Business elegance
The PRO series is tailored to professionals from all walks of life. The range offers impressive performance and high quality while aiming to provide users with an incredible experience. Users who value productivity and efficiency can definitely rely on the MSI PRO series to assist in multitasking and increasing efficiency.
MSI motherboards are equipped with advanced hardware and technology that optimally support the demanding computing requirements of gaming and AI.
Direct 7+2+1 power design
Unleash and maintain maximum performance with a VRM design consisting of a total of 7+2+1 digital power phases. With an 8-pin power connector, the PRO B840M-B is ready for the challenges of compute-intensive tasks.
Chipset heat sink
The chipset heatsink is designed to reduce dust and noise and is able to maintain high heat dissipation efficiency.
High bandwidth and low latency network
MSI's premium networking solution offers incredible data transfer speeds for demanding users.
Processor family | Ryzen 7th Gen, Ryzen 8th Gen, Ryzen 9th Gen |
Memory type | DDR5 RAM |
Number of memory modules (RAM) | 2 x |
Internal connection options | M.2 PCIe (2x), S-ATA III (4x) |
Mainboard features | RGB header |
Item number | 58523935 |
Manufacturer | MSI |
Category | Motherboards |
Manufacturer no. | 7E76-002R |
Release date | 13.5.2025 |
External links |
Form factor | Micro ATX (mATX) |
Socket | AM5 |
Chipset | AMD B840 |
Mainboard features | RGB header |
Operating system compatibility | Windows |
BIOS type | UEFI AMI |
Processor family | Ryzen 7th Gen, Ryzen 8th Gen, Ryzen 9th Gen |
Memory form factor | DIMM |
Number of memory modules (RAM) | 2 x |
Max. memory (RAM) | 128 GB |
Memory chip | DDR5-5200, DDR5-5600 |
Max. RAM OC | 8000 MHz |
Supported memory speed | 4800 MHz, 5600 MHz, 8000 MHz |
Memory type | DDR5 RAM |
RAM buffer | Unbuffered |
Video connections | HDMI (1x), VGA (1x) |
Video connection version | HDMI 2.1 |
Network connections | RJ45 2.5 Gigabit Ethernet (1x) |
Ethernet controller brand | Realtek |
Ethernet controller | Realtek RTL8125 |
Max. port speed | 2.50 Gbit/s |
Chip | Realtek ALC897 |
Audio channel | 7.1 Channel |
RAID configuration | 0, 1, 10 |
Internal connection options | M.2 PCIe (2x), S-ATA III (4x) |
Expansion slot | PCI Express x16 (2x) |
PCI express version (max.) | 4 |
Number of fan connector | 5 |
USB ports | USB-A |
Exact USB ports | USB-A 2.0 (2x), USB-A 3.2 Gen 1 (4x) |
Country of origin | China |
Manufacturer commitment | SBTi |
CO₂-Emission | |
Climate contribution |
Length | 243.80 mm |
Width | 226 mm |
Length | 28.20 cm |
Width | 26.50 cm |
Height | 7.30 cm |
Weight | 965 g |
How often does a product of this brand in the «Motherboards» category have a defect within the first 24 months?
Source: Digitec GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec GalaxusHow often is a product of this brand in the «Motherboards» category returned?
Source: Digitec Galaxus