Asus Prime B840 Plus Wifi Motherboard
- Model: Prime B840 Plus Wifi
- Chipset Manufacturer: AMD
- CPU Socket: AM5
- Motherboard Chipset: B840
- Motherboard Type: ATX
- CPU Series: AMD Ryzen 7000 Series & Ryzen 8000 & Ryzen 9000 Series Processors
- Technology: DDR5
- Memory Speed: 1600 MHz to 8800 MHz (various speeds listed)
- Max Memory Size: 256GB
- Memory Slot: 4
- PCI-E X16: YES
- PCI-E GEN: PCIe 4.0
- PCI-E Slots (M.2): 3
- SATAIII: 4x SATA 6.0 Gb/s
- Communication module: Bluetooth, Wireless
- Part Number: 90MB1IZ0-M0EAY0
- Warranty: 3 Years
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Asus Prime B840 Plus Wifi Motherboard
Build a capable and future-ready system with the Asus Prime B840-PLUS WIFI. This ATX motherboard utilizes the latest AMD B840 chipset for the AM5 socket, supporting Ryzen™ 9000, 8000, & 7000 Series processors. Furthermore, it offers high-speed DDR5 memory support, ample storage options including three M.2 slots, and modern connectivity like Wi-Fi 6E and 2.5Gb Ethernet. Consequently, it provides a solid and versatile foundation for mainstream gaming and productivity builds.
Discover Balanced Performance and Connectivity
This Prime series board is engineered to leverage the power of modern AMD Ryzen CPUs. It supports high-speed DDR5 memory up to 7600+ MT/s (OC), enhanced with AMD EXPO™ and ASUS AEMP profiles for easy optimization. Additionally, the primary PCIe 4.0 x16 slot (with SafeSlot Core+) is ready for today’s powerful graphics cards. Storage flexibility is excellent, featuring three M.2 slots (two PCIe 4.0, one PCIe 3.0) and four SATA 6Gb/s ports, allowing for a mix of fast SSDs and larger capacity drives.
Stay connected with comprehensive networking options. The Prime B840-PLUS WIFI includes fast Realtek 2.5Gb Ethernet and onboard Wi-Fi 6E for high-speed wired and wireless connections, plus Bluetooth® 5.3. Moreover, USB connectivity is robust, featuring rear USB 10Gbps ports (Type-A and Type-C®) and internal headers for front panel connections. ASUS 5X Protection III provides hardware safeguards for longevity, while Q-Design features like Q-Antenna and Q-LED Core simplify the build process. Finally, VRM heatsinks and Fan Xpert 2+ ensure stable operation through effective cooling management.
Key Specifications
- Model: PRIME B840-PLUS WIFI
- CPU Socket: AM5 (Ryzen™ 9000/8000/7000 Series)
- Chipset: AMD B840
- Memory: 4x DDR5 DIMM, Max. 256GB, up to 7600MHz+ (OC), EXPO/AEMP
- Expansion Slots: 1x PCIe 4.0 x16, 1x PCIe 3.0 x16 (x4 mode), 2x PCIe 3.0 x16 (x1 mode), 1x PCIe 3.0 x1
- Storage: 2x M.2 PCIe 4.0 x4, 1x M.2 PCIe 3.0 x4, 4x SATA 6Gb/s
- Networking: Realtek 2.5Gb Ethernet, Wi-Fi 6E (802.11ax), Bluetooth 5.3
- Rear USB: 1x USB 10Gbps (Type-C®), 1x USB 10Gbps (Type-A), 2x USB 5Gbps (Type-A), 4x USB 2.0 (Type-A)
- Audio: Realtek 7.1 Surround Sound CODEC
- Form Factor: ATX
- Special Features: 5X Protection III, Q-Design (Q-Antenna, Q-LED Core), VRM Heatsink, Flexible M.2 Heatsink, EZ DIY (BIOS FlashBack™), Aura Sync, Thunderbolt™ (USB4®) Header
Questions & Answers
Who is this Motherboard for?
This motherboard is designed for mainstream PC builders and gamers using the AMD AM5 platform (Ryzen 7000/8000/9000 series). Specifically, it suits users who want a full-size ATX board with a solid mix of modern features like DDR5 support, triple M.2 slots, 2.5Gb LAN, and Wi-Fi 6E, but don’t necessarily need PCIe 5.0 capabilities.
Why Choose This Motherboard?
