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Pro-A series is designed for enhanced stability, durability, and efficiency, it offers reliable performance, user-friendly features and a streamlined aesthetic, making it ideal for daily computing needs.
ASRock B850M Pro-A mATX AM5 Motherboard
CPU
| CPU Socket | Socket AM5 |
| CPU Brand | AMD |
| Installed Processors (Max) | 0 (1) |
| Supported Processor Manufacturer | AMD |
| Supported Processors | Ryzen 9000, 8000 and 7000 Series Processors |
| 64-bit Support | Yes |
| Socket | AM5 |
Rear Panel I/O Ports
| USB Ports | 1 x USB 3.1 1 x USB-C 3.0 2 x USB 3.0 4 x USB 2.0 |
| DisplayPorts | 1 x DisplayPort 1.4 |
| HDMI Port | 1 x HDMI 2.1 |
| RJ-45 Ports | 1 x RJ-45 |
| Audio Line In Ports | 1 x 3.5mm Jack |
| Audio Line Out Ports | 1 x 3.5mm Jack |
| Microphone In Port | 1 x 3.5mm Jack |
Internal I/O Connectors
| SATA Connectors | 4 x SATA |
| USB Connectors | 1 x USB-C 3.0 header (supports 1 port) 2 x USB 3.0 headers (supports 4 x ports) 2 x USB 2.0 headers (supports 4 x ports) |
| Speaker | 1 x Speaker header |
| Front Panel Connectors | 1 x Front Panel 1 x Front Audio |
| Cooling Fan Support | 2 x CPU fan headers 3 x Chassis fan headers |
| TPM Header | 1 x SPI TPM header |
| Power Connector Port | 1 x 24-pin ATX 1 x 8-pin EPS 1 x 4-pin EPS |
| Other Connectors | 1 x M.2 slot, Key M, Type 2280 (PCIe Gen5) 2 x M.2 slots, Key M, Type 2280 (PCIe Gen4) 3 x 3-pin ARGB headers 1 x 4-pin RGB header |
Memory
| Memory Bus Speed | Up to 8000 MT/s |
| Memory Type | DDR5 |
| Maximum RAM | 256 GB |
| Memory Slot | 4 x DIMM |
Motherboard
| Northbridge | AMD B850 |
| RAID Supported | Yes |
| RAID Format | RAID 0, 1, 10 |
| SATA Supported | Yes |
Expansion
| Number of PCI Express Slots | 1 x PCI Express 5.0 x16 slot 1 x PCI Express 4.0 x4 slot |
Graphics Device
| Integrated Graphics Supported | Yes |
Warranty
| Warranty | 3 Years |
Sound
| Integrated Sound | Realtek ALC897 |
Network
| Integrated Network | Dragon RTL8125GB |
| Network Speeds Supported | Up to 2.5 Gbps |
| Wireless LAN | No |
| Bluetooth | No |
System Requirements
| Operating Systems Supported | Microsoft Windows 11 |
System
| Software Included (may be trial or restricted) | Yes |
| Drivers | Yes |
Physical
| Form Factor | mATX Motherboard |
| In The Box | Motherboard 1 x I/O Shield 2 x SATA Data Cables 1 x Screw for M.2 Socket |
| Width | 244 mm |
| Length | 244 mm |
Key Features
| RDIMM Memory Supported | No |
| RDIMM Memory Required | No |
| Wireless Network | No |
| Motherboard Width | 244 mm |
| Motherboard Height | 244 mm |
| Main Colour | Black |
| Memory Channel | Dual |
| On-board Audio Type | 7.1 |
| Number of SATA Ports | 4 port(s) |
| Number of USB Ports | 8 port(s) |
| USB 3.0 Support | Yes |
| Multi GPU Support | No |
| VGA Connection | No |
| DVI Connection | No |
| HDMI Connection | Yes |
| DisplayPort Connection | Yes |
| Motherboard Form Factor | mATX |
| Motherboard (EPS) Power Connectors | 4-Pin + 8-Pin |
| Motherboard Chipset | AMD B850 |
| Thunderbolt | No |
| Motherboard Model | ASRock B850M Pro-A |
| USB 3.1 Support | Yes |
| Internal USB3.0 Header | Yes |
| M.2 Support | Yes |
| On-board RGB Control | ASRock RGB LED |
| RGB Header Type | 3-Pin ARGB |
| Addressable RGB | Yes |
| Internal USB Type-C Header | Yes |
| Power Requirement (auto) | 60 W |
| Max Memory Speed Supported (overclocked) | 8000 MT/s |
| CPU Power Pins (female) | 12 |
| Total M.2 Slots | 3 |
| Maximum NVMe M.2 ports | 3 |
| SATA ports | 4 |
| No. of front USB2.0 ports supported | 4 |
| No. of front USB3.0 ports supported | 4 |
| No. of front USB-C ports supported | 1 |
| Back Connect Support | No |
Item Details
| Manufacturer | ASRock |
| Manufacturer Code | 90-MXBR80-A0UAYZ |
| Alternative Part Numbers | 90-MXBR8-A0UAYZ, B850M PRO-A |
| EAN | 4711581490390 |
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