Asrock B850M Pro-A

Picture may differ from actual product, there can be accessories and parts not supplied with the actual product.
ID: 1186705 Product code: B850M PRO-A
Can be ordered 57 units Availability: 14 days after order approval
Warranty: 2 years
135.73 €
Ready for dispatch
14.08.2025
starting from 1.99 €
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    5.99 €
Main product parameters All parameters
  • Series: ASRock PRO
  • Plate size: mATX
  • Chipset: AMD B850
  • Socket: AM5
  • Type: DDR5
  • RAM Slots: 4
  • Built-in Wi-Fi: Nav
  • M.2 ports: 3
Basic information
Series : ASRock PRO
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 : 1
DVI : 0
HDMI : 1
Integrated sound card : Realtek ALC897
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 : Nav
Built-in Wi-Fi : Nav
External ports
External USB 2.0 : 4
External USB Type-C (USB 3.2 Gen2) : 1
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) : 1
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 Asrock B850M Pro-A
Audio-In Input/Output connectors - 1
Audio-Out Input/Output connectors - 1
BIOS - BIOS type - UEFI AMI
category - PC Components|Mainboards|AMD Mainboards|Socket AM5
Category - Root/Electronics/PC parts/Motherboards
Category Code - MBA
Category_1 - Motherboards
Category_2 - Motherboards - AMD AM5
Chipset - AMD B850
code - 90-MXBR8-A0UAYZ
Code - B850M PRO-A
Dane techniczne: Chipset płyty głównej - AMD B850
Dane techniczne: Grupa produktowa - Płyty główne ASRock
Dane techniczne: Gwarancja - 3 lata w serwisie sprzedawcy
Dane techniczne: Producent - ASRock
Dane techniczne: Przeznaczenie - AMD
Dane techniczne: Standard płyty - micro-ATX
Description - Pro-A series is designed for enhanced stability, durability, and efficiency, it offers reliable performance, user-friendly features and a streamlined aesthetic, making it ideal for daily computing needs. Supports AMD Socket AM5 Ryzen™ 9000, 8000 and 7000 Series Processors 8+2+1 Phase Power Design, Dr.MOS for VCore+SOC+MISC 4 x DDR5 DIMMs Supports Dual Channel, up to 8000+ (OC) 1 PCIe 5.0 x16, 1 PCIe 4.0 x4, 1 M.2 Key E for WiFi Graphics Output Options: 1 HDMI, 1 DisplayPort Realtek ALC897 7.1 CH HD Audio Codec 1 Blazing M.2 (PCIe Gen5x4) 2 Hyper M.2 (PCIe Gen4x4) 4 SATA3 1 USB 3.2 Gen2 Type-C (Rear) 1 USB 3.2 Gen2 Type-A (Rear) 1 USB 3.2 Gen1 Type-C (Front) 6 USB 3.2 Gen1 (2 Rear, 4 Front) 8 USB 2.0 (4 Rear, 4 Front) Realtek 2.5G LAN 802.11axe WiFi 6E +Bluetooth Supports BIOS Flashback
dimensionalWeight - 954
DisplayPort Input/Output connectors - 1
Dźwięk: Zintegrowana karta dźwiękowa - tak (Realtek ALC897 7.1)
EAN - 4711581490390
ean - 4711581490390
Eans - 4711581490390
EAN_code - 4711581490390
Expansion slots - 1st M.2 highest PCI Express generation - 5.0
Expansion slots - 1st M.2 largest key size - 2280
Expansion slots - 2nd M.2 highest PCI Express generation - 4.0
Expansion slots - 2nd M.2 largest key size - 2280
Expansion slots - 3rd M.2 highest PCI Express generation - 4.0
Expansion slots - 3rd M.2 largest key size - 2280
Expansion slots - Number of M.2 (M) slots - 3
Expansion slots - PCI Express x4 (Gen 4.x) slots - 1
Expansion slots - PCI Express x16 (Gen 5.x) slots - 1
Features - Audio chip - Realtek ALC897
Features - Audio output channels - 7.1 channels
Features - Certification - FCC, CE, ErP/EuP
Features - Motherboard chipset - AMD B850
Features - Motherboard chipset family - AMD
Features - Motherboard form factor - micro ATX
Features - Product colour - Black
Features - Windows operating systems supported - Windows 10 x64
Features - Windows operating systems supported - Windows 11 x64
Form Factor - Micro-ATX
Frequency speed - 8000 MHz
Graphics - HDCP - Yes
Graphics - Maximum resolution - 3840 x 2160 pixels
Graphics - Parallel processing technology support - Not supported
HDMI Input/Output connectors - 1
Integrated audio - Realtek ALC897
Integrated LAN - 2.5 Gigabit
Integrated video - Depending on CPU
Internal I/O - 12V power connector - Yes
Internal I/O - ATX Power connector (24-pin) - 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 CPU fan connectors - 2
Internal I/O - Number of EPS power connectors (8-pin) - 1
Internal I/O - Number of RGB LED pin headers - 1
Internal I/O - Number of SATA III connectors - 4
Internal I/O - RGB LED pin header - 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 - 3
Internal I/O > Number of SATA connectors - 4
Internal I/O > Supported hard disk drive interfaces - SATA, M.2
Komunikacja: Zintegrowana karta sieciowa - tak (Dragon 2.5 Gigabit LAN)
Link - https://www.asrock.com/MB/AMD/B850M%20Pro-A/index.asp
M.2 Expansion slots - 1
Manufacturer - Asrock
Manufacturer_code - 90-MXBR80-A0UAYZ
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 types - DDR5-SDRAM
Memory - Unbuffered memory - Yes
Memory > Supported memory types - DDR5
Memory slots - 4
