Asus PRIME B450M-K II

Picture may differ from actual product, there can be accessories and parts not supplied with the actual product.
ID: 622832 Product code: PRIME B450M-K II
Can be ordered 1 units Availability: 14 days after order approval
Warranty: 3 years
87.98 €
Ready for dispatch
09.03.2026
starting from 6.99 €
Delivery options
  • Posti parcel machine
    Within 1-2 working days
    6.99 €
  • Post Office
    Within 1-2 working days
    6.99 €
  • Delivery with Posti courier mail
    Within 1-2 working days
    10.99 €
Main product parameters All parameters
  • Series: ASUS Prime
  • Plate size: mATX
  • Chipset: AMD B450
  • Socket: AM4
  • Type: DDR4
  • RAM Slots: 2
  • Built-in Wi-Fi: Nav
  • M.2 ports: 1
Basic information
Series : ASUS Prime
Plate size mATX

The physical size of the motherboard. TopPC.fi 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 B450

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 AM4
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 : DDR4
RAM Slots 2
The number of available memory slots indicates the number of memory modules (plates) that can be installed in the motherboard.
Memory support DDR4 2666MHz (4400MHz 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 : 1
DisplayPort : 0
DVI : 1
HDMI : 1
Integrated sound card : Realtek ALC887
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 : 2
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) : 4
External USB 3.1 (USB 3.2 Gen2) : 0
Internal ports
Internal A-RGB 5V (3-pin) : 0
Internal RGB 12V (4-pin) : 0
Internal USB 2.0 : 2
Internal USB 3.0 : 1
Internal USB Type-C : 0
M.2 ports : 1
SATA3 ports : 4
More detailed specification
Additional information in manufacturers website Asus PRIME B450M-K II
ACPI version BIOS - 6.1
ATX Power connector (24-pin) Internal I/O - Yes
Audio chip Features - Realtek ALC887-VD2
Audio connector Internal I/O - Yes
Audio output channels Features - 7.1 channels
BIOS - ACPI version - 6.1
BIOS - BIOS memory size - 128 Mbit
BIOS - BIOS type - UEFI AMI
BIOS memory size BIOS - 128 Mbit
BIOS type BIOS - UEFI AMI
Brand - ASUS
BrandPartCode - 90MB1600-M0EAY0
Bundled software Packaging content - Armoury Crate, AI Suite 3, Performance and Power, Saving Utility, TurboV EVO, EPU, DIGI+ VRM, Fan Xpert, PC Cleaner, EZ update, System Information, ASUS CPU-Z, AI Charger, ASUS EZ Installer, DAEMON Tools, Norton Anti-virus software (Free Trial for 60 days
Cables included Packaging content - SATA
Category - Motherboards
category - PC Components|Mainboards|AMD Mainboards|Socket AM4
Category Code - MBA
code - 90MB1600-M0EAY0
Code - 90MB1600-M0EAY0
Compatible processor series Processor - AMD Ryzen 2000 Series, AMD Ryzen Threadripper 1000 Series, AMD Ryzen Threadripper 2000 Series
Component for Features - PC
CPU fan connector Internal I/O - Yes
Depth Weight & dimensions - 244 mm
Description - ASUS Prime B450M II Series motherboards provide the solid foundation needed for your first build, plus flexibility to grow with your ambitions. We've melded all the good stuff that's packed into AMD Ryzen™ processors with essential ASUS design and engineering, so you benefit from industry-leading technologies — including automated system tuning, comprehensive cooling controls, and immersive onboard audio. When you build with an ASUS Prime B450M II Series motherboard, you build smart, easy and affordably. Tune It Your Way
Comprehensive controls form the foundation of the ASUS Prime series. The Prime B450M II motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work – maximizing your productivity. Cooler by Design
PRIME B450M-K II is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads. Build on a Solid Foundation
Prime B450M II motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options. PCIe 3.0 M.2
(up to 32 Gbps)
Achieve speed with onboard M.2
M.2 Slot supports data-transfer speed up to 32Gbps via x4 PCI Express® 3.0 bandwidth. It‘s the perfect choice for an operating system or application drive, providing fast access to data. Little Things Make a Big Difference
