# Motherboard ASUS PRIME A520M-A II/CSM AMD A520 Socket AM4 micro ATX

**URL:** https://aio.lv/en/product--asus-90mb17h0-m0eayc--10166031
**Data updated:** 2025-12-09 07:34 (EET)
**Category:** Motherboards
**Manufacturer:** Asus
**Manufacturer code:** 90MB17H0-M0EAYC
**EAN:** 4711081135395
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 63.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 52.47 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asus-90mb17h0-m0eayc--10166031

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The ASUS PRIME A520M-A II/CSM motherboard features an AMD A520 chipset and Socket AM4, supporting AMD Ryzen™ 3 and 5 processors. It supports DDR4-SDRAM with a maximum memory capacity of 128 GB across DIMM slots. The board includes M.2 and SATA III interfaces for HDD and SSD storage, with RAID levels 0, 1, and 10. It also offers USB Type-A connectors and Gigabit Ethernet for high-speed connectivity.

## Long description

ASUS Prime A520M-A II is a micro ATX motherboard for AMD Ryzen (AM4) processors, offering M.2 (PCIe 3.0 x4), DisplayPort, HDMI, D-Sub, SATA 6 Gbps and USB 3.2 Gen 1 Type-A ports. The board supports Aura Sync RGB lighting with addressable Gen 2 header, includes comprehensive cooling features and a reinforced PCIe slot (SafeSlot Core). It is part of the ASUS Prime series and participates in the ASUS Corporate Stable Model program, which provides extended lifecycle support and includes ASUS Control Center Express for IT management.
Advantages
The Prime A520M-A II provides stable power delivery with VRM heatsink and thermal pad, multiple hybrid fan headers with smart protection, and software/UEFI tools for system tuning and fan control. Built-in PCIe 3.0 M.2 slot delivers up to 32 Gbps for fast system or application drives. Integrated audio improvements such as audio shielding, separate PCB layers for left and right channels and premium Japanese capacitors enhance sound quality. Durable features include reinforced SafeSlot Core, stainless-steel back I/O and protections against overvoltage and DRAM overcurrent.
Key specifications
Form factor: micro ATX (AM4, AMD A520 chipset)
CPU support: AMD Ryzen (AM4)
Memory: DDR4 (UEFI and EZ XMP support)
M.2: 1× M.2 (2280) PCIe 3.0 x4, up to 32 Gbps
SATA: SATA 6 Gbps ports
USB: USB 3.2 Gen 1 Type-A rear ports
Video outputs: DisplayPort, HDMI, D-Sub
Audio: Audio shielding, separate left/right layers, premium Japanese capacitors
RGB: Aura Sync with addressable Gen 2 RGB header
Expansion: SafeSlot Core reinforced PCIe slot
Cooling: VRM heatsink with thermal pad, multiple hybrid 4-pin PWM/DC fan headers
Management: ASUS Control Center Express compatibility (ASUS Corporate Stable Model)
Protection: Overvoltage protection, DRAM overcurrent/resettable fuses, LANGuard
How to use
Install the motherboard into a compatible micro ATX case, fit an AM4-compatible Ryzen CPU and DDR4 memory, and connect storage devices to the M.2 slot or SATA ports. Attach power connectors from the PSU, install a GPU into the SafeSlot Core PCIe slot if required, and connect monitor to DisplayPort, HDMI or D-Sub. Use the UEFI BIOS for initial setup, enable EZ XMP to optimise DRAM performance, and configure fan curves via Fan Xpert 2+ or the UEFI fan control. Manage RGB lighting through Aura Sync or Armoury Crate and, for business deployments, use ASUS Control Center Express to monitor and update multiple systems.
Recommendations
For reliable operation, use a quality power supply to take advantage of the motherboard's overvoltage protections, install compatible DDR4 modules and an M.2 NVMe drive for best performance. In corporate environments consider registering the board under the ASUS Corporate Stable Model to access lifecycle support and ASUS Control Center Express for centralized management.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | Micro ATX |
| Motherboard chipset | AMD A520 |
| Component for | PC |
| Audio output channels | 7.1 |
| Windows operating systems supported | Windows 10 x64 |
| Motherboard chipset family | AMD |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | AMD |
| Compatible processor series | AMD Ryzen 5, AMD Ryzen 3 |
| Processor socket | Socket AM4 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 4 |
| Maximum internal memory | 128 GB |
| Supported memory types | DDR4-SDRAM |
| Supported memory clock speeds | 3466, 2400, 2133, 2666, 2800, 3000, 3200, 3333, 4800, 3600, 3733, 3866, 4100, 4133, 4400, 4466, 4600 |
| Memory channels | Dual-channel |
| Unbuffered memory | Yes |
| Memory slots type | DIMM |

### Expansion slots

| Feature | Value |
|---|---|
| PCI Express x1 (Gen 3.x) slots | 2 |
| PCI Express x16 (Gen 3.x) slots | 1 |
| Number of M.2 (M) slots | 1 |

### Graphics

| Feature | Value |
|---|---|
| Parallel processing technology support | Not supported |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | Yes |
| Wi-Fi | No |
| Ethernet interface type | Gigabit Ethernet |

### Internal I/O

| Feature | Value |
|---|---|
| USB 2.0 connectors | 2 |
| S/PDIF out connector | Yes |
| CPU fan connector | Yes |
| Number of COM connectors | 1 |
| ATX Power connector (24-pin) | Yes |
| Number of chassis fan connectors | 2 |
| Front panel audio connector | Yes |
| TPM connector | Yes |
| EPS power connector (8-pin) | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| Number of SATA III connectors | 4 |
| 12V power connector | Yes |
| RGB LED pin header | Yes |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| PS/2 ports quantity | 1 |
| USB connector type | USB Type-A |
| USB 2.0 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 1 |
| Microphone in | Yes |
| VGA (D-Sub) ports quantity | 1 |
| HDMI ports quantity | 1 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |

### Storage controllers

| Feature | Value |
|---|---|
| RAID levels | 10, 1 |
| Supported storage drive types | HDD & SSD |
| RAID support | Yes |
| Number of storage drives supported | 5 |
| Supported storage drive interfaces | SATA III, M.2 |

### BIOS

| Feature | Value |
|---|---|
| BIOS memory size | 128 Mbit |
| BIOS type | UEFI AMI |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 244 mm |
| Depth | 244 mm |

### Other features

| Feature | Value |
|---|---|
| Number of HDDs supported | 4 |
| Audio chip | Realtek ALC887 / Realtek ALC897 |

## FAQ

### How much does the Motherboard ASUS PRIME A520M-A II/CSM, 90MB17H0-M0EAYC cost, and is it available for purchase?

The price is 63.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 994 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Asus products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Asus service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: motherboard form factor, motherboard chipset, component for, processor socket, number of memory slots, maximum internal memory, pci express x1 (gen 3.x) slots, pci express x16 (gen 3.x) slots, supported memory types, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Motherboard ASUS PRIME A520M-A II/CSM, 90MB17H0-M0EAYC?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/10166031/65426299_large.webp