Memory type - DDR5
Microphone Input/Output connectors - 1
Model - B850M Pro-A
Name - ASRock B850M Pro-A
Name - Asrock B850M Pro-A - Socket AM5
name - ASROCK B850M Pro-A Mainboard, Sockel AM5, AMD B850, Micro-ATX, DDR5
Name - ASRock B850M PRO-A | Processor family AMD | Processor socket AM5 | DDR5 | Supported hard disk drive interfaces SATA, M.2 | Number of SATA connectors 4
Network - Ethernet interface type - 2.5 Gigabit Ethernet
Network - Ethernet LAN - Yes
Network - LAN controller - Dragon RTL8125BG
Network - Wi-Fi - No
Package features > Embeeded battery - No
Package features > Gross depth (mm) - 300.00 mm
Package features > Gross height (mm) - 70.00 mm
Package features > Gross width (mm) - 300.00 mm
Package features > Packing quantity - 1.00 pc(s)
Package features > Palette Qty - 137 pc(s)
Package features > Paper/Pasteboard - 800.00 g
Package features > Plastic (No PET) - 200.00 g
Package features > Tare weight (kg) - 1.00 kg
Package features > Volume (m3) - 0.01 m³
Package features > WEEE tax - No
Packaging content - Cables included - SATA
Packaging content - Screws included - Yes
Pamięć: Dwukanałowa obsługa pamięci - tak
Pamięć: Ilość gniazd pamięci - 4 szt.
Pamięć: Maks. pojemność pamięci - 256 GB
Pamięć: Obsługiwana pamięć - DDR5
Pamięć: Rodzaj obsługiwanej pamięci - DIMM (do PC)
Pamięć: Typ obsługiwanej pamięci - DDR5-4800 (PC5-38400)
Pamięć: Typ obsługiwanej pamięci - DDR5-5200 (PC5-41600)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-5600 (PC5-44800)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-5800 (PC5-46400)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-6000 (PC5-48000)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-6200 (PC5-49600)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-6400 (PC5-51200)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-6600 (PC5-52800)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-6800 (PC5-54400)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-7000 (PC5-56000)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-7400 (PC5-59200)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-7600 (PC5-60800)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-7800 (PC5-62400)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-7900 (PC5-63200)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-7950 (PC5-63600)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-8000 (PC5-64000)
Pamięć: Typ obsługiwanej pamięci OC - DDR5-8200 (PC5-65600)
PCI-Express 4.0 4x Expansion slots - 1
PCI-Express 5.0 16x Expansion slots - 1
Procesor: Gniazdo procesora - Socket AM5
Procesor: Maks. ilość obsługiwanych procesorów - 1
Procesor: Obsługiwane typy procesorów - AMD Ryzen 3 - seria 7000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 3 - seria 8000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 3 - seria 9000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 5 - seria 7000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 5 - seria 8000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 5 - seria 9000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 7 - seria 7000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 7 - seria 8000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 7 - seria 9000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 9 - seria 7000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 9 - seria 8000
Procesor: Obsługiwane typy procesorów - AMD Ryzen 9 - seria 9000
Processor - Compatible processor series - AMD Ryzen 7000 Series
Processor - Compatible processor series - AMD Ryzen 8000 Series
Processor - Compatible processor series - AMD Ryzen 9000 Series
Processor - Processor manufacturer - AMD
Processor - Processor socket - Socket AM5
Processor - Supported processor sockets - Socket AM5
Processor > Processor family - AMD
Processor > Processor socket - AM5
Producent: Nazwa producenta / importera - ASRockASRock Europe B.V.Bijsterhuizen 11-116546 AR NijmegenHolandiaEmail: sales@asrock.nl
Producer - ASRock
producerCode - B850M Pro-A
ProducerCode - B850M Pro-A
productName - Asrock B850M Pro-A AMD B850 Socket AM5 micro ATX
Product Net Weight - 1 kg
productSize - Normal
RAID - SATA 0, 1, 10
Rear panel I/O ports - DisplayPorts quantity - 1
Rear panel I/O ports - DisplayPort version - 1.4
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 - HDMI version - 2.1
Rear panel I/O ports - Headphone outputs - 3
Rear panel I/O ports - Line-in - Yes
Rear panel I/O ports - Microphone 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 - 1
Rear panel I/O ports - USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity - 1
Rear panel I/O ports - USB connector type - USB Type-A
Rear panel I/O ports - USB connector type - USB Type-C
RJ45 Input/Output connectors - 1
Safety warning - Warnings - Avoid contact with liquids to prevent electronic damage.
