ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX
Brand Asus
From
£97.99
+ £4.95 delivery
You save £9.81 (9%)
5 offers at 5 retailers
Listed since 22 May 2026
Compare prices
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Description
Specifications
| Processor manufacturer | AMD |
| Processor socket | Socket AM5 |
| Compatible processor series | AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series |
| Supported memory types | DDR5-SDRAM |
| Number of memory slots | 2 |
| Memory slots type | DIMM |
| Memory channels | Dual-channel |
| ECC сompatibility | Non-ECC |
| Supported memory clock speed (max) | 7600 MHz |
| Maximum internal memory | 128 GB |
| Unbuffered memory | Yes |
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | M.2, SATA III |
| Number of HDDs supported | 4 |
| Number of storage drives supported | 6 |
| RAID support | Yes |
| RAID levels | 0, 1, 5, 10 |
| Parallel processing technology support | Not supported |
| USB 2.0 connectors | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| Number of SATA III connectors | 4 |
| S/PDIF out connector | Yes |
| Front panel audio connector | Yes |
| ATX Power connector (24-pin) | Yes |
| CPU fan connector | Yes |
| Number of CPU fan connectors | 1 |
| Number of chassis fan connectors | 2 |
| EPS power connector (8-pin) | Yes |
| Number of COM connectors | 1 |
| TPM connector | Yes |
| 12V power connector | Yes |
| USB 2.0 ports quantity | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| PS/2 ports quantity | 1 |
| HDMI ports quantity | 1 |
| DisplayPorts quantity | 1 |
| Headphone outputs | 1 |
| Line-in | Yes |
| Microphone in | Yes |
| USB connector type | USB Type-A |
| Ethernet LAN | Yes |
| Ethernet interface type | Gigabit Ethernet |
| Wi-Fi | No |
| Motherboard chipset | AMD B840 |
| Audio output channels | 7.1 channels |
| Product colour | Multicolour |
| Component for | PC |
| Motherboard form factor | micro ATX |
| Motherboard chipset family | AMD |
| Windows operating systems supported | Windows 11, Windows 10 x64 |
| PCI Express x1 (Gen 3.x) slots | 1 |
| Number of M.2 (M) slots | 2 |
| 1st M.2 largest key size | 2280 |
| BIOS type | UEFI AMI |
| BIOS memory size | 256 Mbit |
| Package width | 260 mm |
| Package depth | 270 mm |
| Package height | 51.5 mm |
| Package weight | 924 g |
| Width | 236 mm |
| Depth | 229 mm |
| Height | 36.5 mm |
| Weight | 563 g |
Full specifications
| Marque | Asus |
| Référence fabricant | 90mb1pt0m0eay0 |
| EAN | 4711636560702 |
The ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX in its market context in 2026
The ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX is one of the most searched products in the Informatique category in 2026. Offered by Asus, it is aimed at those looking for a reliable product at the best price. Our comparison tool lists all available offers from partner retailers to help you make the right choice without overspending. Comparison is free and requires no registration. In a few seconds, you can access all current offers to find the most competitive price.
Asus: what this model offers
What buyers remember about the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX: consistent quality, intuitive use and a price that stays within market norms for this level of performance. The positioning of Asus on the Informatique segment ensures access to spare parts and a structured after-sales service, which matters greatly in the long run. A solid choice in 2026, whether for a new purchase or to replace a failing device. Also discover the ASUS ExpertBook B3 Flip B3402FV-EC582XA Intel Core 5 120U Hybrid (2-in-1) 35.6 cm (14") Touchscreen Full HD 8 GB DDR4-SDRAM 256 GB SSD Wi-Fi 6E (802.11ax) Windows 11 Pro Education Black from the same brand for a second level of comparison.
The strengths that really make a difference
What truly differentiates the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX from other products in the Informatique category comes down to a few concrete points: the build quality typical of Asus, its availability from many retailers and accessible after-sales support. These criteria, often decisive for buyers, favour this model over alternatives on the market in 2026. Compare with the ASUS ROG Spatha X mouse Gaming Right-hand RF Wireless + USB Type-C Optical 19000 DPI if you wish to explore other models from the brand.
What you need to know before buying
Before buying the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX, check the following points: stock availability at your chosen retailer, the returns policy, warranty period and delivery charges. These details are accessible from our offers table at the top of this page. Asus generally offers a well-structured after-sales network for the Informatique category.
Market price ranges in 2026
| Range | Indicative price |
|---|---|
| Entry-level | Under 391990 £ |
| Mid-range | 391990 £ to 914640 £ |
| High-end | Over 914640 £ |
Comparing prices before buying the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX can save you between £10 and £40 depending on the retailer and the time of year. Use Compiral to never overpay for your online purchases. The 5 offers listed on this page all come from verified retailers with sales conditions compliant with consumer protection law.
Frequently asked questions about ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX
Is there a refurbished version of the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX?
Refurbished versions of the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.
When do prices for the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX drop during the year?
Prices for the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the Informatique category.
Is delivery free for the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX at all retailers?
Free delivery is not guaranteed for the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.
How do I return the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX if I am not satisfied?
You have a 14-day right of withdrawal for any online purchase, applicable to the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX regardless of the retailer. Precise return conditions vary by retailer: check their returns policy before buying. Statutory consumer rights protect you in the event of a defect discovered after delivery.
Is the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX worth its price in 2026?
In 2026, the ASUS PRIME B840M-R AMD B840 Socket AM5 micro ATX is listed from £102.94 at our partner retailers. This price is consistent with the positioning of Asus in the Informatique category. To judge whether this price is currently attractive, check the price history on our product page. Also compare the total price including delivery to avoid any surprises at checkout.
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