# 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)

- Category: Motherboard
- Brand: ASUS
- Model: B450M-A/CSM
- Part number: PRIME B450M-A/CSM
- Price (US): $109.99
- Price last checked: 2026-08-07
- Rating: 4.6/5 from 4753 Amazon reviews
- Warranty: 3 years
- Product page: https://buildmypc.net/component-details/motherboard/asus-b450m-a-csm-prime-b450m-a-csm/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | ASUS |
| Model | B450M-A/CSM |
| Socket Type | AM4 |
| Chipset | AMD B450 |
| Form Factor | Micro ATX |
| Memory Type | 4 x DDR4 |
| Max Memory Support | 64 GB |

## Key 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
- ASUS CSM motherboard: ASUS Corporate Stable Model with up to 36-month supply, EOL notice, and ECN control
- ASUS Control Center Express to make IT endpoint management simpler
- 5X Protection III: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O
- Please ensure your BIOS is up to date if installing a compatible Ryzen 5000 series CPU. Visit ASUS site search by motherboard model name, click on “Support” tab, Drivers and Tools, then BIOS & Firmware to download the latest BIOS

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