ASUS
ASUS PRIME B840-PLUS WIFI-CSM AMD B840 Socket AM5 ATX
Part number PRIME B840-PLUS WIFI-CSM
ASUS PRIME B840-PLUS WIFI-CSM AMD AM5 B840 ATX COMMERCIAL CSM MOTHERBOARD, ADVAN
AMD Socket AM5 AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series PC ATX AMD B840 7.1 channels DDR5-SDRAM 4 DIMM Maximum internal memory: 192 GB HDD & SSD M.2, SATA III RAID support Number of storage drives supported: 7 BIOS type: UEFI AMI 256 Mbit 2.5 Gigabit Ethernet Wi-Fi Wi-Fi 6E (802.11ax) Bluetooth 5.3
Manufacturer ASUS
Part number PRIME B840-PLUS WIFI-CSM
Condition New
Category System Components › Motherboards 1GPA category Hardware
Manufacturer MSRP
$199.99
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Stock and final pricing are confirmed by your rep on the quote. Catalog dated September 30, 2026.
Overview
PRIME B840-PLUS WIFI-CSM
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B840-PLUS WIFI-CSM motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.
Specifications
Processor
Processor manufacturer AMD Processor socket Socket AM5 Compatible processor series AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Memory
Supported memory types DDR5-SDRAM Number of memory slots 4 Memory slots type DIMM Memory channels Dual-channel ECC сompatibility ECC & Non-ECC Supported memory clock speed (max) 7600 MHz Maximum internal memory 192 GB Unbuffered memory Yes
Storage controllers
Supported storage drive types HDD & SSD Supported storage drive interfaces M.2, SATA III Number of HDDs supported 4 Number of storage drives supported 7 RAID support Yes RAID levels 0, 1, 5, 10
Graphics
Parallel processing technology support Not supported
Internal I/O
USB 2.0 connectors 2 USB 3.2 Gen 1 (3.1 Gen 1) connectors 2 Number of SATA III connectors 4 S/PDIF out connector Yes Front panel audio connector Yes ATX Power connector (24-pin) Yes CPU fan connector Yes Number of CPU fan connectors 1 Number of chassis fan connectors 4 Chassis intrusion connector Yes Peripheral (Molex) power connectors (4-pin) 1 EPS power connector (8-pin) Yes Number of COM connectors 1 TPM connector Yes Thunderbolt headers 1 12V power connector Yes
Rear panel I/O ports
USB 2.0 ports quantity 4 USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 2 USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity 1 USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity 1 Ethernet LAN (RJ-45) ports 1 HDMI ports quantity 1 DisplayPorts quantity 1 Microphone in Yes WiFi-AP antenna jack 2
Network
Ethernet LAN Yes Ethernet interface type 2.5 Gigabit Ethernet Wi-Fi Yes Top Wi-Fi standard Wi-Fi 6E (802.11ax) Bluetooth Yes Bluetooth version 5.3
Features
Motherboard chipset AMD B840 Audio output channels 7.1 channels Product colour Multicolour Component for PC Motherboard form factor ATX Motherboard chipset family AMD Windows operating systems supported Windows 10 x64, Windows 11
Expansion slots
PCI Express x1 (Gen 3.x) slots 1 PCI Express x16 (Gen 3.x) slots 3 Number of M.2 (M) slots 3
BIOS
BIOS type UEFI AMI BIOS memory size 256 Mbit
Weight & dimensions
Width 305 mm Depth 244 mm
Product photos and overview provided by the manufacturer through Icecat. Confirm specifications with your rep before ordering.
