# Motherboard ASUS PRIME B650M-A II-CSM AMD B650 Socket AM5 micro ATX

**URL:** https://aio.lv/en/product--asus-90mb1eh0-m0eayc--10494625
**Data updated:** 2025-12-30 08:44 (EET)
**Category:** Motherboards
**Manufacturer:** Asus
**Manufacturer code:** 90MB1EH0-M0EAYC
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 133.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 110.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asus-90mb1eh0-m0eayc--10494625

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

The ASUS PRIME B650M-A II-CSM motherboard is designed for AMD Ryzen 7000 Series processors with an AM5 socket. It supports DDR5 memory up to 128 GB and features DIMM slots for easy upgrades. The board includes M.2 and SATA III interfaces for HDD and SSD storage options, ensuring fast data transfer. With a micro ATX form factor and 2.5 Gigabit Ethernet, this motherboard is perfect for building a powerful and efficient PC.

## Long description

ASUS PRIME B650M-A II-CSM is a micro ATX motherboard based on the AMD B650 chipset and designed for AMD Ryzen 7000 Series processors with Socket AM5. The board supports DDR5 memory up to 128 GB across four DIMM slots, provides multiple M.2 and SATA III interfaces for SSD and HDD storage, and includes integrated 2.5 Gigabit Ethernet. With a robust power design, onboard cooling features and flexible tuning tools, this motherboard is intended for reliable everyday performance and system customization.
Advantages
The PRIME B650M-A II-CSM offers a solid power delivery system with VRM heatsinks and thermal pads to improve heat transfer, multiple hybrid fan headers for comprehensive cooling control, and support for AMD Precision Boost Overdrive to exploit extra CPU performance. Memory tuning and AMD EXPO support enable overclocking of DDR5 modules, and onboard audio and high-bandwidth interfaces provide a balanced feature set for workstation and gaming builds.
Suitable for
Building a compact desktop PC with AMD Ryzen 7000 Series CPUs
Systems requiring DDR5 memory up to 128 GB for productivity or content creation
Users who need multiple M.2/SATA storage devices and 2.5 Gb Ethernet connectivity
Enthusiasts who plan to tune memory and CPU settings via UEFI or AMD EXPO/PBO
Key specifications
Form factor: Micro ATX
Chipset: AMD B650
Processor socket: Socket AM5 (supports AMD Ryzen 7000 Series)
Memory: 4 × DDR5 DIMM slots, up to 128 GB
PCI Express: multiple PCIe x16 slots (see manufacturer documentation for exact lanes/version)
Storage: M.2 slots and SATA III ports for SSD/HDD
Networking: Integrated 2.5 Gigabit Ethernet
How to use
Install an AM5-compatible AMD Ryzen 7000 Series processor into the Socket AM5, insert DDR5 modules into the DIMM slots following the motherboard manual for recommended channel population, and connect storage devices to the M.2 slots or SATA III ports. Attach cooling fans to the hybrid fan headers and configure fan curves in Fan Xpert 2+ or the UEFI BIOS. Use the UEFI to enable AMD EXPO profiles for DDR5 overclocking and adjust Precision Boost Overdrive (PBO) settings if additional CPU tuning is required.
Usage recommendations
For stable operation under heavy loads, ensure adequate case airflow and use the provided VRM heatsinks. When overclocking memory or CPU parameters, adjust settings incrementally and verify system stability with stress-testing tools. Refer to the official ASUS manual and BIOS updates for the latest guidance and compatibility lists.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | Micro ATX |
| Motherboard chipset | AMD B650 |
| Component for | PC |
| Audio output channels | 7.1 |
| Windows operating systems supported | Windows 11, Windows 10 x64 |
| Motherboard chipset family | AMD |

| Feature | Value |
|---|---|
| Product colour | Black |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | AMD |
| Processor socket | Socket AM5 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 4 |
| Maximum internal memory | 128 GB |
| Supported memory types | DDR5-SDRAM |
| Supported memory clock speeds | 4800, 5000, 5200, 5400, 5600, 5800, 6000, 6200, 6400 |
| Memory channels | Dual-channel |
| Unbuffered memory | Yes |
| Memory slots type | DIMM |
| Supported memory clock speed (max) | 6400 MHz |
| ECC сompatibility | ECC & non-ECC |

### Expansion slots

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

### Graphics

| Feature | Value |
|---|---|
| Parallel processing technology support | Not supported |
| On-board graphics card | No |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | Yes |
| Wi-Fi | No |
| Ethernet interface type | 2.5 Gigabit Ethernet |

### Internal I/O

| Feature | Value |
|---|---|
| USB 2.0 connectors | 2 |
| CPU fan connector | Yes |
| Number of COM connectors | 1 |
| ATX Power connector (24-pin) | Yes |
| Number of chassis fan connectors | 3 |
| Front panel audio connector | Yes |
| TPM connector | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
| Number of SATA III connectors | 4 |
| Clear CMOS button | Yes |
| Audio connector | Yes |
| Front panel connector | Yes |
| 12V power connector | Yes |
| RGB LED pin header | Yes |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| PS/2 ports quantity | 1 |
| Line-in | Yes |
| USB 2.0 ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| Headphone outputs | 1 |
| Microphone in | Yes |
| HDMI ports quantity | 1 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 2 |

### Storage controllers

| Feature | Value |
|---|---|
| Supported storage drive types | HDD & SSD |
| RAID support | Yes |
| Number of storage drives supported | 6 |
| Supported storage drive interfaces | SATA III, M.2 |

### BIOS

| Feature | Value |
|---|---|
| BIOS memory size | 256 Mbit |
| BIOS type | UEFI AMI |

### Weight & dimensions

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

### Other features

| Feature | Value |
|---|---|
| Number of HDDs supported | 4 |
| Supported processor sockets | Socket AM5 |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | SATA |

## FAQ

### How much does the Motherboard ASUS PRIME B650M-A II-CSM, 90MB1EH0-M0EAYC cost, and is it available for purchase?

The price is 133.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 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 14.07.2026 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 PRIME B650M-A II-CSM, 90MB1EH0-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, 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 B650M-A II-CSM, 90MB1EH0-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/10494625/65427159_large.webp