PRO B840M-B
PRO B840M-B is engineered with many exclusive features of MSI, PCIe 4.0 M.2, EZ PCIe Clip II, 2.5G LAN, and Front Type-C, ready for the AMD Ryzen 9000 series processors.
PRO BUSINESS ELEGANCE
The PRO Series is tailored to professionals from all walks of life. The lineup features impressive performance and high quality, while aiming to provide users incredible experience. Users who care about productivity and efficiency can definitely count on the MSI PRO Series to assist you with multitasking and increasing efficiency.
READY FOR AI PC
MSI motherboards are designed with advanced hardware and technology, well-supporting the demanding computing usage of gaming and AI. Moreover, we also introduce AI to MSI Center and BIOS, making everything more effortless than before.
AI Engine
provides several categories for you to sync the applications you want to perform and automatically optimizing them to create a comfortable environment.
AI LAN MANAGER
optimizes networking performance and minimizes latency, providing a seamless online experience.
Frozr AI Cooling
automatically adjusts fan duty to make sure the system stays in cool, stable and high performance.
AI Boost
is an MSI exclusive feature. It overclocks NPU to improve higher AI performance.
- Supports AMD Ryzen 9000 / 8000 / 7000 Series Desktop Processors
- Supports DDR5 Memory, Dual Channel DDR5 8000+ MT/s (OC)
- Ultra Performance: Direct 7+2+1 Power System with P-PAK, 8-pin CPU power connector, Core Boost, Memory Boost, 6-layer PCB made by 2oz thickened copper
- EZ DIY: EZ M.2 Clip II and EZ PCIe Clip II
- Lightning Fast Game experience: PCIe 4.0 slot and Lightning Gen 4 x4 M.2
- 2.5G LAN: the remarkable solution for professional and multimedia use, delivering secure, stable, and high-speed networking and data transmission
- Audio Boost: Reward your ears with studio grade sound quality for the most immersive gaming experience
| Brand | |
|---|---|
| Brand | MSI |
| CPU / Processor | |
|---|---|
| Processor Supported | Ryzen 9 |
| Total Processor Supported | 1 |
| Processor Socket | Socket AM5 |
| GPU / Graphics | |
|---|---|
| Onboard Video | CPU Dependent Video |
| Memory / RAM | |
|---|---|
| Memory Technology | DDR5 SDRAM |
| Memory Speed Supported | 4800 MHz |
| Memory Form Factor | UDIMM |
| Number of Memory Slots | 2 |
| Maximum Memory Supported | 128 GB |
| Storage | |
|---|---|
| RAID Supported | Yes |
| RAID Levels | 10 |
| USB Ports | |
|---|---|
| Total Number of Onboard USB P | 7 |
| Number of Onboard USB 2.0 Por | 4 |
| Total Number of USB Ports | 6 |
| Number of USB 2.0 Ports | 2 |
| HDMI Ports | |
|---|---|
| HDMI | Yes |
| Ethernet Port | |
|---|---|
| Number of Network (RJ-45) Por | 1 |
| Gigabit Ethernet | Yes |
| 2.5Gigabit Ethernet | Yes |
| Audio | |
|---|---|
| Audio Channels | 7.1 |
| Size / Dimensions | |
|---|---|
| Form Factor | Micro ATX |
| General Features | |
|---|---|
| Chipset Manufacturer | AMD |
| Chipset Model | B840 |
| AI-powered | Yes |
| Controller Type | Serial ATA/600 |
| Manufacturer | MSI |
| Brand Compatibility | AMD |
| Expansion Slots | |
|---|---|
| Number of PCI Express x16 Slo | 1 |
| Total Number of PCI Express S | 2 |
| Number of PCI Express x1 Slots | 1 |
| Total Number of Expansion Slots | 2 |
| PCI Express Standard | PCI Express 4.0 |
| Video Ports | |
|---|---|
| VGA | Yes |
| Misc Ports | |
|---|---|
| Number of M.2 Interfaces | 2 |
| Number of SATA Interfaces | 4 |