The ASUS PRIME B850M-A-CSM is a powerful Micro-ATX motherboard designed for the latest AMD AM5 series processors. It supports modern DDR5 memory with speeds of up to 8000 MHz and accommodates up to four RAM modules. With a variety of connectivity options, including PCI-Express 4.0 and 5.0 slots as well as multiple M.2 slots, this motherboard allows for a flexible and high-performance setup for gaming and productivity applications. The integrated video outputs, including HDMI and DisplayPort, along with a comprehensive selection of USB ports, ensure versatile connections to peripherals. Additionally, the motherboard supports RAID configurations and features a 2.5 Gigabit LAN connection, making it an excellent choice for users who prioritize speed and reliability.
Processor family | Ryzen 7th Gen, Ryzen 8th Gen, Ryzen 9th Gen |
Memory type | DDR5 RAM |
Number of memory modules (RAM) | 4 x |
Internal connection options | M.2 PCIe (3x), S-ATA III (4x) |
Mainboard features | Trusted Platform Module |
Item number | 58960852 |
Manufacturer | ASUS |
Category | Motherboards |
Manufacturer no. | 90MB1LQ0-M0EAYC |
Release date | 27.5.2025 |
Form factor | Micro ATX (mATX) |
Socket | AM5 |
Chipset | AMD B850 |
Mainboard features | Trusted Platform Module |
BIOS type | UEFI |
Processor family | Ryzen 7th Gen, Ryzen 8th Gen, Ryzen 9th Gen |
Memory form factor | DIMM |
Number of memory modules (RAM) | 4 x |
Max. memory (RAM) | 256 GB |
Memory chip | DDR5-8000 |
Max. RAM OC | 8000 MHz |
Supported memory speed | 8000 MHz |
Memory type | DDR5 RAM |
RAM buffer | Unbuffered |
Video connections | DisplayPort (2x), HDMI (1x) |
Video connection version | Display port 1.4, HDMI 2.1 |
Network connections | RJ45 2.5 Gigabit Ethernet (1x) |
Max. port speed | 2.50 Gbit/s |
Audio channel | 3.0 Channel |
Audio Connections | Jack 3.5mm Line In (1x), Jack 3.5mm Line Out (1x), Jack 3.5mm Microphone In (1x) |
RAID configuration | 0, 1, 10 |
Internal connection options | M.2 PCIe (3x), S-ATA III (4x) |
Expansion slot | PCI Express x16 (Gen 4) (1x), PCI Express x16 (Gen 5) (1x) |
PCI express version (max.) | 5 |
USB ports | USB-A |
Exact USB ports | USB-A 2.0 (4x), USB-A 3.2 Gen 1 (2x), USB-A 3.2 Gen 2 (2x) |
Country of origin | China |
Manufacturer commitment | RE100, SBTi |
Manufacturer compensation | According to RE100, the manufacturer ASUS fully compensates for its energy consumption, leading to a reduction in emissions. |
CO₂-Emission | |
Climate contribution |
Scope of delivery | 1 piece |
Length | 244 mm |
Width | 244 mm |
Height | 244 mm |
How often does a product of this brand in the «Motherboards» category have a defect within the first 24 months?
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Source: Digitec Galaxus