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ASUS PRIME B850-PLUS-CSM AMD RYZEN DDR5 ATX Motherboard - Socket AM5 - 90MB1LC0-M0EAYC
ASUS PRIME B850-PLUS-CSM motherboard features an AM5 socket, optimised for AMD Ryzen processors. Equipped with DDR5 support, it ensures high-speed data transfer and efficient multitasking. With robust power delivery and enhanced connectivity, this ATX motherboard is ideal for gamers and creators seeking reliability and performance in their builds.
Features


General
SKU | 76B-3F6-42D |
Features
Brand | Asus |
Model Number | 90MB1LC0-M0EAYC |
Motherboard Chipset | B850 Chipset (Ryzen AM5) |
CPU Socket Type | LGA 1718 |
Memory Type | DDR5 |
Form Factor | ATX |
Key Features |
Socket AM5 for AMD Ryzen processors Supports DDR5 memory for high-speed performance ATX form factor for enhanced compatibility and expandability Dual PCIe 5.0 x16 slots for advanced graphics cards Multiple M.2 slots for fast NVMe storage options USB 3.2 Gen 2 ports for high-speed data transfer Enhanced cooling solutions with heat sinks and fan headers AI Noise-cancelling microphone technology Robust power delivery with durable capacitors Comprehensive connectivity options including HDMI and DisplayPort |
Description
ASUS PRIME B850-PLUS-CSM AMD RYZEN DDR5 ATX Motherboard - Socket AM5 - 90MB1LC0-M0EAYC
ASUS PRIME B850-PLUS-CSM AMD RYZEN DDR5 ATX Motherboard
The ASUS PRIME B850-PLUS-CSM is a state-of-the-art motherboard designed specifically for AMD Ryzen processors. This motherboard sits in the ATX format, ensuring compatibility with a wide range of builds while maximizing performance and efficiency.
Built on the advanced Socket AM5 architecture, the B850-PLUS-CSM is engineered to support the latest DDR5 memory. This enhances system memory bandwidth tremendously, resulting in faster data transfer rates and improved overall system responsiveness. Gamers and content creators alike will appreciate the seamless performance enhancements offered by this cutting-edge technology.
Designed with durability and reliability in mind, the ASUS PRIME B850-PLUS-CSM features robust power delivery systems and high-quality components. With a fortified PCB and premium capacitors, you can trust this motherboard to withstand rigorous use, making it an ideal choice for any high-performance computing environment.
The connectivity options on the B850-PLUS-CSM are extensive. It boasts multiple USB 3.2 Gen 2 ports, ensuring high-speed connections for your peripherals. With support for PCIe 5.0, this motherboard enables next-generation graphics cards to unleash their full potential. Whether you are building a gaming rig or a professional workstation, the versatility of this motherboard will accommodate your needs.
Moreover, the ASUS PRIME B850-PLUS-CSM incorporates comprehensive cooling solutions, featuring fan headers and thermal pads that ensure optimal heat dissipation. This not only enhances system stability but also extends the longevity of your components. Users can monitor and manage cooling configurations easily through ASUS’s intuitive software.
Another notable feature is the advanced BIOS interface that allows for effortless overclocking and system tuning. This means you can customize your settings to maximize performance and adapt to your specific workload demands. Even those new to PC building will find this user-friendly experience beneficial.
For gamers, the motherboard offers high-fidelity audio output powered by the realtek audio chipset, drawing you deeper into your gaming world with crystal clear sound quality. Plus, with the built-in Ethernet connectivity, you can expect lower latency and higher speeds, giving you that competitive edge on the battlefield.
Investing in the ASUS PRIME B850-PLUS-CSM motherboard means you are choosing performance, durability, and cutting-edge technology. It aligns with the needs of both casual users and hardcore gamers who require reliability under pressure. Its sleek design complements modern builds, making it an aesthetic choice for your setup.
In conclusion, the ASUS PRIME B850-PLUS-CSM AMD RYZEN DDR5 ATX Motherboard is crafted for those seeking a high-performance experience. Make the smart choice today and equip your system with a motherboard that truly stands out in terms of features, functionality, and future-proofing. Experience the next level of computing power with the ASUS PRIME B850-PLUS-CSM.
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Specification
Chipset
AMD B850 Chipset
Memory
4 x DIMM slots, max. 256GB, DDR5 Supports up to 8000+MT/s (OC) with Ryzen™ 9000 & 8000 & 7000 Series Processors, ECC and Non-ECC Un-buffered DIMM*
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO™)
ASUS Enhanced Memory Profile (AEMP)
* Supported memory types, data rate (speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information please refer to CPU/Memory Support list under the Support tab of product information site or visit https://www.asus.com/support/download-center/. Adjustments will be made based on the specifications of mass-produced memory products available on the market.
* Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
Graphics
1 x DisplayPort**
1 x HDMI™ port***
* Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications.
