Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Processor | |
| Processor manufacturer | AMD |
| Compatible processor series | AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series |
| Processor socket | AM5 |
| Supported processor sockets | Socket AM5 |
| Memory | |
| Maximum internal memory | 256 GB |
| ECC | ![]() |
| Non-ECC | ![]() |
| Supported memory types | DDR5 |
| Memory channels | Dual-channel |
| Unbuffered memory | ![]() |
| Memory slots type | DIMM |
| Number of memory slots | 4 |
| Supported memory clock speed (max) | 8000 MHz |
| ECC сompatibility | ECC & Non-ECC |
| Weight & dimensions | |
| Width | 305 mm |
| Depth | 244 mm |
| Networking | |
| Ethernet LAN | ![]() |
| Bluetooth | ![]() |
| LAN controller | Dragon RTL8125BG |
| Wi-Fi | ![]() |
| Ethernet interface type | 2.5 Gigabit Ethernet |
| Internal I/O | |
| USB 2.0 connectors | 2 |
| CPU fan connector | ![]() |
| ATX Power connector (24-pin) | ![]() |
| Number of EATX power connectors | 2 |
| Number of chassis fan connectors | 4 |
| Front panel audio connector | ![]() |
| TPM connector | ![]() |
| EPS power connector (8-pin) | ![]() |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 1 |
| Number of SATA III connectors | 4 |
| USB 3.2 Gen 2 (3.1 Gen 2) connectors | 0 |
| Front panel connector | ![]() |
| 12V power connector | ![]() |
| RGB LED pin header | ![]() |
| USB 3.2 Gen 2x2 connectors | 1 |
| Number of RGB LED pin headers | 4 |
| Number of CPU fan connectors | 2 |
| Number of water pump connectors | 1 |
| Number of EPS power connectors (8-pin) | 2 |
| Back panel I/O ports | |
| Line-in | ![]() |
| USB connector type | USB Type-A, USB Type-C |
| USB 2.0 ports quantity | 6 |
| Ethernet LAN (RJ-45) ports | 1 |
| Headphone outputs | 3 |
| Microphone in | ![]() |
| VGA (D-Sub) ports quantity | 0 |
| DVI-D ports quantity | 0 |
| WiFi-AP antenna jack | 2 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 4 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity | 1 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 0 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 1 |
| Storage controllers | |
| RAID levels | 0, 1, 10 |
| RAID support | ![]() |
| Number of storage drives supported | 8 |
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | PCI Express 3.0, PCI Express 4.0, PCI Express 5.0, SATA III |
| Packaging content | |
| Cables included | SATA |
| Screws included | ![]() |
| Expansion slots | |
| PCI Express x16 slots | 2 |
| 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 |
| 2nd M.2 largest key size | 2280 |
| 3rd M.2 largest key size | 2280 |
| 4th M.2 largest key size | 2280 |
| 1st M.2 highest PCI Express generation | 5.0 |
| 2nd M.2 highest PCI Express generation | 4.0 |
| 3rd M.2 highest PCI Express generation | 4.0 |
| 4th M.2 highest PCI Express generation | 3.0 |
| BIOS | |
| BIOS memory size | 256 Mbit |
| BIOS type | UEFI AMI |
| Clear CMOS button | ![]() |
| Graphics | |
| Maximum resolution | 3840 x 2160 pixels |
| Parallel processing technology support | Not supported |
| HDCP | ![]() |
| Features | |
| Certification | FCC, CE, ErP/EuP |
| Motherboard chipset | AMD B850 |
| Motherboard form factor | ATX |
| Product colour | Black |
| Audio output channels | 7.1 channels |
| Windows operating systems supported | Windows 10 x64, Windows 11 x64 |
| Motherboard chipset family | AMD |
| Component for | PC |
| Audio chip | Realtek ALC897 |
| EAN | 4711581490185 |
| Warranty | 3 years |
The ASRock B850 Pro-A is an ATX motherboard engineered for the AMD AM5 socket, utilizing the B850 chipset. It provides broad compatibility with AMD Ryzen 7000, 8000, and 9000 series processors. The memory architecture consists of four DDR5 DIMM slots in a dual-channel layout, supporting up to 256 GB of total capacity. With support for memory speeds reaching 8000 MHz, the board is designed to handle memory-intensive tasks and high-frame-rate gaming.
This motherboard incorporates a primary PCIe 5.0 x16 slot, providing maximum bandwidth for current-generation graphics cards. Storage capabilities are robust, with four M.2 slots for high-speed NVMe SSDs and four SATA III ports for additional drives, supporting RAID 0, 1, and 10 arrays. For networking, a 2.5 Gigabit Ethernet port delivers fast and stable wired connectivity. The rear I/O panel offers a versatile selection of ports, including multiple USB 2.0, USB 3.2 Gen 1, and a USB 3.2 Gen 2 Type-C port for connecting various peripherals.
Key Features:- AMD AM5 socket for Ryzen 7000, 8000, and 9000 series CPUs
- Four DDR5 DIMM slots with up to 256 GB capacity
- One PCIe 5.0 x16 slot and one PCIe 4.0 x16 slot
- Four M.2 slots for NVMe SSDs
- Four SATA III 6Gb/s ports with RAID 0, 1, 10 support
- 2.5 Gigabit LAN port for high-speed Ethernet
- Realtek ALC897 audio codec for 7.1 channel sound
- ATX form factor for standard PC case installations
Estimated delivery: 19.11 - 21.11
Today: 10:00 - 18:00
Estimated delivery: 19.11 - 21.11
Today: 09:00 - 17:00
Estimated delivery: 19.11 - 21.11
Today: 10:00 - 17:00
Estimated delivery: 19.11 - 21.11
Today: 10:00 - 18:00
Estimated delivery: 19.11 - 21.11
Today: 10:00 - 17:00
Estimated delivery time: 19.11 - 21.11
Estimated delivery time: 20.11 - 21.11
Estimated delivery time: 19.11 - 20.11
Estimated delivery time: 20.11 - 21.11
Estimated delivery time: 20.11
Estimated delivery time: 20.11
- manual pdf (English)


