Asus PRIME B850M-A WIFI

Picture may differ from actual product, there can be accessories and parts not supplied with the actual product.
ID: 1227318 Product code: PRIME B850M-A WIFI
In stock 11 units
Warranty: 3 years
199.72 €
Ready for dispatch
tomorrow, 21.08.2025
starting from 1.99 €
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Main product parameters All parameters
  • Series: ASUS Prime
  • Plate size: mATX
  • Chipset: AMD B850
  • Socket: AM5
  • Type: DDR5
  • RAM Slots: 4
  • Built-in Wi-Fi: Ir
  • M.2 ports: 3
Basic information
Series : ASUS Prime
Plate size mATX

The physical size of the motherboard. TopPC.ee offers ATX (full size board), mATX (micro ATX) (a board of reduced size) and miniATX size motherboards. Within the housing of an ATX size computer it is possible to place both ATX and mATX motherboard, however, in the mATX housing it is not possible to place an ATX board.

The ATX board has at least 3 memory slots and at least 5 local slots PCI, which means that a well functioning powerful computer can be built on this board. However, a home or office computer does not need this high number of slots, therefore also microATX will be suitable.

The connector of the power supply unit of the motherboard is the power source socket which are currently of ATX and ATX2.0 standard. ATX is an older standard with a 20pin connector (20 "pins"), and ATX2.0 has 4 additional pins (20+4). The motherboards of ATX standard can operate with a ATX2.0 power supply unit (PSU), however the mother board of ATX2.0 standard requires an ATX2.0 power supply unit.

Form-factor is rather a recommendation. However, prior to buying a mother board you should verify the compatibility of the housing size to the motherboard size and its power supply connector.

Chipset AMD B850

The chip bus is the most important criterion of selecting the motherboard (the system logic chips or the voltage transformers). The chip bus determines the CPUs, memory ports and other parameters that are supported by the motherboard.

Each chipset is directly related to a certain CPU platform which are divided based upon the family of CPUs or the connection point of the CPU.

For verifying which chip bus is suitable for your CPU, etc. you should ask our managers.
Socket AM5
The CPU socket is an important factor in selecting the board; the CPU board must be exactly compatible with the CPU that you want to install with the board. Irrespective of the fact that the CPU fits the socket of the motherboard also the support of this CPU has to be taken into account. For verifying which CPUs are supported by the selected motherboard you should visit the website of the manufacturer of the motherboard, find the CPU support section of the relevant motherboard and verify that the specification of this particular board provides for the support of the CPU that you have selected.
Random-access memory (RAM)
Type : DDR5
RAM Slots 4
The number of available memory slots indicates the number of memory modules (plates) that can be installed in the motherboard.
Memory support DDR5 5600MT/s (8000MT/s OC)

The RAM bus determines what type of RAM is supported by the relevant motherboard.

The bus marking contains the memory type DDRII or DDRIII as well as the maximum memory clock frequency that is supported by the mother board. The type of memory is the most important index, memories of different types are physically different, therefore DDRIII memory cannot be connected to the mother board that supports DDRII memory (except the cases when the motherboard supports both types of memory). However the motherboard that support 800Mhz DDRII memory can work with the memory speeds of DDII667 and DDRII533. The mother board with the memory bus speed below the speed of the memory module will be able to operate as fast as the specified bus speed only, i.e. if the memory bus of the motherboard is DDRII667 and the memory DDRII800 is installed it will operate with the speed of DDRII667.

Graphics card
VGA Port PCI-EXPRESS
VGA port or the video card plug. The VGA port must comply with the specification of the video card port you have selected. Older video cards have an AGP port, new cards are manufacturer with a PCI-EXPRESS (PCI-X) port.AGP and PCI-Xpress video cards are not mutually compatible. Prior to buying the motherboard you should verify the compliance of the video card port of both the motherboard and the video card.
Integrated graphics Only with iGPU-ready APU

The parameter that determines whether a video card has been integrated with the motherboard. An integrated video card is suitable for working with the office software, Internet, watching films and playing simple games. If you wish to use graphics applications, play 3D games and watch 3D animations you would need an additional video card.

