ASRock B850 Rock WiFi 7 AMD AM5 ATX Motherboard - DDR5
ASRock
ASRock B850 Rock WiFi 7 AMD AM5 ATX Motherboard - DDR5
The ASRock B850 Rock WiFi 7 AMD AM5 ATX Motherboard is built for home users, students, and gamers who want a well-rounded AM5 platform without overcomplicating the build. It pairs an AMD B850 chipset with Wi-Fi 7, 2.5G LAN, and DDR5 support up to 8000+ MHz OC on an 8-layer PCB, covering everyday productivity, study, and gaming from a single board.
Why this product
Wi-Fi 7 and 2.5G LAN built in
802.11be Wi-Fi 7 with Bluetooth 5.4 and a Realtek Dragon 2.5 Gigabit LAN port are included on the board, so no add-in card is needed for fast wired or wireless connectivity.
PCIe 5.0 M.2 slot for next-gen storage
The Blazing M.2 slot runs at PCIe Gen5 x4, making it ready for the fastest NVMe drives available today, while a second PCIe Gen4 x4 M.2 slot and four SATA3 ports cover additional drives.
8-layer PCB for stable memory overclocking
The 8-layer PCB design delivers stable signal traces and improved power delivery, supporting DDR5 EXPO and XMP profiles up to 8000+ MHz OC across four DIMM slots with a maximum of 256 GB.
BIOS Flashback without CPU or RAM
The BIOS Flashback button lets you update firmware using only a USB drive and a power supply—no processor or memory modules need to be installed first.
POST status LEDs for quick diagnostics
Coloured LEDs display the real-time status of CPU, DRAM, VGA, and boot device during startup, giving a fast visual check of which component may need attention.
RAID support across SATA and NVMe
RAID 0, RAID 1, and RAID 10 configurations are supported for both SATA storage and M.2 NVMe devices, allowing flexible redundancy or performance setups.
- SocketAMD AM5
- ChipsetAMD B850
- Memory4× DDR5 DIMM, up to 256 GB, 8000+ MHz OC
- WirelessWi-Fi 7 (802.11be) + Bluetooth 5.4
- LAN2.5 Gigabit (Realtek Dragon RTL8125BG)
- Form FactorATX, 305 mm × 244 mm
- Storage Slots1× PCIe Gen5 M.2, 1× PCIe Gen4 M.2, 4× SATA3
- USB Rear1× USB 3.2 Gen2 Type-A, 1× USB 3.2 Gen2 Type-C, 2× USB 3.2 Gen1, 4× USB 2.0
- SKUASR-1836
- EAN4711581493841
- Compatible with AMD Ryzen 9000, 8000, and 7000 series processors using the AM5 socket.
- Fits standard ATX cases (305 mm × 244 mm).
- Accepts DDR5 memory modules; supports Intel XMP and AMD EXPO profiles.
- EXPO/XMP memory overclocking support may vary by system configuration and memory module; consult the Memory QVL for confirmed compatibility.
- Does not accept DDR4 memory — the board uses DDR5 DIMM slots only.
- Not compatible with AMD AM4 or any Intel socket processors.
Best for
- AM5 platform builds that need Wi-Fi 7 and 2.5G LAN included at the board level, avoiding the cost of separate add-in cards.
- Gamers and home office users who want DDR5 overclocking capability via pre-tested EXPO/XMP profiles without manual tuning.
- Builders adding multiple storage devices, with one PCIe Gen5 M.2, one PCIe Gen4 M.2, and four SATA3 ports available.
- DIY builders who appreciate BIOS Flashback for updating firmware before installing a CPU or RAM, simplifying first-time setup.
- ATX form factor builds that benefit from a pre-installed I/O shield and quick-release M.2 latch for straightforward assembly.
Trade-offs
- Mini-ITX or Micro-ATX cases — at 305 mm × 244 mm this is a full ATX board and will not fit smaller enclosures.
