ASRock B850M Challenger AM5 Micro-ATX DDR5 Motherboard
ASRock
ASRock B850M Challenger AM5 Micro-ATX DDR5 Motherboard
The ASRock B850M Challenger is a Micro-ATX motherboard for AMD Ryzen 9000, 8000 and 7000 series processors, built for gamers and PC enthusiasts who want solid performance at a gamer-friendly price. It supports DDR5 memory up to 8000+ MHz with pre-tested overclocking profiles, and includes PCIe 5.0 and PCIe 4.0 expansion for modern graphics cards and NVMe drives.
Why this product
DDR5 overclocking with pre-tested profiles
Four DDR5 DIMM slots support up to 8000+ MHz with Intel XMP and AMD EXPO compatibility. ASRock provides pre-configured profiles to simplify the process.
PCIe 5.0 and 4.0 expansion
One PCIe 5.0 x16 slot and two PCIe 4.0 slots (x16 and x1) cover next-generation graphics and storage devices.
Dual M.2 NVMe sockets
One PCIe Gen5 M.2 slot and one PCIe Gen4 M.2 slot, plus four SATA3 connectors, handle modern and legacy storage.
Compact Micro-ATX form factor
Smaller than standard ATX, it fits tightly built cases without sacrificing core features.
Easy BIOS updates without CPU or RAM
USB BIOS Flashback lets you update firmware with just a USB drive and power supply, no other components needed.
- SocketAMD Socket AM5
- ChipsetAMD B850
- Form FactorMicro-ATX
- Memory Slots4x DDR5 DIMM
- Max Memory Speed8000+ MHz (OC)
- Power Phase8+1+1 with Dr.MOS
- M.2 Sockets2 (1x PCIe Gen5, 1x PCIe Gen4)
- SKUASR-1952
- EAN4711581494145
- Fits AMD Socket AM5 processors: Ryzen 9000, 8000 and 7000 series.
- Accepts DDR5 memory modules with Intel XMP or AMD EXPO profiles.
- Supports PCIe Gen5 and Gen4 NVMe M.2 drives and standard SATA3 storage.
- Outputs video via HDMI 2.1 up to 4K 120Hz, compatible with HDR and HDCP 2.3.
- Fits Micro-ATX cases only; not compatible with Mini-ITX or standard ATX chassis.
Best for
- Ryzen 7000 and 8000 gamers upgrading from older platforms
- DDR5 memory overclocking with pre-tested profiles
- Builders with compact cases who need full PCIe 5.0 support
- Multi-storage setups combining NVMe and SATA drives
Trade-offs
- Intel platform users: This board is AMD AM5 only and does not support Intel processors.
- Large chassis builds: Micro-ATX will leave empty space in standard ATX or larger cases.
- Extensive USB expansion: Six rear USB ports (four USB 3.2 Gen1, one USB 2.0 from CPU; two USB 3.2 Gen1 from chipset) may be tight for high-peripheral systems.
Challenger Series is all about fearless play, bold breakthroughs, and relentless evolution. Packed with solid specs at a gamer-friendly price, it's the ultimate option for gamers.
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.
ASRock strives offer only the cutting edge technology with the most user-friendly design. 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.
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.
64MB BIOS provides expanded firmware capacity to support future AM5 processors, offering long-term compatibility and enhanced update capability.
General
| Brand | ASRock |
|---|---|
| Model | B850M Challenger |
| Socket | AMD Socket AM5, supports Ryzen 9000, 8000 and 7000 Series |
| Chipset | AMD B850 |
| Form Factor | Micro-ATX |
Memory & Storage
| Memory Slots | 4x DDR5 DIMM, Dual Channel |
|---|---|
| Max Memory Speed | 8000+ MHz (OC) |
| M.2 Socket 1 (M2_1) | PCIe Gen5x4, type 2280, 128 Gb/s |
| M.2 Socket 2 (M2_2) | PCIe Gen4x4, type 2280, 64 Gb/s |
| M.2 Socket 3 (E Key) | PCIe WiFi/BT, type 2230 |
| SATA Connectors | 4x SATA3 6.0 Gb/s |
| Storage RAID | RAID 0, 1, 10 for SATA and NVMe |
Expansion
| PCIe Slot 1 (PCIE1) | PCIe 5.0 x16 |
|---|---|
| PCIe Slot 2 (PCIE3) | PCIe 4.0 x16 (supports x4 mode) |
| PCIe Slot 3 (PCIE2) | PCIe 4.0 x1 |
Power & Cooling
| Power Delivery | 8+1+1 Power Phase with Dr.MOS |
|---|
Audio & Networking
| Audio Codec | Realtek ALC897 7.1 CH HD |
|---|---|
| Audio Enhancement | Nahimic Audio |
| LAN | 2.5 Gigabit Ethernet (Dragon RTL8125BG) |
Connectivity
| Video Output | HDMI 2.1 TMDS/FRL, up to 4K 120Hz |
|---|---|
| Rear USB (CPU) | 4x USB 3.2 Gen1 Type-A, 1x USB 2.0 |
| Rear USB (Chipset) | 2x USB 3.2 Gen1 Type-A |
| Front USB Headers | 1x USB 3.2 Gen1 Type-C, 2x USB 3.2 Gen1 Type-A, 4x USB 2.0 |
BIOS & Features
| BIOS Capacity | 64MB |
|---|---|
| BIOS Flashback | Supported via USB, no CPU or RAM required |
| Diagnostic LEDs | CPU, DRAM, VGA, BOOT status indicators |
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.