Safety warning - Warnings - Dispose of in accordance with local regulations for electronic waste.
Safety warning - Warnings - Do not disassemble to avoid damage to internal components and loss of warranty.
SATA 3.0 Interface - Yes
SATA Interface - Yes
ShortDescription - Socket AM5 | Chipset AMD B850 | DDR5
sizeX - 300
sizeY - 265
sizeZ - 60
Socket - SAM5
Storage controllers - Number of storage drives supported - 7
Storage controllers - RAID levels - 0
Storage controllers - RAID levels - 1
Storage controllers - RAID levels - 10
Storage controllers - RAID support - Yes
Storage controllers - Supported storage drive interfaces - PCI Express 4.0, PCI Express 5.0, SATA III
Storage controllers - Supported storage drive types - HDD & SSD
Technical details > Gross weight - 2.30 kg
Technical details > Net weight - 1.30 kg
Technical details > Producer - ASRock
Technical details > Producer product name - B850M PRO-A
TPM - Header
Unit Box Height - 0.06
Unit Box Length - 0.3
Unit Box Width - 0.265
Unit Calculated Volume - 0 cubm
Unit Calculated Weight - 1 kg
Units per Shipping Box - 10
USB-C Input/Output connectors - 1
USB-C Interface - Yes
USB 2.0 Input/Output connectors - 4
USB 2.0 Interface - Yes
USB 3.2 Input/Output connectors - 3
USB 3.2 Interface - Yes
Vendor Homepage - www.asrock.com/MB/AMD/B850M%20Pro-A/index.asp
Warranty - 24
Warranty - 24 month(s)
Warranty - 36 months
warrantyLength - 36
warrantyType - G
Weight - 1,22
weight - 1210
Weight & dimensions - Depth - 244 mm
Weight & dimensions - Width - 244 mm
Wymiary: Szerokość - 244 mm
Wymiary: Wysokość - 244 mm
Złącza: Obsługa Raid - tak (0, 1, 5, 10)
Złącza: Wtyczka zasilania - ATX 24pin
Złącza: Złącza dla dysków i napędów - 4 x Serial ATA III
Złącza: Złącza na płycie głównej - 1 x 4-pin ATX 12V
Złącza: Złącza na płycie głównej - 1 x 8-pin ATX 12V
Złącza: Złącza na płycie głównej - 1 x Audio
Złącza: Złącza na płycie głównej - 1 x gniazdo M.2 (PCIe 5.0)
Złącza: Złącza na płycie głównej - 1 x USB 3.2 (Gen1) typ C
Złącza: Złącza na płycie głównej - 2 x gniazdo M.2 (PCIe 4.0)
Złącza: Złącza na płycie głównej - 2 x USB 3.2 (Gen1)
Złącza: Złącza na tylnym panelu - 1 x Display Port
Złącza: Złącza na tylnym panelu - 1 x HDMI
Złącza: Złącza na tylnym panelu - 1 x RJ45
Złącza: Złącza na tylnym panelu - 1 x USB 3.2 (Gen2)
Złącza: Złącza na tylnym panelu - 1 x USB 3.2 (Gen2) typ C
Złącza: Złącza na tylnym panelu - 2 x USB 3.2 (Gen1)
Złącza: Złącza na tylnym panelu - 4 x USB
Złącza: Złącza na tylnym panelu - Audio
Złącza: Złącza na tylnym panelu - gniazdo anteny Wi-Fi
Złącza: Złącza PCI-E (liczba slotów) - 1 x PCI-Express x4
Złącza: Złącza PCI-E (liczba slotów) - 1 x PCI-Express x16
135.73 €
Asrock B850M Pro-A
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