ASUS ROG Strix B850-A Gaming Motherboard
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About This Item
- White ATX motherboard with AMD B850 chipset for AMD Ryzen 7000/8000/9000 series
- Supports DDR5 memory up to 8000 MHz with dual-channel architecture
- Features PCIe 5.0 and 4.0 slots for graphics and NVMe storage
- Integrated Wi-Fi 7 and 2.5 Gb Ethernet for advanced networking
- 4 M.2 slots and 6 total storage drives with RAID 0/1/5/10 support
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ASUS ROG STRIX B850-A | AMD B850 White Gaming Motherboard
The ASUS ROG STRIX B850-A GAMING WIFI AMD B850 Socket AM5 ATX is a high-performance motherboard designed for gamers and creators who demand cutting-edge connectivity, robust power delivery, and a striking aesthetic. Built on the AMD B850 chipset, it supports the latest AMD Ryzen 9000, 8000, and 7000 Series processors on the AM5 platform, making it ideal for AI-driven applications, intensive multitasking, and high-end gaming.
Key Specs
| Metric | Spec. |
|---|---|
| Chipset | AMD B850 |
| Memory Support | DDR5, up to 8000 MHz |
| PCIe Support | PCIe 5.0 x16 (GPU), PCIe 5.0 NVMe |
| Wi-Fi Standard | Wi-Fi 7 (802.11be) |
| LAN Speed | 2.5 Gigabit Ethernet |
| Maximum Storage Drives | 6 (M.2 + SATA III) |
Power Delivery Built for Performance
The ROG Strix B850-A features a 14(80A)+2(80A)+2(80A) power stage design, delivering clean, stable power to your CPU even under heavy loads. This robust VRM setup ensures consistent performance during demanding tasks like gaming, streaming, or content creation, while AMD Precision Boost Overdrive (PBO) can automatically push your processor further when cooling allows.
DDR5 Memory & Storage Flexibility
With four DIMM slots supporting DDR5 memory up to 8000 MHz, this motherboard is ready for the fastest kits available. AMD EXPO support simplifies overclocking, while ASUS Enhanced Memory Profile (AEMP) optimises performance on PMIC-restricted modules. Storage is equally versatile: four M.2 slots (one PCIe 5.0 capable) and two SATA III ports support up to six drives, with RAID 0, 1, 5, and 10 configurations available.
Advanced Connectivity & Networking
Stay connected at the highest speeds with onboard Wi-Fi 7 and Bluetooth 5.4, offering ultra-low latency and multi-gigabit throughput. The 2.5Gb Ethernet port ensures rock-solid wired performance, while USB 20Gbps Type-C, multiple USB 3.2 Gen 2 ports, and HDMI 2.1 cover all your peripheral needs. AI Networking II intelligently optimises traffic for lag-free gaming and smooth 4K streaming.
Striking Design with Intelligent Lighting
The clean white PCB and metallic heatsinks give the ROG Strix B850-A a modern, premium look that fits any build theme. ASUS Aura Sync RGB lighting on the I/O shroud and onboard LEDs can be customised or synchronised with other Aura-compatible gear. Subtle accents and a minimalist finish mean it looks just as good with lights off as it does lit up.
Box Contents
- ASUS ROG STRIX B850-A GAMING WIFI motherboard
- SATA cables (2)
- Wi-Fi antenna pair
- Quick installation guide
- ROG stickers
Check before you buy
- Confirm your AMD Ryzen processor is compatible (AM5 socket, BIOS updated if needed)
- Verify your case supports ATX form factor (305 x 244 mm)
- Ensure your PSU has a 24-pin ATX and 8-pin EPS connector
- Check that your DDR5 memory kit is on the motherboard’s Qualified Vendor List
Frequently Asked Questions
Q: Does this motherboard support PCIe 5.0 GPUs?
A: Yes, it has one PCIe 5.0 x16 slot for the latest graphics cards.
Q: How many M.2 SSDs can I install?
A: Four M.2 slots are available, with one supporting PCIe 5.0 speeds.
Q: Is Wi-Fi 7 included?
A: Yes, it features onboard Wi-Fi 7 (802.11be) with dual antennas.
Q: Can I overclock my CPU and RAM?
A: Yes, both CPU (via PBO) and DDR5 memory (via EXPO/AEMP) can be overclocked.
Q: What audio chipset is used?
A: Realtek ALC4080 provides 7.1-channel HD audio output.
The Consultant’s verdict & warranty
The ASUS ROG STRIX B850-A GAMING WIFI is a future-proof, high-performance motherboard for enthusiasts who want cutting-edge connectivity, powerful DDR5 memory support, and a distinctive white aesthetic. Its combination of PCIe 5.0, Wi-Fi 7, and robust power delivery makes it ideal for gaming, content creation, and AI workloads. Covered by the standard Manufacturer Warranty.