** Supports max. 8K@30Hz as specified in DisplayPort 1.4.
*** Supports 4K@60Hz as specified in HDMI 2.1.
Expansion Slots
AMD Ryzen™ 9000 & 7000 Series Desktop Processors*
1 x PCIe 5.0 x16 slot (supports x16 mode)
AMD Ryzen™ 8000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x8/x4 mode)**
AMD B850 Chipset
1 x PCIe 4.0 x16 slot (support x4 mode)
* Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/).
** Specifications vary by CPU types.
- To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported
Storage
Supports 3 x M.2 slots and 4 x SATA 6Gb/s ports
AMD Ryzen™ 9000 & 7000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 5.0 x4 mode)
M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
AMD Ryzen™ 8000 Series Desktop Processors
M.2_1 slot (Key M), type 2280 (supports PCIe 4.0 x4 mode)
M.2_2 slot (Key M), type 2280 (supports PCIe 4.0 x4/x2 mode)*
AMD B850 Chipset
M.2_3 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x2 mode)
4 x SATA 6Gb/s ports
* Specifications vary by CPU types.
AMD RAIDXpert2 Technology
Ryzen™ 9000 Series Processors: RAID 0/1/5/10
Ryzen™ 8000 Series Processors: RAID 0/1
Ryzen™ 7000 Series Processors: RAID 0/1/10
Ethernet
1 x Realtek 2.5Gb Ethernet
ASUS LANGuard
USB
Rear USB (Total 8 ports)
4 x USB 10Gbps port(s) (3 x Type-A + 1 x USB Type-C®)
2 x USB 5Gbps ports (2 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
Front USB (Total 7 ports)
1 x USB 5Gbps connector (supports USB Type-C®)
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
* USB Type-C® power delivery output: max. 5V/3A
Audio
Realtek 7.1 Surround Sound High Definition Audio CODEC*
- Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking
- Supports up to 24-Bit/192 kHz playback
Audio Features
- Audio Shielding
- Premium audio capacitors
- Dedicated audio PCB layers
* A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output.
Back Panel I/O Ports
1 x USB 10Gbps port (1 x USB Type-C®)
3 x USB 10Gbps ports (3 x Type-A)
2 x USB 5Gbps ports (2 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
1 x DisplayPort
1 x HDMI™ port
1 x Realtek 2.5Gb Ethernet port
3 x Audio jacks
1 x BIOS FlashBack™ button
Internal I/O Connectors
Fan and Cooling Related
1 x 4-pin CPU Fan header
1 x 4-pin CPU OPT Fan header
1 x 4-pin AIO Pump header
4 x 4-pin Chassis Fan headers
Power Related
1 x 24-pin Main Power connector
1 x 8-pin +12V CPU Power connectors
1 x 4-pin +12V CPU Power connectors
Storage Related
3 x M.2 slots (Key M)
4 x SATA 6Gb/s ports
USB
1 x USB 5Gbps connector (supports USB Type-C® )
1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
2 x USB 2.0 headers support 4 additional USB 2.0 ports
Miscellaneous
3 x Addressable RGB Gen 2 headers
1 x Clear CMOS header
1 x Chassis Intrusion header
1 x COM Port header
1 x Front Panel Audio header (F_AUDIO)
1 x S/PDIF Out header
1 x SPI TPM header (14-1 pin)
1 x 10-1 pin System Panel header
1 x Thunderbolt™ (USB4®) header
Special Features
ASUS 5X PROTECTION III
- DIGI+ VRM
- LANGuard
- Overvoltage protection
- SafeSlot
- Stainless-steel back I/O
ASUS Q-Design
- Q-Dashboard
- Q-DIMM
- Q-LED Core
- Q-Slot
ASUS Thermal Solution
- Flexible M.2 heatsink
- VRM heatsink design
ASUS EZ DIY
- BIOS FlashBack™ button
- BIOS FlashBack™ LED
- Pre-mounted I/O shield
- SafeSlot
Aura Sync
- Addressable RGB Gen 2 headers
Software Features
ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
- Fan Xpert 2+
- Power Saving
ASUS AI Advisor
ASUS Driver Hub
TurboV Core
ASUS CPU-Z
Adobe Creative Cloud (Free Trial)
Norton 360 Deluxe (60 Days Free Trial)
WinRAR (40 Days Free Trial)
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode
- ASUS MyHotkey
Remote Management Features
IT Management software supported
- ASUS Control Center Express(ACCE)
BIOS
256 Mb Flash ROM, UEFI AMI BIOS
Manageability
WOL by PME, PXE
Accessories
Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x M.2 rubber packages
3 x Screw packages for M.2 SSD
Documentation
1 x ACC Express Activation Key Card
1 x Quick start guide
Operating System
Windows® 11, Windows® 10 64-bit
Form Factor
ATX Form Factor
12 inch x 9.6 inch ( 30.5 cm x 24.4 cm )