Prime B450M II series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive interface that let you customize your system to create a unique personal look. Outstanding Audio
Combined onboard features deliver elevated audio
Intelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.Comprehensive cooling: PCH heatsink, and Fan XpertUltrafast connectivity: M.2 support, 1 Gb Ethernet, and USB 3.2 Gen 1 Type-A5X Protection III: Multiple hardware safeguards for all-around system protectionLED illumination: Lighting control for both PCIe slot and audio trace paths
DVI-D ports quantity Rear panel I/O ports - 1
EAN - 4718017932387
ean - 4718017932387
ECC сompatibility Memory - ECC
Ethernet interface type Network - Gigabit Ethernet
Ethernet LAN (RJ-45) ports Rear panel I/O ports - 1
Ethernet LAN Network - Yes
Expansion slots - PCI Express x1 (Gen 2.x) slots - 2
Expansion slots - PCI Express x16 (Gen 3.x) slots - 2
Features - Audio chip - Realtek ALC887-VD2
Features - Audio output channels - 7.1 channels
Features - Component for - PC
Features - Motherboard chipset - AMD B450
Features - Motherboard chipset family - AMD
Features - Motherboard form factor - micro ATX
Features - Windows operating systems supported - Windows 10 x64, Windows 7 x64
Front panel audio connector Internal I/O - Yes
Gross weight - 0.856 kg
GTIN - 4718017932387
Harmonized System (HS) code Logistics data - 84733020
Headphone outputs Rear panel I/O ports - 1
Height Weight & dimensions - 259 mm
Internal I/O - ATX Power connector (24-pin) - Yes
Internal I/O - Audio connector - Yes
Internal I/O - CPU fan connector - Yes
Internal I/O - Front panel audio connector - Yes
Internal I/O - Number of chassis fan connectors - 2
Internal I/O - Number of SATA III connectors - 4
Internal I/O - S/PDIF out connector - Yes
Internal I/O - USB 2.0 connectors - 2
Internal I/O - USB 3.2 Gen 1 (3.1 Gen 1) connectors - 1
Logistics data - Harmonized System (HS) code - 84733020
LongDesc - ASUS Prime B450M II Series motherboards provide the solid foundation needed for your first build, plus flexibility to grow with your ambitions. We've melded all the good stuff that's packed into AMD Ryzen™ processors with essential ASUS design and engineering, so you benefit from industry-leading technologies — including automated system tuning, comprehensive cooling controls, and immersive onboard audio. When you build with an ASUS Prime B450M II Series motherboard, you build smart, easy and affordably.Tune It Your WayComprehensive controls form the foundation of the ASUS Prime series. The Prime B450M II motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match the way you work – maximizing your productivity.Cooler by DesignPRIME B450M-K II is engineered with an array of hybrid fan headers and features comprehensive cooling controls that are configurable via Fan Xpert software or via the UEFI BIOS, ensuring your rig stays cool and stable under intense workloads.Build on a Solid FoundationPrime B450M II motherboard provides all the fundamentals to boost daily productivity, so your system will be ready for action with stable power, intuitive cooling and flexible transfer options.PCIe 3.0 M.2(up to 32 Gbps)Achieve speed with onboard M.2M.2 Slot supports data-transfer speed up to 32Gbps via x4 PCI Express® 3.0 bandwidth. It‘s the perfect choice for an operating system or application drive, providing fast access to data.Little Things Make a Big DifferencePrime B450M II series adds the nuanced details that improve every experience, from exclusive codecs that provide pristine audio quality to intuitive interface that let you customize your system to create a unique personal look.Outstanding AudioCombined onboard features deliver elevated audioIntelligent design and premium hardware create audio quality unlike anything you’ve ever experienced.
