MSI PRO B840M-P WIFI6E AM5 DDR5 8000+ MT/s OC PCIe 4.0 x16 M.2 Gen4 Wi-Fi 6E 2.5G LAN micro ATX
MSI PRO B840M-P WIFI6E
MSI PRO B840M-B AM5 DDR5 8000+ MT/s OC PCIe 4.0 x16 M.2 Gen4 2.5G LAN micro ATX
MSI PRO B840M-B
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Out of Stock
$126.08
Last updated 53 minutes ago.
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$129.99
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$129.99
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Brand
MSI
Brand
MSI
Model
  • PRO B840M-P WIFI6E
  • 7E77-001R
Model
  • PRO B840M-B
  • 7E76-002R
Release Date
📅 June 2025
Release Date
📅 June 2025
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
Price history
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Price history
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Compatible PC parts
Processors ► Memory ► Cases ► CPU Coolers ►
Compatible PC parts
Processors ► Memory ► Cases ► CPU Coolers ►
Socket
AM5
Socket
AM5
Form factor
Micro ATX
Form factor
Micro ATX
Chipset
AMD B840
Chipset
AMD B840
Supported Memory
DDR5
4800Mhz 8000Mhz
Supported Memory
DDR5
4800Mhz 5600Mhz 7200Mhz 8000Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS
** RAM support may also depend on the CPU memory controller
ECC RAM Support
No
ECC RAM Support
No
LAN Chipset
-
LAN Chipset
Realtek 8125 2.5G LAN
Max LAN Speed
-
Max LAN Speed
2.5Gbps
SLI Support
No
SLI Support
No
CrossFire Support
No
CrossFire Support
No
RAID Support
Yes
RAID Support
Yes
Back Connect
No
Back Connect
No
Back I/O Ports
-
Back I/O Ports
  • 1x Clear CMOS Button
  • 1x Flash BIOS Button
  • 1x VGA
  • 1x HDMI
  • 1x 2.5G LAN
  • 4x USB 5Gbps Type-A
  • 2x USB 2.0
  • 3x Audio Connectors.
Wireless LAN
Yes
Wireless LAN
No
Wi-Fi Generation
6E
Wi-Fi Generation
-
PCI-Express x16 Slots
1
PCI-Express x16 Slots
1
PCI-Express x4 Slots
0
PCI-Express x4 Slots
0
PCI-Express x1 Slots
1
PCI-Express x1 Slots
1
SATA 6 Gbps Ports
4
SATA 6 Gbps Ports
4
SATA Express Ports
0
SATA Express Ports
0
M.2 Ports
2
M.2 Ports
2
M.2 Devices support
  • 2260 / 2280 - M Key
  • 2260 / 2280 - M Key
M.2 Devices support
  • 2260 / 2280 - M Key
  • 2260 / 2280 - M Key
RAM Slots
4
RAM Slots
2
Maximum Supported RAM
256 GB
Maximum Supported RAM
128 GB
Onboard USB 2.0
2
Onboard USB 2.0
2
Onboard USB 3.2 Gen 1
1
Onboard USB 3.2 Gen 1
1
Onboard USB 3.2 Gen 2
1
Onboard USB 3.2 Gen 2
1
Onboard USB 3.2 Gen 2x2
0
Onboard USB 3.2 Gen 2x2
0
-

Comparison and key differences summary

Reasons to buy the MSI PRO B840M-P WIFI6E:

  • Wireless LAN Integrated
  • +2 RAM slots
  • +128 GB maximum RAM supported

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Reasons to buy the MSI PRO B840M-B:

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