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 |
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 |
Weight & dimensions | |
Width | 244 mm |
Depth | 244 mm |
Networking | |
Ethernet LAN | ![]() |
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 | ![]() |
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 |
BIOS | |
BIOS memory size | 256 Mbit |
BIOS type | UEFI AMI |
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 | 4711636054706 |
The ASUS PRIME B850M-A-CSM is a reliable and feature-rich micro-ATX motherboard designed to unleash the full potential of AMD Ryzen™ 9000 series processors, and is also designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications. Ideal for both PC DIY builders and corporate environments needing a stable platform, this motherboard offers a blend of performance and manageability. ASUS Corporate Stable Model (CSM) provides ensures long-term availability and support.
Featuring an 8+2+1 phase digital power design, the PRIME B850M-A-CSM ensures stable power delivery for enhanced performance and overclocking capabilities. It supports DDR5 memory with AEMP (ASUS Enhanced Memory Profile) for optimized memory speeds. The inclusion of a Realtek 2.5Gb Ethernet provides faster data transfers, while the pre-mounted I/O shield enhances build simplicity and aesthetics. ASUS Fan Xpert 2+ allows for ultimate cooling control, ensuring your system remains stable under heavy workloads.
Key Features- AM5 Socket for AMD Ryzen™ Desktop processors
- AMD B850 Chipset
- 4 x DIMM slots with DDR5 support and Dual channel AEMP
- 1 x PCIe 5.0 x16 slot (supports x16 mode) with SafeSlot
- 1 x PCIe 4.0 x16 slot (supports x1 mode)
- M.2_1 2280 (PCIe 5.0 x4 mode)
- M.2_2 2280 (PCIe 4.0 x4 mode)
- M.2_3 2242/2260/2280 (PCIe 4.0 x4 mode)
- Realtek 2.5Gb Ethernet for faster data transfers
- USB 5Gbps Type-C® for rapid data transmission
- Aura Sync for full RGB lighting control
- Pre-mounted I/O shield for safeguarding ports and enhancing aesthetics
- ASUS PRIME B850M-A-CSM Motherboard
- I/O Shield
- SATA Cables
- User Manual
- Driver DVD
- M.2 Screws
Estimated delivery: No delivery info
Today: 10:00 - 18:00
Estimated delivery: No delivery info
Today: 09:00 - 17:00
Estimated delivery: No delivery info
Today: 10:00 - 17:00
Estimated delivery: No delivery info
Today: 10:00 - 18:00
Estimated delivery: No delivery info
Today: 10:00 - 17:00
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info
Estimated delivery time: No delivery info