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)

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)

$99.99 ★★★★½4.5(879 reviews)

*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.

Powered by AMD® 3rd Gen Ryzen™ processors, the ASUS PRIME A520M-A II/CSM commercial motherboard provides enhanced enterprise level features, including comprehensive system protection, 24/7 stability & reliability, an improved management suite with ASUS Control Center Express, ASUS Corporate Stable Model complimentary advance replacement, and a guaranteed long product life cycle for reliable sourcing and support.

SpecPicks Verdict

SpecPicks classifies ASUS Prime A520M-A II/CSM AMD AM4(3rd Gen Ryzen) microATX Commercial… as a solid pick with broad community endorsement in the retro motherboards category, based on 879 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for retro motherboards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ Highly rated — 4.5★ average across customer reviews
  • ✓ Comprehensive cooling: VRM heatsink, PCH heatsink, and Fan Xpert 2+
  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

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

Full Specifications

BrandASUS
USB 2.02
PlatformWindows 10
Aura SyncOnboard RGB headers and addressable Gen 2 headers for RGB LED strips, easily synced with Aura Sync-capable hardware
CPU ModelRyzen 3
CPU SocketSocket AM4
Model NamePRIME A520M-A II/CSM
Chipset TypeAMD A520
ConnectivityUSB
Model NumberPRIME A520M-A II/CSM
AMD AM4 SocketDesign for 3rd Gen AMD Ryzen and 3rd Gen AMD Ryzen with Radeon Graphics Processors
Item Type Namemotherboard
Mfr Part NumberPRIME A520M-A II/CSM
Number of Ports2

Ready to buy?

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) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.

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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)
$99.99
4.5★ (879)
View on Amazon →