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Main image of ASUS PRIME B450M-A (90MB0YR0-M0EAY0) AM4 AMD B450 SATA 6Gb/s USB 3.1 HDMI Micro ATX AMD Motherboard

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ASUS PRIME B450M-A (90MB0YR0-M0EAY0) AM4 AMD B450 SATA 6Gb/s USB 3.1 HDMI Micro ATX AMD Motherboard

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AMD B450
AM4 socket for AMD Ryzen 2nd Generation / Ryzen with Radeon Vega Graphics / Ryzen 1st Generation Processors
* Refer to www.asus.com for the AMD CPU support list.
DDR4 3200(O.C.)/ 3000(O.C.)/ 2800(O.C.)/ 2666/ 2400/ 2133
* Refer to www.asus.com for the Memory QVL (Qualified Vendors List).

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Overview

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Model
Brand	ASUS
Model	PRIME B450M-A (90MB0YR0-M0EAY0)

Supported CPU
CPU Socket Type	AM4
CPU Type	AM4 socket for AMD Ryzen 2nd Generation / Ryzen with Radeon Vega Graphics / Ryzen 1st Generation Processors * Refer to www.asus.com for the AMD CPU support list.

Chipsets
Chipset	AMD B450

Memory
Number of Memory Slots	4x288pin (DDR4)
Memory Standard	DDR4 3200(O.C.)/ 3000(O.C.)/ 2800(O.C.)/ 2666/ 2400/ 2133 * Refer to www.asus.com for the Memory QVL (Qualified Vendors List).
Maximum Memory Supported	64GB
Channel Supported	Dual Channel

Expansion Slots
PCI Express 3.0 x16	AMD Ryzen 2nd Generation / Ryzen 1st Generation Processors 1 x PCIe 3.0/2.0 x16 (x16 mode) AMD Ryzen with Radeon Vega Graphics Processor 1 x PCIe 3.0/2.0 x16 (x8 mode)* * Support NVMe PCIe RAID.
PCI Express x1	2 x PCI Express 2.0 x1 slots

Storage Devices
Serial ATA (SATA)	AMD B450 chipset: 4 x SATA 6Gb/s port(s) AMD Ryzen 2nd Generation / Ryzen with Radeon Vega Graphics / Ryzen 1st Generation Processors: 2 x SATA 6Gb/s port(s)
M.2	AMD Ryzen 2nd Generation / Ryzen with Radeon Vega Graphics / Ryzen 1st Generation Processors: 1 x M.2 socket 3 with M Key, Type 2242/2260/2280/22110 (PCIE 3.0 x4 and SATA modes) storage devices support* * The M.2 Socket shares bandwidth with the SATA_5/6 ports, and therefore the SATA_5/6 ports cannot be used when an M.2 device is installed.
SATA RAID	0/1/10

Onboard Video
Onboard Video Chipset	Integrated Graphics in the AMD Ryzen with Radeon Vega Graphics Processors Multi-VGA output support: HDMI, DVI-D, D-Sub ports - Supports HDMI 2.0b with maximum resolution of 4096 x 2160 @ 60 Hz - Supports DVI-D with max. resolution 1920 x 1200 @ 60 Hz

Onboard Audio
Audio Chipset	Realtek ALC887
Audio Channels	8 Channels * Use a chassis with HD audio module in the front panel to support an 8-channel audio output.

Onboard LAN
LAN Chipset	Realtek RTL8111H
Max LAN Speed	1Gbps

Rear Panel Ports
Back I/O Ports	1 x D-Sub / 1 x DVI-D / 1 x HDMI / 1 x LAN (RJ45) / 2 x PS/2 / 2 x USB 3.1 Gen 2 Type-A / 3 x Audio Jacks / 4 x USB 3.1 Gen 1
PS/2	1 x PS/2 keyboard (purple) 1 x PS/2 mouse port (green)
Video Ports	1 x DVI-D port 1 x D-Sub port
HDMI	1 x HDMI
RJ45	1 x RJ45
USB 3.1	2 x USB 3.1 Gen 2 ports 4 x USB 3.1 Gen 1 ports
Audio Ports	3 Ports

Internal I/O Connectors
Onboard USB	1 x USB 3.1 Gen 1 (up to 5Gbps) connector(s) support(s) additional 2 USB 3.1 Gen 1 port(s) (19-pin) 2 x USB 2.0 connector(s) support(s) additional 4 USB 2.0 port(s)
Other Connectors	1 x Aura RGB Strip Header 1 x TPM header 1 x COM port(s) connector(s) 1 x CPU Fan connector(s) (1 x 4-pin) 2 x Chassis Fan connector(s) (2 x 4-pin) 1 x S/PDIF out header(s) 1 x Front panel audio connector(s) (AAFP) 1 x System panel(s) 1 x Clear CMOS jumper(s) 1 x Speaker connector

Physical Spec
Form Factor	Micro ATX
LED Lighting	RGB
Dimensions (W x L)	9.6" x 9.5"
Power Pin	1 x 24-pin EATX Power connector 1 x 8-pin ATX 12V Power connector

Features
Features	Special Features: ASUS 5X Protection III: - ASUS SafeSlot Core: Fortified PCIe Slot prevents damage - ASUS LANGuard: Protects against LAN surges, lightning strikes and static-electricity discharges! - ASUS Overvoltage Protection: World-class circuit-protecting power design - ASUS Stainless-Steel Back I/O: 3X corrosion-resistance for greater durability! - ASUS DIGI+ VRM: 6 Phase digital power design ASUS Exclusive Features: - AI Suite 3 - Ai Charger ASUS Quiet Thermal Solution: - Stylish Fanless Design Heat-sink solution - ASUS Fan Xpert 2+ ASUS EZ DIY: - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 - ASUS UEFI BIOS EZ Mode - Multi-language BIOS ASUS Q-Design: - ASUS Q-Slot - ASUS Q-DIMM BIOS: 128MB Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3, F3 My Favorite, Last Modified log, F12 PrintScreen, ASUS DRAM SPD (Serial Presence Detect) memory information, F6 Qfan Control Operating System: Windows 10 64-bit

Packaging
Package Contents	Accessories: User's manual I/O Shield 2 x SATA 6Gb/s cable(s) 1 x M.2 Screw Package 1 x Supporting DVD

Additional Information
First Listed on Newegg	March 19, 2025

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ASUS PRIME B450M-A (90MB0YR0-M0EAY0) AM4 AMD B450 SATA 6Gb/s USB 3.1 HDMI Micro ATX AMD Motherboard

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Warranty & Returns

Warranty, Returns, And Additional Information

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Item#: 9SIA1K6K7Y6214

Meet Your Seller

ASUS PRIME B450M-A (90MB0YR0-M0EAY0) AM4 AMD B450 SATA 6Gb/s USB 3.1 HDMI Micro ATX AMD Motherboard

Learn more about the ASUS PRIME B450M-A (90MB0YR0-M0EAY0)

Customer Reviews of the ASUS PRIME B450M-A (90MB0YR0-M0EAY0)

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info