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 |
| Maximum internal memory per slot | 64 GB |
| ECC сompatibility | ECC & Non-ECC |
| Weight & dimensions | |
| Width | 244 mm |
| Depth | 244 mm |
| Networking | |
| Ethernet LAN | ![]() |
| Bluetooth | ![]() |
| Wi-Fi | ![]() |
| Ethernet interface type | 2.5 Gigabit Ethernet |
| Internal I/O | |
| USB 2.0 connectors | 2 |
| S/PDIF out connector | ![]() |
| CPU fan connector | ![]() |
| Number of COM connectors | 1 |
| ATX Power connector (24-pin) | ![]() |
| Chassis intrusion connector | ![]() |
| Number of chassis fan connectors | 3 |
| Front panel audio connector | ![]() |
| TPM connector | ![]() |
| Peripheral (Molex) power connectors (4-pin) | 1 |
| EPS power connector (8-pin) | ![]() |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 2 |
| 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 | ![]() |
| Number of RGB LED pin headers | 3 |
| Number of CPU fan connectors | 1 |
| Number of EPS power connectors (8-pin) | 1 |
| Back panel I/O ports | |
| Line-in | ![]() |
| USB 2.0 ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| Headphone outputs | 1 |
| Microphone in | ![]() |
| VGA (D-Sub) ports quantity | 0 |
| DVI-D ports quantity | 0 |
| HDMI ports quantity | 1 |
| HDMI version | 2.1 |
| DisplayPorts quantity | 2 |
| DisplayPort version | 1.4 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 2 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity | 0 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity | 2 |
| USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity | 0 |
| Storage controllers | |
| RAID levels | 0, 1, 5, 10 |
| Number of HDDs supported | 4 |
| RAID support | ![]() |
| Number of storage drives supported | 7 |
| Supported storage drive types | HDD & SSD |
| Supported storage drive interfaces | PCI Express 4.0, PCI Express 5.0 |
| Packaging data | |
| Package weight | 1.45 kg |
| Package depth | 275 mm |
| Package height | 67.5 mm |
| Package width | 275 mm |
| Packaging content | |
| Cables included | SATA |
| Screws included | ![]() |
| Expansion slots | |
| Number of M.2 (M) slots | 3 |
| PCI Express x16 (Gen 4.x) slots | 2 |
| 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 | 4.0 |
| BIOS | |
| BIOS memory size | 256 Mbit |
| BIOS type | UEFI AMI |
| Clear CMOS button | ![]() |
| Graphics | |
| Maximum resolution | 7680 x 4320 pixels |
| Parallel processing technology support | Not supported |
| Features | |
| Motherboard chipset | AMD B850 |
| Motherboard form factor | micro ATX |
| Product colour | Grey |
| Audio output channels | 7.1 channels |
| Cooling type | Passive |
| Windows operating systems supported | Windows 10 x64, Windows 11 |
| Power source type | ATX |
| Motherboard chipset family | AMD |
| Component for | PC |
| EAN | 4711636054720 |
| Warranty | 1 year |
The ASUS PRIME B850M-A-CSM is a micro-ATX motherboard designed for the AMD AM5 socket, providing a stable platform for AMD Ryzen 7000, 8000, and 9000 series processors. It utilizes the B850 chipset and features four DDR5 DIMM slots that support a dual-channel memory architecture with a maximum capacity of 256 GB. The board is engineered to handle memory clock speeds up to 8000 MHz, offering sufficient bandwidth for processing-intensive tasks. Power delivery is managed through standard 24-pin ATX and 8-pin EPS connectors to ensure consistent performance.
For storage and expansion, this motherboard includes three M.2 slots compatible with high-speed PCI Express 5.0 and 4.0 interfaces. It also provides four SATA III ports for conventional SSDs and HDDs, with support for RAID 0, 1, 5, and 10 configurations. The primary graphics card slot is a PCIe 5.0 x16 interface, supplemented by two PCIe 4.0 x16 slots for additional components. Rear panel connectivity is equipped with a 2.5GbE LAN port, multiple USB 3.2 ports, and integrated video outputs, including one HDMI 2.1 and two DisplayPort 1.4 connectors.
Key Features:- Supports AMD Ryzen 7000, 8000, and 9000 series processors
- Micro-ATX form factor for compact system builds
- Four DDR5 memory slots with up to 256 GB capacity
- Features one PCIe 5.0 x16 primary expansion slot
- Includes three M.2 slots for high-speed NVMe storage
- Provides four SATA III 6Gb/s ports for additional drives
- Equipped with a 2.5GbE LAN port for fast wired networking
- Offers multiple display outputs with one HDMI and two DisplayPort connectors
- Onboard 7.1 channel audio chipset
Estimated delivery: 14.01 - 16.01
Today: 10:00 - 18:00
Estimated delivery: 14.01 - 16.01
Today: 09:00 - 17:00
Estimated delivery: 14.01 - 16.01
Today: 10:00 - 17:00
Estimated delivery: 14.01 - 16.01
Today: 10:00 - 18:00
Estimated delivery: 14.01 - 16.01
Today: 10:00 - 17:00
Estimated delivery time: 14.01 - 16.01
Estimated delivery time: 15.01 - 16.01
Estimated delivery time: 14.01 - 15.01
Estimated delivery time: 15.01 - 16.01
Estimated delivery time: 15.01
Estimated delivery time: 14.01 - 16.01
Estimated delivery time: 14.01 - 16.01
Estimated delivery time: 15.01
- manual pdf (English)