| Internal I/O | |
|---|---|
| Number of M.2 (M) slots | 4 |
| Thunderbolt headers | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) connectors | 1 |
| Front panel connector | Yes |
| Supported storage drive interfaces | M.2, SATA III |
| USB 2.0 connectors | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| Number of SATA III connectors | 2 |
| Number of chassis fan connectors | 4 |
| Front panel audio connector | Yes |
| EPS power connector (8-pin) | Yes |
| CPU fan connector | Yes |
| ATX Power connector (24-pin) | Yes |
| RGB LED pin header | Yes |
| Number of CPU fan connectors | 2 |
| Number of EPS power connectors (8-pin) | 2 |
| Number of water pump connectors | 1 |
| Number of temperature sensor headers | 1 |
| Number of RGB LED pin headers | 3 |
| Technical details | |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B850 |
| Supported processor sockets | Socket AM5 |
| Parallel processing technology support | Not supported |
| On-board graphics card | No |
| HDMI version | 2.1 |
| Motherboard form factor | ATX |
| Component for | PC |
| Audio | |
| Audio output channels | 7.1 channels |
| Performance | |
| Number of HDDs supported | 2 |
| Supported storage drive types | HDD & SSD |
| Windows operating systems supported | Windows 11 |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B850 |
| RAID levels | 0, 1, 5, 10 |
| Supported processor sockets | Socket AM5 |
| Audio output channels | 7.1 channels |
| Motherboard form factor | ATX |
| Component for | PC |
| Processor | |
| Processor manufacturer | AMD |
| Compatible processor series | AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Supported processor sockets | Socket AM5 |
| Processor socket | Socket AM5 |
| Memory | |
| Number of memory slots | 4 |
| Memory slots type | DIMM |
| Supported memory types | DDR5-SDRAM |
| Memory channels | Dual-channel |
| Maximum internal memory | 192 GB |
| Unbuffered memory | Yes |
| Supported memory clock speed (max) | 8000 MHz |
| ECC сompatibility | ECC & Non-ECC |
| Storage controllers | |
| Number of HDDs supported | 2 |
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | M.2, SATA III |
| RAID levels | 0, 1, 5, 10 |
| Number of storage drives supported | 6 |
| RAID support | Yes |
| Graphics | |
| Parallel processing technology support | Not supported |
| On-board graphics card | No |
| Maximum resolution | 7680 x 4320 pixels |
| Rear panel I/O ports | |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |
| DisplayPort version | 1.4 |
| USB 2.0 ports quantity | 2 |
| WiFi-AP antenna jack | 2 |
| S/PDIF out port | Yes |
| Headphone outputs | 1 |
| HDMI version | 2.1 |
| HDMI ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 1 |
| DisplayPorts quantity | 1 |
| Digital audio optical out | 1 |
| USB 3.2 Gen 2x2 Type-C ports quantity | 1 |
| Line-in | Yes |
| Network | |
| Ethernet LAN | Yes |
| Wi-Fi | Yes |
| Wi-Fi standards | Wi-Fi 7 (802.11be) |
| Ethernet interface type | 2.5 Gigabit Ethernet |
| Bluetooth | Yes |
| Bluetooth version | 5.4 |
| Top Wi-Fi standard | Wi-Fi 7 (802.11be) |
| Features | |
| Power source type | ATX |
| Windows operating systems supported | Windows 11 |
| Motherboard chipset family | AMD |
| Motherboard chipset | AMD B850 |
| Supported processor sockets | Socket AM5 |
| Audio output channels | 7.1 channels |
| Motherboard form factor | ATX |
| Component for | PC |
| Audio chip | Realtek ALC4080 |
| Product colour | White |
| Expansion slots | |
| Number of M.2 (M) slots | 4 |
| PCI Express x16 (Gen 4.x) slots | 1 |
| PCI Express x16 (Gen 5.x) slots | 1 |
| 1st M.2 largest key size | 2280 |
| 1st M.2 highest PCI Express generation | 5.0 |
| 2nd M.2 largest key size | 22110 |
| 2nd M.2 highest PCI Express generation | 4.0 |
| 3rd M.2 largest key size | 2280 |
| 3rd M.2 highest PCI Express generation | 4.0 |
| 4th M.2 largest key size | 2280 |
| 4th M.2 highest PCI Express generation | 4.0 |
| BIOS | |
| BIOS type | UEFI AMI |
| BIOS memory size | 256 Mbit |
| Clear CMOS button | Yes |
| Power | |
| Power source type | ATX |
| Video | |
| Maximum resolution | 7680 x 4320 pixels |
| Packaging data | |
| Package width | 353 mm |
| Package depth | 273 mm |
| Package height | 68 mm |
| Package weight | 2.04 kg |
| Software | |
| Windows operating systems supported | Windows 11 |
| Weight & dimensions | |
| Package width | 353 mm |
| Package depth | 273 mm |
| Package height | 68 mm |
| Package weight | 2.04 kg |
| Weight | 2.04 kg |
| Width | 305 mm |
| Depth | 244 mm |
| Packaging content | |
| Quick installation guide | Yes |
| Cables included | SATA |
| Antenna included | Yes |
| Other features | |
| Package width | 353 mm |
| Package depth | 273 mm |
| Package height | 68 mm |
| Package weight | 2.04 kg |
| Weight | 2.04 kg |
| Quick installation guide | Yes |
| Identifiers | |
| Distributor SKUs | MBD-90MB1J50-M0EAY0, 11508505, 126167, ROG STRIX B850-A GAMING WIFI, 542814, STD10218896, M2MMBD-90MB1J50-M0EAY0 |
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