ASRock B850M Pro-A
Motherboard | micro ATX | Socket AM5 | AMD B850 Chipset | USB-C Gen2, USB 3.2 Gen 2, USB 3.2 Gen 1 | 2.5 Gigabit LAN | onboard graphics (CPU required) | HD Audio (8-channel)
Main Specification
| Product Description | ASRock B850M Pro-A - motherboard - micro ATX - Socket AM5 - AMD B850 |
|---|---|
| Product Type | Motherboard - micro ATX |
| Chipset Type | AMD B850 |
| Processor Socket | 1 x Socket AM5 |
| Compatible Processors | (supports Ryzen 7000/8000/9000 Series) |
| Max RAM Size | 256 GB |
| RAM Supported | 4 DIMM slots - DDR5, non-ECC, ECC, unbuffered |
| Storage Ports | 4 x SATA-600 (RAID), 2 x Hyper M.2, 1 x Blazing M.2 |
| USB / FireWire Ports | 1 x USB-C 3.2 Gen 2 + 1 x USB 3.2 Gen 2 + 2 x USB 3.2 Gen 1 + 4 x USB 2.0 + (1 x USB-C 3.2 Gen 1 + 4 x USB 3.2 Gen 1 + 4 x USB 2.0 via headers) |
| Audio | HD Audio (8-channel) |
| LAN | 2.5 Gigabit Ethernet |
General
| Product Type | Motherboard - micro ATX |
|---|---|
| Chipset Type | AMD B850 |
| Processor Socket | Socket AM5 |
| Max Processors Qty | 1 |
| Compatible Processors | (supports Ryzen 7000/8000/9000 Series) |
Supported RAM
| Max Size | 256 GB |
|---|---|
| Technology | DDR5 |
| Bus Clock | 8000 MHz (O.C.) |
| Supported RAM Integrity Check | Non-ECC, ECC |
| Registered or Buffered | Unbuffered |
| Features | Dual channel memory architecture, Intel Extreme Memory Profiles (XMP), AMD EXPO technology |
Audio
| Type | HD Audio (8-channel) |
|---|---|
| Audio Codec | Realtek ALC897 |
| Compliant Standards | High Definition Audio |
LAN
| Network Controller | Dragon RTL8125BG |
|---|---|
| Network Interfaces | 2.5 Gigabit Ethernet |
Expansion / Connectivity
| Expansion Slots | 1 x CPU 4 x DIMM 288-pin 1 x PCIe 5.0 x16 1 x PCIe 4.0 x4 1 x M.2 socket (for wireless module) 3 x M.2 socket (2280 M.2 slot) |
|---|---|
| Storage Interfaces | SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 PCIe 4.0 -connectors: 2 x Hyper M.2 - RAID 0 / RAID 1 / RAID 10 PCIe 5.0 -connectors: 1 x Blazing M.2 - RAID 0 / RAID 1 / RAID 10 |
| Interfaces | 2 x aerial 1 x LAN (2.5Gigabit Ethernet) 1 x HDMI 1 x DisplayPort 1 x USB 3.2 Gen 2 1 x USB-C 3.2 Gen 2 2 x USB 3.2 Gen 1 4 x USB 2.0 1 x audio line-in - mini-jack 1 x audio line-out - mini-jack 1 x microphone - mini-jack |
| Internal Interfaces | 1 x USB-C 3.2 Gen 1 - header 4 x USB 3.2 Gen 1 - header 4 x USB 2.0 - header 1 x SPI - header 1 x audio - header |
| Power Connectors | 24-pin main power connector, 8-pin ATX12V connector, 4-pin ATX12V connector |
Features
| BIOS Type | AMI |
|---|---|
| BIOS Features | UEFI BIOS |
| Hardware Features | ASRock EZ Mode, ASRock Instant Flash, ASRock Full HD UEFI, ASRock Auto Driver Installer, 8+2+1 Phase Power Design, Dr.MOS MOSFET, VRM heatsink design, DIY Friendly Design, aluminium heatsink design, ASRock FAN-Tastic Tuning, Nahimic Audio Enhacer, ASRock Polychrome RGB, pre-mounted I/O shield |
Miscellaneous
| Software Included | ASRock Polychrome SYNC, ASRock Dragon 2.5G LAN Software, Drivers & Utilities |
|---|---|
| Compliant Standards | FCC, EuP Ready, ErP Ready |
| Width | 24.4 cm |
| Depth | 24.4 cm |
Product features
Versatile connectivity options
The B850M Pro-A features an extensive array of interfaces, including multiple USB 3.2 and USB-C ports, HDMI, and DisplayPort, providing users with numerous connectivity possibilities for their devices.Robust audio performance
High definition audio is powered by the Realtek ALC897 codec and enhanced with 8-channel output, delivering an immersive audio experience for gaming, media consumption, or professional use.Advanced power design
Featuring an 8+2+1 phase power design, this motherboard utilizes Dr.MOS MOSFET technology to ensure stable power delivery for high-performance component support.Efficient RAM support
With four DIMM slots that support DDR5 SDRAM, the B850M Pro-A enables dual-channel memory architecture, optimizing speeds for enhanced system performance.Key selling points
- Supports Ryzen 7000/8000/9000 series processors
- Equipped with high definition audio and 8-channel output
- Multiple expansion slots for versatile hardware upgrades
- Ample USB connectivity options including USB-C
- Designed with a micro ATX form factor for compact builds
References
MPN: B850M PRO-A
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