Choose this board for its well-rounded feature set on the new B840 chipset. It offers broad compatibility with Ryzen processors and high-speed DDR5 memory. Key advantages include ample storage with three M.2 slots, fast networking options (2.5Gb Ethernet and Wi-Fi 6E), and useful ASUS features like 5X Protection III and Q-Design elements. Therefore, it provides a reliable and versatile ATX platform for current-gen AMD builds.
What are the Pros?
Pros: Supports latest Ryzen CPUs; high-speed DDR5 support (7600+ MT/s OC); triple M.2 slots for storage flexibility; integrated Wi-Fi 6E and 2.5Gb Ethernet; USB 10Gbps ports on rear I/O; ATX form factor for good expansion; reliable 5X Protection III features; useful Q-Design and EZ DIY elements.
What are the Cons?
Cons: Lacks PCIe 5.0 support for graphics or M.2 slots; B840 chipset likely has fewer features/lanes than B850/X870; basic Realtek audio codec; limited number of high-speed rear USB ports compared to premium boards.
The Verdict
The Asus Prime B840-PLUS WIFI offers a capable and well-balanced entry into the latest AMD AM5 ecosystem using the new B840 chipset. It delivers essential modern features like high-speed DDR5 support, triple M.2 slots, 2.5Gb LAN, and Wi-Fi 6E in a standard ATX form factor. While it forgoes PCIe 5.0, its focus on providing a solid foundation with good connectivity and ASUS reliability makes it a strong choice for mainstream users building powerful and versatile Ryzen systems. It’s a practical option among the new generation of AM5 motherboards.
Find more details on the official ASUS Prime product page.
Consider pairing it with compatible AMD Ryzen processors or explore our DDR5 memory kits.
| MODEL | |
|---|---|
| CHIPSET MANUFACTURERS | |
| CPU Socket | |
| Motherboard Chipset | |
| Motherboard Type | |
| CPU SERIES | AMD Ryzen 7000 Series & Ryzen 8000 & Ryzen 9000 Series Processors |
| Technology | |
| Memory Speed | 1600 MHz, 2133 MHz, 2400 MHz, 2666 MHz, 2800 MHz, 2933 MHz, 3000 MHz, 3200 MHz, 3300 MHz, 3333 MHz, 3400 MHz, 3466 MHz, 3600 MHz, 3666 MHz, 3733 MHz, 3800 MHz, 3866 MHz, 4000 MHz, 4133 MHz, 4266 MHz, 4300 MHz, 4400 MHz, 4466 MHz, 4500 MHz, 4600 MHz, 4700 MHz, 4800 MHz, 4866 MHz, 4933 MHz, 5000 MHz, 5066 MHz, 5133 MHz, 5200 MHz, 5333 MHz, 5400 MHz, 5600 MHz, 5800 MHz, 6000 MHz, 6200 MHz, 6400 MHz, 6600 MHz, 6666 MHz, 6800 MHz, 7000 MHz, 7200 MHz, 7400 MHz, 7600 MHz, 8800 MHz |
| Max Memory Size | |
| Memory Slot | |
| PCI-E X16 | |
| PCI-E GEN | PCIe 4.0 |
| PCI-E Slots (M.2) | |
| SATAIII | |
| Communication module | |
| Part Number | |
| Warranty |
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Warranty & Purchase Terms
- Warranty for this product: 3 Years (official agent warranty). Details
- Immediate replacement: if a manufacturing defect appears at any time during the warranty, the product is replaced with a new one, no repair (except products that need software work). If no replacement is available, you get a full refund with no deductions. Details
- Returns: don't need it? Return it within 30 days of purchase, as long as it is sealed, unopened and complete. Details
- Inspecting the shipment: before you accept, look at the outer packaging. If the box is badly damaged (torn, wet, crushed or the tape is open) and shows signs of damage, refuse the shipment with the courier and call us right away on 01021625421. Don't open the product box before accepting. Details
- After delivery: if you open it and find damage or missing parts inside, call us within 48 hours on 01021625421 and keep the box and photos or an unboxing video. Details
- Not covered: misuse (burning, breaking, scratching, removing the warranty sticker), operating systems, software and generic accessories. Details
- Important: keep the Alfrensia warranty sticker on the product and all box contents to benefit from the agent's warranty. Details
- Payment & delivery: cash on delivery. Cairo, Giza & Alexandria within 2–3 business days, other governorates within 3–5 business days after order confirmation. Details
- Refunds: your money is back within 2 business days of receiving the product, by InstaPay, wallet or bank transfer. Details
- Your legal rights: all your rights under Egypt's Consumer Protection Law No. 181 of 2018 stay in full; the benefits above come on top. Details
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