Product Specification

CPU

Chipset : AMD B450

CPU Socket : AM4

Back Panel I/O

USB

4 x USB 3.1 Gen 1 Type-A

2 x USB 3.1 Gen 2 Type-A

Display

1 x VGA

1 x DVI-D

1 x HDMI 2.0b

Audio : 3 x 3.5 mm

Ethernet / Controller : 1 x Realtek 8111H Gigabit

PS/2 : 2 x PS/2

Memory

Memory Slots : 4 x 288-Pin

Memory Support : DDR4 2133, 2400, 2666, 2800, 3000, 3200 MHz

Maximum Capacity : 64 GB

Channel Architecture : Dual Channel

ECC Support : Non-ECC, ECC Unbuffered

Storage Expansion

SATA : 6 x SATA III

M.2 : 1 x M Key 2242, 2260, 2280, 22110 (PCIe 3.0 x4, SATA III)

U.2 : None

Optane Memory Support : No

Internal I/O

Expansion Slots

1 x PCIe 3.0 x16

2 x PCIe 2.0 x1

USB

1 x USB 3.1 / USB 3.2 Gen 1 Header (Supports 2 USB Type-A Port)

2 x USB 2.0 Header (Supports 4 USB Type-A Port)

Multi-GPU Support : None

Air Cooling

1 x 4-Pin CPU

2 x 4-Pin System

Power Connectors

1 x 24-Pin Mainboard

1 x 8-Pin CPU

Security : TPM Module

LED Header : 1 x RGB

Audio

1 x S/PDIF

1 x Speaker

Diagnostics : Clear CMOS

Legacy : 1 x Serial

BIOS

ROM : 128 Mb

Front Panel I/O

I/O Connection Headers : AAFP, USB 3.1

Audio

Audio Codec : Realtek ALC 887-VD2 (8-Channel)

Software

Supported Operating Systems : Windows 10 (64-Bit)

Physical

Form Factor : Micro-ATX

Dimensions : 9.6 x 9.6" / 243.84 x 243.84 mm

Packaging Info

Package Weight : 1.96 lb

Box Dimensions (LxWxH) : 10.65 x 10.5 x 2.15"

Asus Prime B450M-A/CSM AMD AM4 (3rd/2nd/1st Gen Ryzen Micro-ATX commercial motherboard (1Gb LAN, ECC Memory, D-Sub/HDMI/DVI-D, TPM header, COM port, Asus Control Center Express)

(4753 Total Review)

The Asus Prime B450M-A/CSM is a versatile and reliable Micro-ATX commercial motherboard designed for solid performance and creators. The B450 chipset provides excellent support for AMD Ryzen processors with efficient power management and enhanced performance.

The ASUS Prime B450M-A/CSM motherboard features 4 DDR4 DIMM slots, supporting up to 64GB of system memory, which supports dual-channel memory architecture, ensuring smooth multitasking. Also, this motherboard features 1 PCIe 3.0 x16 slot for a graphics card and 2 PCIe 2.0 x1 slots for additional expansion cards like Wi-Fi, sound, or capture cards.

Product Features

AMD AM4 Socket: The perfect pairing for 3rd/2nd/1st Gen AMD Ryzen CPUs.
Fast Connectivity: 1Gb LAN, HDMI 2.0b, D-Sub, and DVI display outputs.
Dual-channel memory architecture.
COM Port Support.
ECC Memory Support.

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Out of Stock · Last Checked At: Oct 30, 2026

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