LongProductName - AMD B450 (Ryzen AM4) micro ATX motherboard with M.2 support, HDMI/DVI-D/D-Sub, SATA 6 Gbps, 1 Gb Ethernet, USB 3.2 Gen 1 Type-A, BIOS FlashBack
LongSummaryDescription - ASUS Prime B450M-K II. Processor manufacturer: AMD, Processor socket: Socket AM4, Compatible processor series: AMD Ryzen 2000 Series, AMD Ryzen Threadripper 1000 Series, AMD Ryzen Threadripper 2000 Series. Supported memory types: DDR4-SDRAM, Maximum internal memory: 64 GB, Memory slots type: DIMM. Supported storage drive interfaces: M.2, PCI Express 3.0, SATA III, RAID levels: 0, 1, 10. Ethernet interface type: Gigabit Ethernet. Component for: PC, Motherboard form factor: micro ATX, Motherboard chipset family: AMD
Maximum internal memory Memory - 64 GB
Memory - ECC сompatibility - ECC
Memory - Maximum internal memory - 64 GB
Memory - Memory slots type - DIMM
Memory - Number of memory slots - 2
Memory - Supported memory clock speeds - 2133,2400,2666,2800,2933,3000,3200 MHz
Memory - Supported memory types - DDR4-SDRAM
Memory - Unbuffered memory - Yes
Memory > Memory slots - 2
Memory > Supported memory types - DDR4
Memory slots type Memory - DIMM
Microphone in Rear panel I/O ports - Yes
Motherboard chipset family Features - AMD
Motherboard chipset Features - AMD B450
Motherboard form factor Features - micro ATX
name - ASUS PRIME B450M-K II, AMD B450 Mainboard - Sockel AM4
Name - Asus | PRIME B450M-K II | Processor family AMD | Processor socket AM4 | DDR4 | Memory slots 2 | Chipset AMD B | Micro ATX
Network - Ethernet interface type - Gigabit Ethernet
Network - Ethernet LAN - Yes
Network - Wi-Fi - No
Number of chassis fan connectors Internal I/O - 2
Number of memory slots Memory - 2
Number of SATA III connectors Internal I/O - 4
Other features - Weight - 840 g
Package features > Embeeded battery - No
Package features > Gross depth (mm) - 270.00 mm
Package features > Gross depth master carton - 560 mm
Package features > Gross height (mm) - 265 mm
Package features > Gross height master carton - 280 mm
Package features > Gross width (mm) - 50 mm
Package features > Gross width master carton - 280 mm
Package features > Net weight master carton - 8.56 kg
Package features > Packing quantity - 10 pc(s)
Package features > Palette Qty - 390 pc(s)
Package features > Paper/Pasteboard - 220 g
Package features > PET - 5 g
Package features > Plastic (No PET) - 34 g
Package features > Tare other - 1 g
Package features > Tare weight (kg) - 0.26 kg
Package features > Tare weight master carton - 0.746 kg
Package features > Volume (m3) - 0.0035775 m³
Package features > WEEE tax - No
Packaging content - Bundled software - Armoury Crate, AI Suite 3, Performance and Power, Saving Utility, TurboV EVO, EPU, DIGI+ VRM, Fan Xpert, PC Cleaner, EZ update, System Information, ASUS CPU-Z, AI Charger, ASUS EZ Installer, DAEMON Tools, Norton Anti-virus software (Free Trial for 60 days), WinRAR, UEFI BIOS, ASUS EZ DIY, ASUS CrashFree BIOS 3, ASUS EZ Flash 3, ASUS UEFI BIOS EZ Mode
Packaging content - Cables included - SATA
PCI Express x1 (Gen 2.x) slots Expansion slots - 2
PCI Express x16 (Gen 3.x) slots Expansion slots - 2
Performance > Chipset - AMD B
Performance > Motherboard form factor - Micro ATX
Processor - Compatible processor series - AMD Ryzen 2000 Series, AMD Ryzen Threadripper 1000 Series, AMD Ryzen Threadripper 2000 Series
Processor - Processor manufacturer - AMD
