# Motherboard ASROCK B850M Challenger WiFi DDR5 AM5 Micro-ATX — B850M Challenger WiFi DDR5 AM5

**URL:** https://aio.lv/en/product--asrock-90-mxbu40-a0uayz--12093655
**Data updated:** 2026-03-13 15:55 (EET)
**Category:** Motherboards
**Manufacturer:** ASROCK
**Manufacturer code:** 90-MXBU40-A0UAYZ
**EAN:** 4711581494138
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 134.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 111.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asrock-90-mxbu40-a0uayz--12093655

## 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

ASROCK B850M Challenger WiFi is a Micro-ATX motherboard for AMD AM5 processors supporting DDR5 memory and built-in Wi‑Fi. Designed for compact desktop builds, it provides essential connectivity and expansion for gaming and productivity systems, including multiple PCIe slots, M.2 storage support and rear I/O ports for peripherals and networking.

## Long description

The ASROCK B850M Challenger WiFi DDR5 AM5 Micro-ATX motherboard is a compact platform for AMD AM5 processors that supports DDR5 memory and integrates wireless networking. Built for small-form-factor desktop systems, it combines core connectivity—including PCIe expansion, M.2 storage support and a full set of rear I/O ports—with features required for mainstream gaming and productivity builds. The board’s Micro-ATX layout makes it suitable for space-conscious cases while retaining multiple upgrade paths for graphics, high-speed NVMe drives and peripheral devices.
Advantages
This motherboard supports the latest AM5 CPU socket and DDR5 RAM, enabling higher memory bandwidth and future CPU compatibility. Onboard Wi‑Fi provides convenient wireless networking without an additional adapter, while integrated Gigabit Ethernet ensures stable wired connections. Native M.2 slots and PCIe expansion allow fast NVMe storage and modern graphics cards, and the Micro-ATX form factor balances compact size with sufficient connectivity for most home and office systems.
Suitable for
Compact gaming PCs that require modern CPU and DDR5 memory support
Home and small office productivity systems with wireless networking
Upgrade builds needing M.2 NVMe storage and discrete GPU expansion
Key specifications
Form factor: Micro-ATX
CPU socket: AMD AM5 compatible
Memory: DDR5 support (dual-channel configuration)
Expansion slots: PCIe slots for graphics and add-in cards
Storage interfaces: M.2 slots for NVMe SSDs and SATA ports for HDD/SSD
Networking: integrated Wi‑Fi and Gigabit Ethernet
Rear I/O: multiple USB ports, display outputs and audio jacks
How to use
Install the motherboard into a compatible Micro-ATX case using the provided standoffs, then seat a compatible AM5 processor and install DDR5 memory modules according to the board’s manual. Connect power from a suitable PSU, attach storage devices to the M.2 slots or SATA ports, and install a discrete GPU into the PCIe slot if required. Connect the case front panel, USB and audio headers, then plug in network and peripheral devices to the rear I/O. Use the BIOS/UEFI interface to configure boot order, memory settings and onboard peripherals before installing the operating system.
Usage recommendations
For stable performance, use quality DDR5 modules listed in the motherboard’s memory compatibility guide and update the BIOS to the latest version before installing the operating system. When installing high-performance NVMe drives or large graphics cards, ensure adequate case airflow and a power supply that meets the system’s power requirements.

## FAQ

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

The price is 134.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 49 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 ASROCK B850M Challenger WiFi 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/12093655/68524372_large.webp