ASUS PRIME B840M-A-CSM
AM5, AMD B840, mATXPrice in EUR including VAT
Delivered between 6-1-2026 and 7-1-2026
More than 10 pieces in stock at supplier
More than 10 pieces in stock at supplier
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Product details
Asus Prime Series motherboards are expertly designed to unleash the full potential of AMD Ryzen 9000 processors. The Prime B840M-A-CSM motherboard offers users and PC DIY builders a range of performance optimisations via intuitive software and firmware functions. Designed to be "Advanced AI PC-ready", it offers the performance and connectivity required for demanding AI applications.
Processor family | AMD 7000 Series |
Memory type | DDR5 RAM |
Mainboard features | Clear CMOS Button, COM Port Header, Front panel audio connector, S/PDIF header |
Internal connection options | M.2 (3x), S-ATA III (4x) |
Number of memory modules (RAM) | 4x |
Item number | 53632620 |
Manufacturer | ASUS |
Category | Motherboards |
Manufacturer no. | 90MB1J10-M0EAYC |
Release date | 25-11-2024 |
Form factor | Micro ATX (mATX) |
Socket | AM5 |
Chipset | AMD B840 |
Mainboard features | Clear CMOS Button, COM Port Header, Front panel audio connector, S/PDIF header |
Operating system compatibility | Windows 10 |
BIOS type | UEFI AMI |
Processor family | AMD 7000 Series |
Memory form factor | DIMM |
Number of pins | 288x |
Number of memory modules (RAM) | 4x |
Max. memory (RAM) | 256 GB |
Memory chip | DDR5 SDRAM |
Max. RAM OC | 7600 MHz |
Supported memory speed | 7600 MHz |
Memory type | DDR5 RAM |
RAM buffer | Unbuffered |
Video connections | DisplayPort (1x), HDMI (1x) |
Video connection version | Display port 1.4, HDMI 2.1 |
Network connections | RJ45 2.5 Gigabit Ethernet (1x) |
Ethernet controller brand | Realtek |
Ethernet controller | Gigabit Ethernet |
Max. port speed | 2.50 Gbit/s |
Audio channel | 7.1 Channel |
Audio Connections | Headphone output (1x), Jack 3.5mm Line In (1x) |
RAID configuration | 0, 1, 10, 5 |
Internal connection options | M.2 (3x), S-ATA III (4x) |
Expansion slot | PCI Express x16 (Gen 4) (1x) |
PCI express version (max.) | 4 |
Number of fan connector | 4 |
USB ports | USB-A, USB-C |
Exact USB ports | USB-A 2.0 (4x), USB-A 3.1 Gen 1 (2x), USB-C 3.2 Gen 1 (1x) |
Power connectors | 24-pin ATX, 8-pin EATX 12V |
Country of origin | China |
Manufacturer commitment | RE100, SBTi |
Manufacturer compensation | According to RE100, the manufacturer ASUS fully compensates for its energy consumption, leading to a reduction in emissions. |
CO₂-Emission | |
Climate contribution |
Scope of delivery | Sata Cables, Screws |
Length | 244 mm |
Width | 244 mm |
Height | 244 mm |
Weight | 910 g |
Product Safety |
Length | 27.50 cm |
Width | 27.50 cm |
Height | 6.80 cm |
Weight | 1.34 kg |
Specifications may include unverified machine translations.
14-day cancellation right
30-day right of return
30-day right of return
24 Months statutory warranty
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Reviews & Ratings
Statutory warranty score
How often does a product of this brand in the «Motherboards» category have a defect within the first 24 months?
Source: Galaxus- 1.MSI2,5 %
- 2.ASUS2,6 %
- 2.Gigabyte2,6 %
- 4.AsRock2,8 %
- 5.Supermicro2,9 %
Statutory warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Galaxus- 1.Supermicro1 day
- 2.AsRock3 days
- 3.MSI4 days
- 4.Gigabyte6 days
- 5.ASUS7 days
Return rate
How often is a product of this brand in the «Motherboards» category returned?
Source: Galaxus- 1.MSI4,4 %
- 2.Gigabyte4,6 %
- 3.ASUS4,8 %
- 4.AsRock6 %
- 5.Supermicro7,6 %
Source: Galaxus