Processor - Processor socket - Socket AM4
Processor > Compatible processor series - 3rd/2nd/1st Gen AMD Ryzen/2nd and 1st Gen AMD Ryzen with Radeon Vega Graphics/Athlon with Radeon Vega Graphics Processors
Processor > Processor family - AMD
Processor > Processor socket - AM4
Processor manufacturer Processor - AMD
Processor socket Processor - Socket AM4
ProductName - Prime B450M-K II
PS/2 ports quantity Rear panel I/O ports - 2
RAID levels Storage controllers - 0, 1, 10
Rear panel I/O ports - DVI-D ports quantity - 1
Rear panel I/O ports - Ethernet LAN (RJ-45) ports - 1
Rear panel I/O ports - Headphone outputs - 1
Rear panel I/O ports - Microphone in - Yes
Rear panel I/O ports - PS/2 ports quantity - 2
Rear panel I/O ports - USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity - 4
Rear panel I/O ports - USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity - 3
Rear panel I/O ports - VGA (D-Sub) ports quantity - 1
S/PDIF out connector Internal I/O - Yes
ShortSummaryDescription - ASUS Prime B450M-K II, AMD, Socket AM4, AMD Ryzen 2000 Series, AMD Ryzen Threadripper 1000 Series, AMD Ryzen Threadripper 2000 Series, DDR4-SDRAM, 64 GB, DIMM
Storage controllers - RAID levels - 0, 1, 10
Storage controllers - Supported storage drive interfaces - M.2, PCI Express 3.0, SATA III
Summary - ASUS Prime B450M-K II. Processor manufacturer: AMD, Processor socket: Socket AM4, Compatible processor series: AMD Ryzen 2000 Series, AMD Ryzen Threadripper 1000 Series, AMD Ryzen Threadripper 2000 Series. Supported memory types: DDR4-SDRAM, Maximum internal memory: 64 GB, Memory slots type: DIMM. Supported storage drive interfaces: M.2, PCI Express 3.0, SATA III, RAID levels: 0, 1, 10. Ethernet interface type: Gigabit Ethernet. Component for: PC, Motherboard form factor: micro ATX, Motherboard chipset family: AMD
Supported memory clock speeds Memory - 2133,2400,2666,2800,2933,3000,3200 MHz
Supported memory types Memory - DDR4-SDRAM
Supported storage drive interfaces Storage controllers - M.2, PCI Express 3.0, SATA III
Technical details > Net weight - 0.596 kg
Technical details > Producer - Asus
Technical details > Producer product name - PRIME B450M-K II
Title - ASUS Prime B450M-K II AMD B450 Socket AM4 micro ATX
Unbuffered memory Memory - Yes
Unit Box Height - 0.05
Unit Box Length - 0.27
Unit Box Width - 0.265
Unit Calculated Volume - 0.003577 cubm
Unit Calculated Weight - 0.854 kg
Units per Shipping Box - 1
URL - https://www.asus.com/Motherboards-Components/Motherboards/PRIME/PRIME-B450M-K-II
USB 2.0 connectors Internal I/O - 2
USB 3.2 Gen 1 (3.1 Gen 1) connectors Internal I/O - 1
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity Rear panel I/O ports - 4
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity Rear panel I/O ports - 3
Vendor Homepage - https://www.asus.com/Motherboards-Components/Motherboards/PRIME/PRIME-B450M-K-II
VGA (D-Sub) ports quantity Rear panel I/O ports - 1
Warranty - 36
Warranty - 36 month(s)
Warranty - 36 months
WarrantyInfo -
Weight & dimensions - Depth - 244 mm
Weight & dimensions - Height - 259 mm
Weight & dimensions - Width - 244 mm
Weight Other features - 840 g
Wi-Fi Network - No
Width Weight & dimensions - 244 mm
Windows operating systems supported Features - Windows 10 x64, Windows 7 x64
87.98 €
Asus PRIME B450M-K II
Intel technology provider Platinum 2020
All categories