SKU: PRIME B840-PLUS WIFI-CSM
Availability: In Stock
Brand: ASUS
Category: Motherboards
100% Guarantee Safe Checkout
ASUS PRIME B840-PLUS WIFI-CSM is a high-performance ATX motherboard designed for AMD Socket AM5, supporting AMD Ryzen 9000/8000/7000 Series processors. Engineered with an 8+2+1 phase digital power design and enhanced thermal solutions, this board ensures stable power delivery for everyday computing and light overclocking.
It features 4 DIMM slots supporting up to 192GB of fast DDR5 memory with exclusive AMD EXPO and ASUS Enhanced Memory Profile (AEMP) support, optimizing speed and compatibility. Storage versatility is abundant with three M.2 slots (two PCIe 4.0 x4 and one PCIe 3.0 x4) plus four SATA ports for seamless NVMe and SATA device integration.
Connectivity is future-proof with dual-band Wi-Fi 6E (2x2), Bluetooth, Realtek 2.5 Gb Ethernet LAN, plus multiple rear USB including ultra-fast 10Gbps Type-C and Type-A ports. Display outputs include HDMI and DisplayPort for flexible multi-monitor setups.
Designed with user convenience in mind, the motherboard includes a pre-mounted I/O shield, BIOS FlashBack button, comprehensive cooling support with VRM and M.2 heatsinks, multiple hybrid fan headers, and addressable Gen 2 RGB headers compatible with Aura Sync lighting.
This model is part of the ASUS Corporate Stable Model (CSM) program, offering commercial-grade reliability with a long lifecycle and shipping with ASUS Control Center Express for business environments. It also supports ASUS AI utilities such as AI Advisor and AI Cache Boost on compatible hardware.
Key Benefits:
| Display Outputs | 1x HDMI,1x DisplayPort |
| Rear USB Ports | 1x USB 10Gbps Type-C,1x USB 10Gbps Type-A,multiple USB 5Gbps |
| Ethernet | Realtek 2.5 Gb LAN |
| SATA Ports | 4 |
| Onboard WiFi | Wi-Fi 6E (2x2) |
| M.2 Slot Sizes Supported | 2242\/2260\/2280 |
| M.2 Slots | 3 (2x PCIe 4.0 x4,1x PCIe 3.0 x4) |
| Additional PCIe Slots | PCIe 3.0 x16,PCIe 3.0 x1 |
| PCIe x16 Slots | 1 x PCIe 4.0 x16 (SafeSlot Core+) |
| Supported Memory Profiles | AMD EXPO,ASUS AEMP |
| Memory Channels | Channel |
| Max Memory Capacity | 192GB |
| Memory Slots | 4 DIMM |
| memory_type | DDR5 |
| Form Factor | ATX |
| Socket | AMD Socket AM5 |
| Part Number | MBA-B840-PLUS-WF-CSM |
| Memory Channels | Channel |
| Power Connectors | 8+2+1 phase digital power design |
| bios_flash | BIOS FlashBack,UEFI BIOS |
| Display Outputs | 1 x HDMI, 1 x DisplayPort |
| wi_fi | Wi-Fi 6E (2x2) |
| LAN | Realtek 2.5 Gb LAN |
| M.2 Slots | 3 |
| SATA Ports | 4 |
| PCIe Slots | 1 x PCIe 4.0 x16, 1 x PCIe 3.0 x16, 1 x PCIe 3.0 x1 |
| Memory Slots | 4 |
| max_memory_gb | 192 |
| Chipset | B840 |
| memory_type | DDR5 |
| Form Factor | ATX |
| CPU Socket | AM5 |
| Manufacturer | ASUS |
| Model | PRIME B840-PLUS WIFI-CSM |
| Power Phases | 8+2+1 phase digital power design |
| BIOS Features | BIOS FlashBack,UEFI BIOS |
| Cooling Support | VRM heatsinks,M.2 heatsinks,multiple hybrid fan headers |
| RGB Lighting | Addressable Gen 2 RGB headers (Aura Sync) |
| Commercial Support | ASUS Corporate Stable Model (CSM) |
| Part Number | MBA-B840-PLUS-WF-CSM |