ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX

SKU
90MB1PK0-M0EAY0
Login for pricing
Available for backorder
PRIME B840M-K AMD B840 micro-ATX (DDR5, M.2, Realtek 2.5Gb Ethernet, HDMI, Front USB 5Gbps Type-C, Aura Sync)
More Information
SKU 90MB1PK0-M0EAY0
EAN 4711636435048
Manufacturer ASUS
Availability N
B840M-K
ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B840M-K 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.
Internal I/O
Number of M.2 (M) slots2
USB 3.2 Gen 2 (3.1 Gen 2) connectors0
Front panel connectorYes
12V power connectorYes
Supported storage drive interfacesM.2, SATA III
USB 2.0 connectors2
USB 3.2 Gen 1 (3.1 Gen 1) connectors2
TPM connectorYes
S/PDIF out connectorYes
Number of SATA III connectors4
Number of COM connectors1
Number of chassis fan connectors3
Front panel audio connectorYes
EPS power connector (8-pin)Yes
CPU fan connectorYes
ATX Power connector (24-pin)Yes
RGB LED pin headerYes
Number of RGB LED pin headers3
Technical details
Motherboard chipset familyAMD
Motherboard chipsetAMD B840
Supported processor socketsSocket AM5
Parallel processing technology supportNot supported
Motherboard form factormicro ATX
Component forPC
Audio
Audio output channels7.1 channels
Performance
Number of HDDs supported4
Supported storage drive typesHDD & SSD
Windows operating systems supportedWindows 10 x64, Windows 11
Motherboard chipset familyAMD
Motherboard chipsetAMD B840
RAID levels0, 1, 5, 10
Supported processor socketsSocket AM5
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Processor
Processor manufacturerAMD
Compatible processor seriesAMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor socketsSocket AM5
Processor socketSocket AM5
Memory
Number of memory slots2
Memory slots typeDIMM
Supported memory typesDDR5-SDRAM
Memory channelsDual-channel
Maximum internal memory128 GB
Unbuffered memoryYes
ECC сompatibilityECC & Non-ECC
Storage controllers
Number of HDDs supported4
Supported storage drive typesHDD & SSD
Supported storage drive interfacesM.2, SATA III
RAID levels0, 1, 5, 10
Number of storage drives supported6
RAID supportYes
Graphics
Parallel processing technology supportNot supported
Rear panel I/O ports
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity0
USB 2.0 ports quantity2
VGA (D-Sub) ports quantity0
HDMI ports quantity1
Ethernet LAN (RJ-45) ports1
DVI-D ports quantity0
Network
Ethernet LANYes
Wi-FiNo
Ethernet interface type2.5 Gigabit Ethernet
Features
Windows operating systems supportedWindows 10 x64, Windows 11
Motherboard chipset familyAMD
Motherboard chipsetAMD B840
Supported processor socketsSocket AM5
Audio output channels7.1 channels
Motherboard form factormicro ATX
Component forPC
Product colourBlack
Expansion slots
Number of M.2 (M) slots2
PCI Express x16 (Gen 3.x) slots1
PCI Express x16 (Gen 4.x) slots1
BIOS
BIOS typeUEFI AMI
BIOS memory size256 Mbit
Packaging data
Package width270 mm
Package depth263 mm
Package height51.5 mm
Package weight1.02 kg
Software
Windows operating systems supportedWindows 10 x64, Windows 11
Weight & dimensions
Package width270 mm
Package depth263 mm
Package height51.5 mm
Package weight1.02 kg
Width244 mm
Depth221 mm
Packaging content
Cables includedSATA
Screws includedYes
Other features
Package width270 mm
Package depth263 mm
Package height51.5 mm
Package weight1.02 kg