ASUS Prime A520M-A II/CSM AMD A520 Socket AM4 Micro-ATX Motherboard

The ASUS Prime A520M-A II/CSM is a Micro-ATX motherboard designed for compatible AMD AM4 desktop processors. Built around the AMD A520 chipset, it provides a practical foundation for a desktop PC, combining DDR4 memory support, flexible storage connectivity and multiple display outputs in a compact motherboard format.

AMD AM4 Platform

Featuring an AMD AM4 processor socket and AMD A520 chipset, the ASUS Prime A520M-A II/CSM is designed for compatible AMD processor configurations. The supplied specifications list support for AMD Ryzen 3 and Ryzen 5 processor series. Check the motherboard's official CPU support list and BIOS requirements before purchasing to confirm compatibility with your specific processor.

Four DDR4 Memory Slots

With four DIMM memory slots and support for up to 128GB of DDR4-SDRAM, this motherboard offers flexibility when configuring system memory. Dual-channel memory support allows compatible memory modules to operate in a dual-channel configuration for suitable workloads.

Listed memory clock speeds range from 2133MHz to 4800MHz, including 2400MHz, 2666MHz, 2800MHz, 3000MHz, 3200MHz, 3333MHz, 3466MHz, 3600MHz, 3733MHz, 3866MHz, 4100MHz, 4133MHz, 4400MHz, 4466MHz and 4600MHz. The supported speed depends on the processor, memory modules and system configuration.

Flexible M.2 and SATA III Storage

The ASUS Prime A520M-A II/CSM supports M.2 and SATA III storage interfaces for compatible solid-state drives and hard disk drives. With four SATA III connectors, the motherboard provides options for connecting additional storage devices.

RAID 0, RAID 1 and RAID 10 support offers further storage configuration choices for compatible drives. Select the appropriate configuration according to your storage capacity, performance and data protection requirements.

Multiple Display Connections

The rear I/O panel includes HDMI, DisplayPort and VGA (D-Sub) outputs, providing different connection options for compatible displays. Actual display functionality depends on the installed processor and its supported graphics capabilities, so check compatibility before relying on the motherboard's video outputs.

USB and Network Connectivity

The motherboard provides rear USB Type-A connections, including four USB 3.0 (3.1 Gen 1) ports and two USB 2.0 ports, according to the supplied specifications. Internal USB connectors allow compatible case ports and accessories to be connected.

An RJ-45 Ethernet LAN port provides a wired network connection. A PS/2 port is also included for compatible peripherals, while internal chassis fan connectors help connect supported system cooling fans.

Compact Micro-ATX Design

The Micro-ATX form factor makes the ASUS Prime A520M-A II/CSM suitable for compatible desktop cases that support this motherboard size. Its combination of memory expansion, storage interfaces and rear connectivity makes it a practical choice for everyday computing, productivity and general-purpose PC builds.

Product Specifications

• Brand: ASUS
• Model: Prime A520M-A II/CSM
• Chipset: AMD A520
• Processor Socket: AM4
• Compatible Processor Series Listed: AMD Ryzen 3 and Ryzen 5
• Form Factor: Micro-ATX
• Memory Type: DDR4-SDRAM
• Memory Slots: 4 DIMM slots
• Maximum Memory Capacity: 128GB
• Memory Channels: Dual-channel
• Storage Interfaces: M.2 and SATA III
• SATA III Connectors: 4
• RAID Support: RAID 0, RAID 1 and RAID 10
• Rear Display Outputs: HDMI, DisplayPort and VGA
• Rear USB Ports: 4 USB 3.0 (3.1 Gen 1) Type-A and 2 USB 2.0
• Network Connection: RJ-45 Ethernet LAN
• Additional Rear Connection: PS/2

Choose a Suitable Foundation for Your PC

The ASUS Prime A520M-A II/CSM combines an AMD A520 chipset, AM4 socket, four DDR4 memory slots and flexible storage connectivity in a Micro-ATX design. With multiple display outputs and useful rear I/O connections, it offers a versatile starting point for a compatible desktop PC build.

Compatibility note: Before purchasing, verify your processor model, BIOS requirements, RAM compatibility, case form factor and storage-device requirements against the official ASUS documentation.