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Motherboards

Asus PRIME B840M-A WIFI-CSM AM5 mATX Motherboard

Brand: Asus · Model: PRIME B840M-A WIFI-CSM

Updated

Asus Motherboards

Specifications

Memory

Type DDR5
Slots 4 x DIMM slots
Maximum Memory Max. 192GB
Supported Memory Supports up to 7600+MT/s (OC) with Ryzen 9000 & 8000 & 7000 Series Processors, ECC and Non-ECC, Un-buffered DIMM

Graphics

Graphics 2 x DisplayPort**, 1 x HDMI™ port***

General

Audio Realtek 7.1 Surround Sound High Definition Audio CODEC, Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking, - Supports up to 24-Bit/192 kHz playback, Audio Features, - Audio Shielding, - Premium audio capacitors, - Dedicated audio PCB layers, * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
BIOS 256 Mb Flash ROM, UEFI AMI BIOS
Chipset AMD B840 Chipset
Form Factor micro-ATX Form Factor, 9.6 inch x 9.6 inch (24.4 cm x 24.4 cm)
Supported CPU AMD Socket AM5 for AMD Ryzen 9000 & 8000 & 7000 Series Desktop Processors
Bundled Software ASUS Exclusive Software, Armoury Crate, - Aura Creator, - Aura Sync, - Fan Xpert 2+, - Power Saving, ASUS DriverHub, ASUS GlideX, TurboV Core, ASUS CPU-Z, Adobe Creative Cloud (Free Trial), Norton 360 Deluxe (60 Days Free Trial), WinRAR (40 Days Free Trial), UEFI BIOS, ASUS EZ DIY, - ASUS CrashFree BIOS 3, - ASUS EZ Flash 3, - ASUS UEFI BIOS EZ Mode, - ASUS MyHotkey
Special Features ASUS 5X PROTECTION III, - DIGI+ VRM, - LANGuard, - Overvoltage protection, - SafeSlot Core+, - Stainless-steel back I/O, ASUS Q-Design, - Q-Antenna, - Q-Dashboard, - Q-DIMM, - Q-LED Core, - Q-Slot, ASUS Thermal Solution, - M.2 heatsink, - VRM heatsink design, ASUS EZ DIY, - BIOS FlashBack button, - BIOS FlashBack LED, - Pre-mounted I/O shield, Aura Sync, - Addressable Gen 2 headers

Expansion Slots

M.2 Socket Total supports 3 x M.2 , (Key M), type 2242/2260/2280
PCI AMD Ryzen™ 9000 & 7000 Series Desktop Processors*, 1 x PCIe 4.0 x16 slot (supports x16 mode), AMD Ryzen™ 8000 Series Desktop Processors, 1 x PCIe 4.0 x16 slot (supports x8/x4 mode)**, AMD B840 Chipset, 2 x PCIe 3.0 x16 slots (support x1 mode)

Ports & Connector

Audio 3 x Audio jacks
HDMI 1x HDMI
LAN Port (s) 1 x Realtek 2.5Gb Ethernet, ASUS LANGuard
RAID AMD RAIDXpert2 Technology, Ryzen 9000 Series Processors: RAID 0/1/5/10, Ryzen 8000 Series Processors: RAID 0/1, Ryzen 7000 Series Processors: RAID 0/1/10
TPM (Trusted Platform Module) 1 x SPI TPM header (14-1 pin)
USB (s) Rear USB (Total 7 ports), 2 x USB 10Gbps ports (2 x Type-A), 1 x USB 5Gbps port (1 x USB Type-C®), 4 x USB 2.0 ports (4 x Type-A), Front USB (Total 7 ports), 1 x USB 5Gbps connector (supports USB Type-C®), 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports, 2 x USB 2.0 headers support 4 additional USB 2.0 ports, * USB Type-C® power delivery output: max. 5V/3A
Wireless Communication module Wi-Fi 6E, 2x2 Wi-Fi 6E (802.11ax), Supports 2.4/5/6GHz frequency band, Bluetooth v5.3

Warranty: 03 Years Warranty

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Prices seen in Bangladesh

SellerPriceSeen on
Skyland Shop ৳29,500 November 2, 2026
Century Computer Shop ৳29,550 October 31, 2026

Prices as published by each seller on the date shown. They change often; confirm with the seller before you buy.

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