An integrated video card uses a fraction of the memory included in the mother board, therefore, if your motherboard has 1Gb memory and in the settings of the video card of the mother board it is stated that it takes 256mb the operating system will display the available memory volume of approximately 700 Mb.
Prior to buying a motherboard with a built-in video card you should verify whether it has an additional video card port for further upgrades if these are required

Ports and equipment
D-Sub : 0
DisplayPort : 2
DVI : 0
HDMI : 1
Integrated sound card : Realtek Audio CODEC
PCI Ports 0
PCI ports present the most popular way of supplementing the computer functions with additional cards (sound, network, communications, video surveillance, etc.). Newer boards, thanks to the PCI-Express standard, have a small number of PCI extension ports, therefore, prior to buying the motherboard you should verify if the number of PCI ports allows the connection of all the PCI cards you need.
Wireless connections
Built-in Bluetooth : Ir
Built-in Wi-Fi : Ir
External ports
External USB 2.0 : 4
External USB Type-C (USB 3.2 Gen2) : 0
External USB Type-C (USB 4.0) : 0
External USB 3.0 (USB 3.2 Gen1) : 2
External USB 3.1 (USB 3.2 Gen2) : 2
Internal ports
Internal A-RGB 5V (3-pin) : 3
Internal RGB 12V (4-pin) : 0
Internal USB 2.0 : 2
Internal USB 3.0 : 1
Internal USB Type-C : 1
M.2 ports : 3
SATA3 ports : 4
More detailed specification
Additional information in manufacturers website Asus PRIME B850M-A WIFI
BIOS - BIOS memory size - 256 Mbit
BIOS - BIOS type - UEFI AMI
Brand - ASUS
BrandPartCode - 90MB1LN0-M0EAY0
Category - Datortehnika :: Datoru komponentes :: Pamatplates
Category - Motherboards
Category 1 - Mainboards & Zubehör
Category 2 - Mainboards - Intel
category_en - Computers & Components > Computer components > Motherboards > AMD motherboards
category_lv - Datortehnika > Datoru komponentes > Pamatplates > AMD mātesplates
category_ru - Datortehnika > Datoru komponentes > Pamatplates > AMD mātesplates
Code - 90MB1LN0-M0EAY0
Desc - Mikroshēmu tips | chipset: AMD B850, Plates formfaktors: Micro ATX, Procesora ražotājs: AMD, Ligzda: AM5, DDR tips: DDR5, Atmiņas sloti: 4, Max atmiņas apjoms: 256 GB, WiFi: Ir, M.2 Pieslēgumi: 3, Garantija: 2 gadi
description_en - The ASUS PRIME B850M-A is a micro-ATX motherboard based on the AMD B850 chipset, designed for the latest AMD Ryzen processors with AM5 socket. It offers stable performance, extensive connectivity, and support for modern memory and storage standards, making it suitable for both office and gaming builds.
Technical specifications: Form factor: micro-ATX Chipset: AMD B850 CPU socket: AM5 (supports AMD Ryzen 7000 series and newer) Memory: 4× DDR5 DIMM, up to 192 GB, up to 6400 MHz (OC) Graphics: integrated graphics support via HDMI/DisplayPort Expansion slots: PCIe 4.0 ×16, PCIe 4.0 ×1 Storage: 2× M.2 PCIe 4.0, 4× SATA 6 Gb/s Networking: Gigabit Ethernet Audio: 7.1-channel HD Audio I/O: USB 3.2 Gen 2, USB 3.2 Gen 1, USB 2.0, audio jacks Cooling: connectors for case fans and AIO pump
description_lv - ASUS PRIME B850M-A ir micro-ATX formāta mātesplate ar AMD B850 čipkopu, paredzēta jaunākās paaudzes AMD Ryzen procesoriem ar AM5 ligzdu. Tā piedāvā stabilu darbību, plašas savienojumu iespējas un atbalsta mūsdienu atmiņas un datu glabāšanas standartus, padarot to piemērotu gan biroja, gan spēļu datoriem.
