# Motherboard ASROCK B850M Challenger DDR5 AM5 microATX — DDR5, AM5 socket

**URL:** https://aio.lv/en/product--asrock-90-mxbu30-a0uayz--12093654
**Data updated:** 2026-03-13 15:55 (EET)
**Category:** Motherboards
**Manufacturer:** ASROCK
**Manufacturer code:** 90-MXBU30-A0UAYZ
**EAN:** 4711581494121
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 128.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 106.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asrock-90-mxbu30-a0uayz--12093654

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

ASROCK B850M Challenger DDR5 AM5 is a microATX motherboard for AM5-compatible processors supporting DDR5 memory. Designed for compact desktop systems and gaming builds, it provides essential connectivity and platform features for Ryzen AM5 CPUs. Suitable for users upgrading to DDR5 and AM5 platforms who need a small-form-factor board.

## Long description

The ASROCK B850M Challenger DDR5 AM5 microATX is a compact motherboard built for AM5-compatible processors and DDR5 memory. Intended for small-form-factor desktop systems and gaming builds, this board offers core platform features required for Ryzen AM5 CPUs, including DDR5 support, essential expansion and connectivity options, and a microATX layout that fits smaller cases without sacrificing mainstream capabilities.
Advantages
This motherboard supports DDR5 memory for higher bandwidth and improved responsiveness compared with previous memory generations. The AM5 socket provides compatibility with current Ryzen desktop processors designed for the platform, enabling modern CPU features and power delivery. The microATX form factor balances compact size with multiple expansion options, making it easier to build or upgrade a compact PC. Integrated connectivity options cover common needs for storage and peripheral connections while keeping installation straightforward.
Suitable for
 Compact desktop builds where space is limited
 Mid-range gaming systems using AM5 Ryzen processors
 Upgrading an older platform to DDR5 memory and AM5 socket
 Home office or multimedia PCs requiring a small motherboard
Key specifications
 Form factor: microATX
 CPU socket: AM5 (for compatible Ryzen desktop processors)
 Memory type: DDR5 support
 Memory slots: multiple DDR5 DIMM slots (dual-/quad-channel support depends on CPU and configuration)
 Expansion slots: PCIe slot(s) for discrete graphics and add-in cards
 Storage interfaces: SATA ports and M.2 slot(s) for NVMe/PCIe SSDs
 Onboard connectivity: USB ports, audio jacks, and LAN interface
 Power delivery: VRM designed for mainstream AM5 processors in a compact layout
How to use
Install the AM5-compatible processor into the AM5 socket following the CPU manufacturer’s alignment marks, then populate DDR5 memory modules into the appropriate DIMM slots. Mount the motherboard into a compatible microATX case using standoffs, connect the main 24-pin ATX and CPU power connectors, and attach storage devices to the SATA ports or M.2 slot. Install a discrete graphics card if required into the PCIe slot and connect case front-panel headers, fans, and rear I/O devices. After initial assembly, enter the firmware/BIOS to confirm memory settings, CPU recognition, and boot order before installing an operating system.
Usage recommendations
Use certified DDR5 modules tested for compatibility with AM5 platforms and update the motherboard firmware to the latest available version before heavy use. Ensure adequate case airflow and cooling for higher-performance AM5 CPUs, and consult the motherboard manual for supported memory speeds, CPU power settings, and proper installation procedures.

## FAQ

### How much does the ASROCK B850M Challenger DDR5 AM5 motherboard cost, and is it available for purchase?

The price is 128.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 97 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 15.07.2026 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 ASROCK B850M Challenger DDR5 AM5 motherboard 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 ASROCK 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 ASROCK 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

## Image

https://aio.lv/img/cache/product/12093654/68524371_large.webp