ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX
Brand Asus
From
£114.94
+ £4.95 delivery
3 offers at 3 retailers
Listed since 7 April 2026
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Description
Specifications
| Processor manufacturer | AMD |
| Processor socket | Socket AM5 |
| Compatible processor series | AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Supported processor sockets | Socket AM5 |
| Supported memory types | DDR5-SDRAM |
| Number of memory slots | 2 |
| Memory slots type | DIMM |
| Memory channels | Dual-channel |
| ECC сompatibility | ECC & Non-ECC |
| 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 | 2 |
| Number of SATA III connectors | 4 |
| S/PDIF out connector | Yes |
| Front panel audio connector | Yes |
| Front panel connector | Yes |
| ATX Power connector (24-pin) | Yes |
| CPU fan connector | Yes |
| Number of chassis fan connectors | 3 |
| EPS power connector (8-pin) | Yes |
| Number of COM connectors | 1 |
| TPM connector | Yes |
| 12V power connector | Yes |
| RGB LED pin header | Yes |
| Number of RGB LED pin headers | 3 |
| 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 |
| HDMI ports quantity | 1 |
| Ethernet LAN | Yes |
| Ethernet interface type | 2.5 Gigabit Ethernet |
| Wi-Fi | No |
| Motherboard chipset | AMD B840 |
| Audio output channels | 7.1 channels |
| Product colour | Black |
| Component for | PC |
| Motherboard form factor | micro ATX |
| Motherboard chipset family | AMD |
| Windows operating systems supported | Windows 10 x64, Windows 11 |
| PCI Express x16 (Gen 3.x) slots | 1 |
| PCI Express x16 (Gen 4.x) slots | 1 |
| Number of M.2 (M) slots | 2 |
| BIOS type | UEFI AMI |
| BIOS memory size | 256 Mbit |
| Package width | 270 mm |
| Package depth | 263 mm |
| Package height | 51.5 mm |
| Package weight | 1.02 kg |
| Width | 244 mm |
| Depth | 221 mm |
| Cables included | SATA |
| Screws included | Yes |
Full specifications
| Marque | Asus |
| Référence fabricant | 90mb1pk0m0eay0 |
| EAN | 4711636435048 |
ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX in 2026: still the right choice?
The ASUS PRIME B840M-K 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.
Buy the ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX now or wait?
With the ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX, Asus delivers a quality level consistent with its market positioning. This product suits both newcomers and regular users of the Informatique category. Its quick setup and reliable performance make it a recommended choice for anyone looking to invest in durable equipment without facing technical complications in the first weeks of use.
Value for money analysed in 2026
At £119.89, the ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX offers value for money consistent with its positioning in the Informatique category. Asus maintains a consistent quality level across this range, justifying the investment at this price. Compare with other available offers on our comparison tool to ensure you get the best rate at the time of purchase. The ASUS ROG Loki SFX-L 1000W Platinum power supply unit 24-pin ATX Black, Silver from the same range may also interest you for comparison.
Serious alternatives to consider
If the ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX does not exactly match your expectations, the Informatique category offers other options to explore. Our comparison tool lists all available products with their prices in real time. Filter by budget, brand or availability to find the most suitable alternative for your situation. The ASUS A31 Plus TG ARGB WHITE Midi Tower is another reference from the same brand to consider.
Market price ranges in 2026
| Range | Indicative price |
|---|---|
| Entry-level | Under 3210 £ |
| Mid-range | 3210 £ to 7490 £ |
| High-end | Over 7490 £ |
The ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX is available from several trusted retailers. Always check stock availability and delivery times before finalising your order to avoid any unpleasant surprises. On Compiral, offers showing "In stock" can be delivered quickly, often within 2 to 5 working days depending on the retailer and your delivery address.
Frequently asked questions about ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX
Is delivery free for the ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX at all retailers?
Free delivery is not guaranteed for the ASUS PRIME B840M-K 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-K 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-K 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-K AMD B840 Socket AM5 micro ATX worth its price in 2026?
In 2026, the ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX is listed from £119.89 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.
What warranty does the ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX come with?
The ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX generally comes with a manufacturer warranty of 1 to 2 years depending on the retailer. In addition to the commercial warranty from Asus, statutory consumer rights apply to all purchases. Check the warranty conditions directly on the retailer's page before finalising your order.
Is the ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX in stock?
Stock availability for the ASUS PRIME B840M-K AMD B840 Socket AM5 micro ATX is updated in real time on Compiral. Retailers showing "In stock" can usually deliver quickly, often within 2 to 5 working days. If the product is temporarily out of stock at one retailer, check the other offers in our table. Check back regularly as stock levels change frequently in the Informatique category.