Tehniskie parametri: Formāts: micro-ATX Čipkopa: AMD B850 CPU ligzda: AM5 (atbalsta AMD Ryzen 7000 sēriju un jaunākus) Atmiņa: 4× DDR5 DIMM, līdz 192 GB, līdz 6400 MHz (OC) Grafika: integrētās grafikas atbalsts caur HDMI/DisplayPort Paplašinājuma sloti: PCIe 4.0 ×16, PCIe 4.0 ×1 Glabāšana: 2× M.2 PCIe 4.0, 4× SATA 6 Gb/s Tīkls: Gigabit Ethernet Audio: 7.1-kanālu HD Audio I/O: USB 3.2 Gen 2, USB 3.2 Gen 1, USB 2.0, audio pieslēgvietas Dzesēšana: pieslēgvietas korpusa ventilatoriem un AIO sūknim
description_ru - ASUS PRIME B850M-A это материнская плата формата micro-ATX на базе чипсета AMD B850, предназначенная для процессоров AMD Ryzen последних поколений с разъёмом AM5. Плата обеспечивает стабильную работу, расширенные возможности подключения и поддержку современных стандартов памяти и хранения данных, что делает её подходящим выбором как для офисных, так и для игровых систем.
Технические характеристики: Форм-фактор: micro-ATX Чипсет: AMD B850 Процессорный разъём: AM5 (поддержка AMD Ryzen 7000 серии и выше) Память: 4× DDR5 DIMM, поддержка до 192 ГБ, частоты до 6400 МГц (OC) Графика: поддержка встроенной графики CPU через HDMI/DisplayPort Слоты расширения: PCIe 4.0 ×16, PCIe 4.0 ×1 Накопители: 2× M.2 PCIe 4.0, 4× SATA 6 Gb/s Сеть: Gigabit Ethernet Аудио: 7.1-канальное HD Audio Интерфейсы: USB 3.2 Gen 2, USB 3.2 Gen 1, USB 2.0, аудиоразъёмы Системное охлаждение: разъёмы для корпусных вентиляторов и помпы СЖО
EAN - 4711636051125
Expansion slots - PCI Express x16 (Gen 4.x) slots - 1
Features - Audio output channels - 7.1 channels
Features - Component for - PC
Features - Motherboard chipset - AMD B850
Features - Motherboard chipset family - AMD
Features - Motherboard form factor - micro ATX
Features - Product colour - Multicolour
Features - Windows operating systems supported - Windows 10 x64, Windows 11
Graphics - Parallel processing technology support - Not supported
gross_weight - 1.2 kg
GTIN - 4711636051125
Internal I/O - 12V power connector - Yes
Internal I/O - ATX Power connector (24-pin) - Yes
Internal I/O - Chassis intrusion connector - Yes
Internal I/O - CPU fan connector - Yes
Internal I/O - EPS power connector (8-pin) - Yes
Internal I/O - Front panel audio connector - Yes
Internal I/O - Number of chassis fan connectors - 3
Internal I/O - Number of COM connectors - 1
Internal I/O - Number of CPU fan connectors - 1
Internal I/O - Number of SATA III connectors - 4
Internal I/O - S/PDIF out connector - Yes
Internal I/O - TPM connector - Yes
Internal I/O - USB 2.0 connectors - 2
Internal I/O - USB 3.2 Gen 1 (3.1 Gen 1) connectors - 2
LargeDescHTML -
LongDesc - Prime 850M-A WIFIASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B850M-A WIFI 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.
LongProductName - AMD B850, AM5, 4 x DIMM slots, max. 256GB, DDR5, Realtek 2.5Gb Ethernet, 2x2 Wi-Fi 6E (802.11ax), Bluetooth 5.3, 256 Mb Flash ROM, UEFI AMI BIOS, mATX
