# ASUS Prime A520M-A II/CSM AMD AM4(3rd Gen Ryzen) microATX Commercial Motherboard(ECC Memory,M.2 Support,1Gb Ethernet, DP/HDMI 2.1/D-Sub, 4K@60HZ, USB3.2 Gen1Type-A, ARGBheader with AURAsync)

- Category: Motherboard
- Brand: ASUS
- Model: PRIME A520M-A II/CSM
- Part number: PRIME A520M-A II/CSM
- Price (US): currently unavailable
- Price last checked: 2026-08-06
- Rating: 4.4/5 from 196 Amazon reviews
- Warranty: 3 years
- Product page: https://buildmypc.net/component-details/motherboard/asus-prime-a520m-a-ii-csm/

## Specifications

| Spec | Value |
| --- | --- |
| Brand | ASUS |
| Model | PRIME A520M-A II/CSM |
| Socket Type | AM4 |
| Chipset | AMD A520 |
| Form Factor | Micro ATX |
| Memory Type | 4 x DDR4 |
| Max Memory Support | 128 GB |

## Key Features

- AMD AM4 Socket: Design for 3rd Gen AMD Ryzen and 3rd Gen AMD Ryzen with Radeon Graphics Processors
- Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
- Fast Connectivity: 32Gbps M.2 slot, 1Gb Ethernet, USB 3.2 Gen 1 Type-A ports, plus HDMI 2.1 4K@60HZ, D-Sub, and DP outputs
- ASUS CSM motherboard: ASUS Corporate Stable Model with up to 36-month supply, EOL notice, and ECN control
- ASUS Control Center Express(ACCE) 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
- Aura Sync : Onboard RGB headers and addressable Gen 2 headers for RGB LED strips, easily synced with Aura Sync-capable hardware

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