# Motherboard ASUS PRO A520M-C II/CSM AMD A520 Socket AM4 micro ATX

**URL:** https://aio.lv/en/product--asus-90mb18f0-m0eayc--8592932
**Data updated:** 2026-01-22 17:55 (EET)
**Category:** Motherboards
**Manufacturer:** Asus
**Manufacturer code:** 90MB18F0-M0EAYC
**EAN:** 4711081250098
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 80.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 66.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asus-90mb18f0-m0eayc--8592932

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

The ASUS PRO A520M-C II/CSM motherboard features an AMD A520 chipset and Socket AM4, supporting AMD Ryzen™ 3, 5, and 7 processors. It supports DDR4-SDRAM with a maximum internal memory of 64 GB across DIMM slots. The board offers M.2 and SATA III interfaces for HDD and SSD storage, with RAID levels 0, 1, and 10. It includes USB Type-A connectors and Gigabit Ethernet for high-speed connectivity, making it a versatile choice for various computing needs.

## Long description

The ASUS PRO A520M-C II/CSM is a Micro ATX business motherboard based on the AMD A520 chipset with Socket AM4. It supports AMD Ryzen 3, 5 and 7 processors and up to 64 GB DDR4 memory across two DIMM slots. The board includes one PCIe x16 slot, two PCIe x1 slots, M.2 and SATA III storage interfaces with RAID 0/1/10 support, USB Type-A connectivity and Gigabit Ethernet. This model is part of the ASUS Corporate Stable Model (CSM) program, which provides extended lifecycle support and bundled IT management software for easier deployment and maintenance.
Advantages
The motherboard offers commercial-grade stability, long-term availability and post-sale support through the ASUS CSM program. Integrated management features include ASUS Control Center Express for IT monitoring and administration, an onboard SMBUS header for remote management via DASH LAN cards, and a 10-1 debug header that works with ASUS Debug Card for faster troubleshooting. Certified to international safety and environmental standards, the board is designed for reliable business use and efficient fleet management.
Suitable for
 Small and medium business desktops and workstations
 Office PCs requiring long-term lifecycle support and remote management
 Systems needing compact Micro ATX form-factor with expandable storage (M.2 + SATA)
Key specifications
 Form factor: Micro ATX
 Chipset: AMD A520
 CPU socket: Socket AM4 (supports AMD Ryzen 3/5/7)
 Memory: 2× DIMM, DDR4, up to 64 GB
 Expansion slots: 1× PCIe x16 (Gen3), 2× PCIe x1 (Gen3)
 Storage interfaces: M.2 and SATA III with RAID 0/1/10 support
 Network: Gigabit Ethernet
 USB: USB Type-A ports (rear I/O)
How to use
Install the motherboard into a Micro ATX-compatible chassis, mount an AM4-compatible CPU and cooler, and populate DDR4 memory modules in the two DIMM slots following the motherboard manual for recommended slot population. Connect storage devices to the M.2 socket or SATA III ports and configure RAID 0/1/10 in the BIOS if required. Attach power supply connectors, front-panel headers and I/O devices. Use ASUS Control Center Express for centralized monitoring and the debug header with an ASUS Debug Card if hardware initialization errors occur.
Usage recommendations
For business deployments, enable ASUS Corporate Stable Model support and keep BIOS and management software updated. Use the onboard SMBUS/DASH support for remote management and the debug header during mass deployment to reduce troubleshooting time.

## 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 |
| Maximum number of SMP processors | 1 |
| Compatible processor series | AMD Ryzen 7, AMD Ryzen 5, AMD Ryzen 3 |
| Processor socket | Socket AM4 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 2 |
| Maximum internal memory | 64 GB |
| Supported memory types | DDR4-SDRAM |
| Supported memory clock speeds | 4000, 4133, 4400, 4600, 3866, 3733, 3600, 3466, 3333, 3200, 3000, 2800, 2666, 2400, 2133 |
| Memory channels | Dual-channel |
| Unbuffered memory | Yes |
| Memory slots type | DIMM |
| ECC сompatibility | ECC |

### Expansion slots

| Feature | Value |
|---|---|
| PCI slots | 1 |
| 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 |
| CPU fan connector | Yes |
| ATX Power connector (24-pin) | Yes |
| Number of chassis fan connectors | 2 |
| Front panel audio 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 |
| Serial port headers | 1 |
| Front panel connector | Yes |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| PS/2 ports quantity | 2 |
| USB connector type | USB Type-A |
| USB 2.0 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 1 |
| Headphone outputs | 1 |
| Microphone in | Yes |
| VGA (D-Sub) ports quantity | 1 |
| DVI-D ports quantity | 1 |
| COM 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 | 1, 10 |
| Supported storage drive types | HDD & SSD |
| RAID support | Yes |
| Number of storage drives supported | 5 |
| Supported storage drive interfaces | M.2, SATA III |

### BIOS

| Feature | Value |
|---|---|
| BIOS memory size | 128 Mbit |
| BIOS type | UEFI AMI |
| Clear CMOS jumper | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 244 mm |
| Depth | 229 mm |

### Other features

| Feature | Value |
|---|---|
| Supported processor sockets | Socket AM4 |
| Package weight | 910 g |
| Number of EATX power connectors | 1 |
| Parallel connector | Yes |
| Audio chip | Realtek ALC897 |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | SATA |
| Drivers included | Yes |

### Packaging data

| Feature | Value |
|---|---|
| Package depth | 263 mm |
| Package height | 51.5 mm |
| Package width | 270 mm |

## FAQ

### How much does the Motherboard ASUS PRO A520M-C II/CSM, 90MB18F0-M0EAYC cost, and is it available for purchase?

The price is 80.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 68 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 13.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Motherboard ASUS PRO A520M-C II/CSM, 90MB18F0-M0EAYC be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 x16 (gen 3.x) slots, pci express x1 (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 PRO A520M-C II/CSM, 90MB18F0-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/8592932/65425300_large.webp