LongSummaryDescription - ASUS PRIME B850M-A WIFI. Processor manufacturer: AMD, Processor socket: Socket AM5, Compatible processor series: AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series. Supported memory types: DDR5-SDRAM, Maximum internal memory: 256 GB, Memory slots type: DIMM. Supported storage drive interfaces: M.2, SATA III, Supported storage drive types: HDD & SSD, RAID levels: 0, 1, 5, 10. Ethernet interface type: 2.5 Gigabit Ethernet, Fast Ethernet, Gigabit Ethernet, Top Wi-Fi standard: Wi-Fi 6E (802.11ax). Component for: PC, Motherboard form factor: micro ATX, Motherboard chipset family: AMD
Manufacturer - ASUS
Memory - ECC сompatibility - ECC & Non-ECC
Memory - Maximum internal memory - 256 GB
Memory - Memory channels - Dual-channel
Memory - Memory slots type - DIMM
Memory - Number of memory slots - 4
Memory - Supported memory clock speed (max) - 8000 MHz
Memory - Supported memory types - DDR5-SDRAM
Memory - Unbuffered memory - Yes
Model - Asus
MPN - 90MB1LN0-M0EAY0
Name - MB ASUS PRIME B850M-A WIFI
Name - Pamatplate ASUS PRIME B850M-A WIFI
Network - Bluetooth - Yes
Network - Bluetooth version - 5.3
Network - Ethernet interface type - 2.5 Gigabit Ethernet, Fast Ethernet, Gigabit Ethernet
Network - Ethernet LAN - Yes
Network - Top Wi-Fi standard - Wi-Fi 6E (802.11ax)
Network - Wi-Fi - Yes
Other features - Weight - 930 g
Packaging content - Antenna included - Yes
Packaging data - Package depth - 275 mm
Packaging data - Package height - 67.5 mm
Packaging data - Package weight - 1.52 kg
Packaging data - Package width - 275 mm
Processor - Compatible processor series - AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Processor - Processor manufacturer - AMD
Processor - Processor socket - Socket AM5
Producer - ASUS
ProductName - PRIME B850M-A WIFI
Rear panel I/O ports - DisplayPorts quantity - 2
Rear panel I/O ports - Ethernet LAN (RJ-45) ports - 1
Rear panel I/O ports - HDMI ports quantity - 1
Rear panel I/O ports - Line-in - Yes
Rear panel I/O ports - USB 2.0 ports quantity - 4
Rear panel I/O ports - USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity - 2
Rear panel I/O ports - USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity - 2
Rear panel I/O ports - WiFi-AP antenna jack - 2
ShortSummaryDescription - ASUS PRIME B850M-A WIFI, AMD, Socket AM5, AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series, DDR5-SDRAM, 256 GB, DIMM
Storage controllers - Number of HDDs supported - 4
Storage controllers - Number of storage drives supported - 7
Storage controllers - RAID levels - 0, 1, 5, 10
Storage controllers - RAID support - Yes
Storage controllers - Supported storage drive interfaces - M.2, SATA III
Storage controllers - Supported storage drive types - HDD & SSD
Title - ASUS PRIME B850M-A WIFI AMD B850 Socket AM5 micro ATX
title_en - Asus Prime B850M-A Motherboard AMD B850
title_lv - Asus Prime B850M-A Mātes plates AMD B850
title_ru - Asus Prime B850M-A Материнская плата AMD B850
Unit Box Height - 0.6
Unit Box Length - 0.2
Unit Box Width - 0.2
URL - https://www.asus.com/motherboards-components/motherboards/prime/prime-b850m-a-wifi/
Warranty - 36 months
WarrantyInfo -
weight - 0.75 kg
Weight - 1.42
Weight & dimensions - Depth - 244 mm
Weight & dimensions - Height - 50 mm
Weight & dimensions - Width - 244 mm
199.72 €
Asus PRIME B850M-A WIFI
Intel technology provider Platinum 2020
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