ASUS PRIME B450M-K II
Micro‑ATX ASUS Prime B450M‑A supports AMD Ryzen with dual‑channel DDR4 up to 64 GB, a single M.2 NVMe slot, six SATA III ports and Realtek ALC ...
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Price updated on: 08-10-2025 01:56:54
General
Brand
ASUS
Model
ASUS 90MB0YR0-M0EAY0
MPN
ASUS PRIME B450M-A
Characteristics
12v power connector
Yes
24-pin ATX Power
1
64-bit Support
Yes
ACPI version
6.1
Addressable RGB
No
AMD CrossFire Support
Not Supported
ATX Power connector 24-pin
Yes
Audio
Realtek ALC887 7.1 HD Audio
Audio chip
Realtek ALC887
Audio connector
Yes
Audio line in ports
1 x 3.5mm Jack
Audio output channels
7.1 channels
Back Audio Jacks
3
Back USB 3.1 Ports Type-A Gen 1
4
Back USB 3.1 Ports Type-A Gen 2
2
BIOS memory size
128 Mbit
BIOS type
UEFI AMI
Bluetooth
No
Board dimensions
244 x 240 mm
Cables included
SATA
Chipset
AMD B450
Chipset manufacturer
AMD
Clear CMOS jumper
Yes
Colour
Black
Compatible processor series
AMD Ryzen
Component for
PC
Cooling fan support
1 x CPU fan2 x Chassis fans
CPU fan connector
Yes
Depth
240 mm
Displayport connection
No
Drivers
Included
Drivers included
Yes
DVI connection
Yes
ECC
Yes
Ethernet interface type
Gigabit Ethernet
Ethernet LAN
Yes
Expansion slots
1 x M.2, 22-42/60/80/110, PCIe Gen3/SATA 2 x PCIe 2.0 x1 1 x PCIe 3.0 x16
Firewire
No
Form factor
MicroATX Motherboard
Front panel audio connector
Yes
Front panel connector
Yes
Front panel connectors
1 x Front Panel1 x Front Audio
Gross weight
0.90Kg
HDMI connection
Yes
HDMI version
2.0b
Integrated Graphics Supported
Yes
Integrated Network
Realtek RTL8111H
Internal USB 3.0 Header
Yes
LAN Speed
10/100/1000
Length
244 mm
M.2 Support
Yes
Manual
Yes
Maximum Installed Processors
0 (1)
Maximum internal memory
65536 MB
Maximum memory capacity
64GB (4x16GB)
Maximum resolution
4096 x 2160 pixels
Memory Bus Speed
3200(O.C.)/3000(O.C.)/2800(O.C.)/2666/2400/2133 MHz
Memory channel
Dual
Memory slots type
DIMM
Memory speed
DDR4 - 2133 DDR4 - 2400 DDR4 - 2666 DDR4 - 2800(OC) DDR4 - 3000(OC) DDR4 - 3200(OC)
Memory Type ECC
ECC/Non-ECC
Memory Type R/U
UDIMM (Unbuffered)
Motherboard form factor
mATX
Motherboard Power Connectors
4 + 4-Pin
Multi GPU Support
No
Network Chip
1 x Realtek RTL8111H (Gigabit LAN)
Number of PCI Express Slots
1 x PCI Express 3.0 x16 (@ x16 or x8 with G Processors)2 x PCI Express 2.0 x1
Number of SATA III connectors
6
On-Board Audio
Realtek ALC887 8-Channel High Definition Audio CODEC
On-board RGB Control
ASUS Aura Sync
Operating Systems Supported
Windows 10 64-bit
Other Connectors
1 x M.2, Socket 3, M Key (Type 2242/2260/2280/22110)1 x AURA RGB strip header
Plug and play
Sí
Power connector port
1 x 20+4-pin ATX1 x 4+4-pin ATX12V
Primary GPU Interface
PCIe 3.0 (x16)
QPI Speed
N/A
RAID
Raid 0/1/10
Raid supported
Yes
RAM Slots
4 x 288-pin
RJ-45 ports
1 x RJ-45
S/PDIF out connector
Yes
SATA III Support
Yes
SATA Support
SATA3 / M.2
SATA Supported
Yes
Skip audio test
No
Storage Mode Support
NVMe Boot (via M.2 PCIe Slot) NVMe Boot (via PCIe 3.0 Slot) RAID 0 RAID 1 RAID 10
Supported memory clock speeds
2133,2400,2666,2800,3000,3200 MHz
Supported processors
AMD Ryzen 2nd Generation/Ryzen with Radeon Vega Graphics/Ryzen 1st Generation Processors
System management BIOS SMBIOS version
3.1
Thunderbolt
No
TPM connector
Yes
Unbuffered memory
Yes
USB 3.0 Support
Yes
USB 3.1 Support
Yes
USB Connectors
1 x USB 3.02 x USB 2.0
VGA connection
Yes
Water Cooled
No
Windows operating systems supported
Windows 10 Education x64,Windows 10 Enterprise x64,Windows 10 Home x64,Windows 10 Pro x64
Wireless LAN
No
Wireless Network
No
