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Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III

Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
36 mo.
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
R2,544
The ASUS PRIME B840M-K motherboard delivers a robust foundation for building high-performance systems, supporting AMD Ryzen 7000/8000/9000 Series processors on the Socket AM5 platform. Designed in a compact micro ATX form factor, it leverages DDR5 memory technology for exceptional speed and efficien... Read More
Stock 2 Code 1715762 Brand ASUS Model 90MB1PK0-M0EAY0 Warranty 3 Years

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Estimated delivery Wednesday, October 7
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The ASUS PRIME B840M-K motherboard delivers a robust foundation for building high-performance systems, supporting AMD Ryzen 7000/8000/9000 Series processors on the Socket AM5 platform. Designed in a compact micro ATX form factor, it leverages DDR5 memory technology for exceptional speed and efficiency, making it suitable for gaming, content creation, and demanding multitasking workloads.

Key features

  • Supports AMD Ryzen 7000/8000/9000 Series processors with Socket AM5
  • DDR5 memory support up to 128 GB across 2 DIMM slots, with speeds up to 8000 MT/s (overclocked)
  • PCIe 4.0 expansion slots for high-speed graphics and storage upgrades
  • Dual storage interfaces: M.2 and SATA III, with RAID 0, 1, 5, 10 support
  • Integrated 2.5 Gigabit Ethernet for fast, reliable wired networking
  • Comprehensive connectivity including USB 3.2 Gen 1 ports and HDMI output
  • Micro ATX form factor for versatile system builds
Key Highlights
  • Compact home or office desktop builds using AMD Ryzen 7000/8000/9000 CPUs
  • Content creation and multitasking with DDR5 memory
  • Small-form-factor gaming rigs with a single PCIe x16 graphics card
  • Workstations requiring fast wired networking (2.5 GbE) and NVMe storage
  • Systems needing RAID 0/1/5/10 for data redundancy or performance
  • Form factor: Micro ATX
  • Chipset: AMD B840
  • Processor socket: Socket AM5 (supports AMD Ryzen 7000/8000/9000 series)
  • Memory support: DDR5-SDRAM, 2 DIMM slots, up to 128 GB total
  • Expansion: 1 × PCIe x16 (Gen3)
  • Storage: M.2 slot(s) and SATA III ports, RAID 0/1/5/10 support
  • Networking: Integrated 2.5 Gigabit Ethernet
  • BIOS: UEFI AMI
Specifications
12V power connector
Yes
ATX Power connector (24-pin)
Yes
Audio output channels
7.1 channels
BIOS memory size
256 Mbit
BIOS type
UEFI AMI
Cables included
SATA
Compatible processor series
AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Component for
PC
CPU fan connector
Yes
Depth
221 mm
DVI-D ports quantity
0
ECC сompatibility
ECC & Non-ECC
EPS power connector (8-pin)
Yes
Ethernet interface type
2.5 Gigabit Ethernet
Ethernet LAN
Yes
Ethernet LAN (RJ-45) ports
1
Front panel audio connector
Yes
Front panel connector
Yes
HDMI ports quantity
1
Maximum internal memory
128 GB
Memory channels
Dual-channel
Memory slots type
DIMM
Motherboard chipset
AMD B840
Motherboard chipset family
AMD
Motherboard form factor
micro ATX
Number of chassis fan connectors
3
Number of COM connectors
1
Number of HDDs supported
4
Number of M.2 (M) slots
2
Number of memory slots
2
Number of RGB LED pin headers
3
Number of SATA III connectors
4
Number of storage drives supported
6
Package depth
263 mm
Package height
51.5 mm
Package weight
1.02 kg
Package width
270 mm
Parallel processing technology support
Not supported
PCI Express x16 (Gen 3.x) slots
1
PCI Express x16 (Gen 4.x) slots
1
Processor manufacturer
AMD
Processor socket
Socket AM5
Product colour
Black
RAID levels
0, 1, 5, 10
RAID support
Yes
RGB LED pin header
Yes
S/PDIF out connector
Yes
Screws included
Yes
Supported memory types
DDR5-SDRAM
Supported processor sockets
Socket AM5
Supported storage drive interfaces
M.2, SATA III
Supported storage drive types
HDD & SSD
TPM connector
Yes
Unbuffered memory
Yes
USB 2.0 connectors
2
USB 2.0 ports quantity
2
USB 3.2 Gen 1 (3.1 Gen 1) connectors
2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
4
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity
0
USB 3.2 Gen 2 (3.1 Gen 2) connectors
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity
0
VGA (D-Sub) ports quantity
0
Wi-Fi
No
Width
244 mm
Windows operating systems supported
Windows 10 x64, Windows 11

Leaflet

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Price history over the last 6 months
Motherboard ASUS PRIME B840M-K — AMD B840, Socket AM5, micro ATX, DDR5, 2 DIMM, 128 GB, 2.5 GbE, M.2, SATA III
Current
R2,544
Lowest
R2,346
Highest
R2,920
Change 24H
+R157   +7%
Week
+R186   +8%
Month
-R299   -11%

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