MSI PRO A520M-S Micro-ATX AM4 DDR4 Motherboard

The MSI PRO A520M-S is a Micro-ATX form-factor motherboard built on AMD's A520 chipset with an AM4 socket, designed to support a wide range of AMD Ryzen processors including the Ryzen 5000 Series, 5000 G-Series, 4000 G-Series, 3000 Series, and 3000 G-Series. Whether you are assembling a compact office workstation or a space-efficient home system, the PRO A520M-S delivers a stable and dependable foundation backed by MSI's professional-grade engineering. Memory support spans up to 64 GB of DDR4 across two DIMM slots in dual-channel configuration. The board accepts non-ECC, unbuffered DDR4 modules and supports overclocking via A-XMP OC mode with speeds up to 4600+ MT/s (OC), while standard JEDEC profiles are also supported out of the box. Double-sided DIMM latches provide a secure memory installation experience. For storage, a PCIe 3.0 M.2 slot (Turbo M.2 with Turbo Gen3 x4 bandwidth) accelerates NVMe SSDs significantly beyond traditional SATA speeds. Expansion is handled by one PCIe 3.0 x16 slot for a discrete GPU and one PCIe 3.0 x1 slot for additional peripherals. Connectivity includes USB 5Gbps (USB 3.2 Gen 1) Type-A ports on the rear, supplemented internally by four USB 2.0 headers and two USB 5Gbps Type-A internal connectors. Display output is provided via a single HDMI 1.4 port for integrated graphics solutions. The rear I/O is protected by a stainless-steel shield that improves corrosion resistance, reduces electromagnetic interference, and outlasts traditional painted shields. MSI's Core Boost technology optimises power delivery to the CPU through a premium PCB layout and refined power phase design, while the proprietary grounding structure suppresses EMI generated by power phases. Overcurrent Protection (OCP) safeguards USB ports, DDR memory, PWM IC, and the CPU from power surges. Transient Voltage Suppressors (TVS) divert abnormal voltage spikes to ground, protecting onboard components. Solid-pin 8-pin CPU power and 24-pin ATX connectors ensure stable 12 V delivery under load. Audio is handled by MSI's Audio Boost circuit, which uses an isolated audio path for cleaner sound output. EZ Debug LED indicators simplify troubleshooting during POST, and EZ Mounting reduces installation friction. The chipset is cooled by a dedicated heatsink designed for efficient heat dissipation and reduced dust accumulation. System management is unified under MSI Center software. Verified Specifications: - Form Factor: Micro-ATX - Socket: AM4 - Chipset: AMD A520 - CPU Support: AMD Ryzen 5000 / 5000G / 4000G / 3000 / 3000G Series - Memory: 2x DDR4 DIMM, Dual-Channel, Max 64 GB, up to 4600+ MT/s (OC) - Storage: 1x M.2 PCIe 3.0 x4 (Turbo M.2) - Expansion: 1x PCIe 3.0 x16, 1x PCIe 3.0 x1 - Display: 1x HDMI 1.4 - Internal USB: 4x USB 2.0, 2x USB 5Gbps Type-A - Power Connectors: 1x 24-pin ATX, 1x 8-pin CPU - Warranty: 3 Years (MSI India)