- Users needing a discrete audio solution — onboard audio is the Realtek ALC897 codec; no higher-tier audio hardware is present on this board.
- Builders requiring Thunderbolt or USB4 — no Thunderbolt or USB4 ports are listed in the specifications.
- Existing DDR4 memory owners — DDR4 modules are not supported; new DDR5 memory is required.
- AMD AM4 platform upgraders who want to reuse their existing AM4 processor — the AM5 socket is not backward compatible with AM4 CPUs.
Rock Series brings reliable performance and solid quality in a clean, modern design—ready for work, study, and gaming with practical, well-balanced features.
The 8 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency for memory overclocking! Thus, it's able to support the latest memory modules with most extreme memory performance!
Derived from the "built for stable and reliable" designing concept, ASRock does not compromise on any details. This motherboard is built with high quality materials, enthusiasts are able to enjoy the boost of DDR5 memory overclocking performance by enabling the pre-tested profiles. Make sure the memory modules are Intel® XMP/AMD EXPO™ capable and overclocking can be made so affordable, satisfying and absolutely no sweat at all.
* There are certain risks involved with memory overclocking and may affect your system's stability. Please realize that overclocking should be done at your own risk and expense. EXPO/XMP profile support may vary by different system configuration, memory modules and motherboard models. Please refer to Memory QVL for the completed support list.
The pre-installed IO Shield design makes motherboard to be well-installed in the chassis precisely for preventing any interferences and speed up the set-up process.
Get the most convenient BIOS flashing with just a simple click. Users can easily achieve the latest BIOS support with a USB and a power supply. No CPU, RAM or other components are required.
64MB BIOS provides expanded firmware capacity to support future AM5 processors, offering long-term compatibility and enhanced update capability.
Displays the real-time status of CPU, DRAM, VGA, and BOOT device with colored LEDs during startup. A simple and efficient way to check system operation at a glance.
SSD installation is simplified with a quick release latch, making the installation super easy & simple.
Wi-Fi 7 offers higher data throughput, lower latency, and Multi-link Operation.
General
| Brand | ASRock |
|---|---|
| Form Factor | ATX |
| Dimensions | 305 mm × 244 mm |
| PCB Layers | 8 |
| Chipset | AMD B850 |
| CPU Socket | AMD AM5 — Ryzen 9000, 8000, 7000 Series |
| Power Phases | 9+2+1 with Dr.MOS |
| BIOS | 512 Mb AMI UEFI, BIOS Flashback Button |
Networking
| Standard | Wi-Fi 7 — 802.11be |
|---|---|
| Bluetooth | Bluetooth 5.4 |
| Throughput | 2.5 Gigabit LAN — 10/100/1000/2500 Mb/s |
| LAN Controller | Realtek Dragon RTL8125BG |
Performance
| Memory Slots | 4× DDR5 DIMM, Dual Channel |
|---|---|
| Max Memory | 256 GB |
| Memory Speed | Up to 8000+ MHz (OC) |
| Memory Profiles | Intel XMP / AMD EXPO |
| Expansion Slots | 1× PCIe 5.0 x16, 1× PCIe 4.0 x16, 2× PCIe 4.0 x1 |
| Audio | Realtek ALC897 7.1 CH HD Audio Codec |
| RAID | RAID 0, 1, 10 — SATA and M.2 NVMe |
Ports & Power
| Storage | 1× PCIe Gen5 x4 M.2, 1× PCIe Gen4 x4 M.2, 4× SATA3 |
|---|---|
| Graphics Output | 1× HDMI |
| USB Rear | 1× USB 3.2 Gen2 Type-A (10 Gb/s), 1× USB 3.2 Gen2 Type-C (10 Gb/s), 2× USB 3.2 Gen1, 4× USB 2.0 |
| USB Front Headers | 1× USB 3.2 Gen1 Type-C, 5× USB 3.2 Gen1 Type-A, 8× USB 2.0 |
| Ports | HDMI, 2.5G LAN, Wi-Fi antenna, USB rear array |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.