ASUS PRIME B850M-A-CSM

Motherboard | micro ATX | Socket AM5 | AMD B850 Chipset | USB 3.2 Gen 2, USB 3.2 Gen 1, USB-C 3.2 Gen 1 | 2.5 Gigabit LAN | onboard graphics (CPU required) | HD Audio (8-channel)

MPN 90MB1LQ0-M0EAYC
Manufacturer ASUS
QuickCode 1669109
Qty immediately available 12
Total stock 12
RRP: £216.46 inc VAT
£140.39 inc VAT
£116.99 ex VAT
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35%
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All products come in brand new original packaging.

Delivery
Order by 4:30pm UK Time (excluding weekends and Bank Holidays) for UK Mainland next working day delivery.

Shipping rates applicable only to UK Mainland Addresses and exclude Northern Ireland, Eire, Scottish Offshore, Scottish Highlands, Channel Islands and Isle of Man.

7 Working Days£0.00 Within 1 week (UK Mainland), free if order over £100 + VAT
3 Working Days£4.98 3 working days (UK Mainland)
Next Working Day£7.97 Next working day (UK Mainland)
Delivery exceptions apply

Main Specification

Product Description ASUS PRIME B850M-A-CSM - motherboard - micro ATX - Socket AM5 - AMD B850
Product Type Motherboard - micro ATX
Chipset Type AMD B850
Processor Socket 1 x Socket AM5
Compatible Processors (supports Ryzen 7000/8000/9000 Series)
Max RAM Size 256 GB
RAM Supported 4 DIMM slots - DDR5, non-ECC, ECC, on-die ECC, unbuffered
Storage Ports 4 x SATA-600 (RAID), 3 x M.2
USB / FireWire Ports 2 x USB 3.2 Gen 2 + 2 x USB 3.2 Gen 1 + 4 x USB 2.0 + (1 x USB-C 3.2 Gen 1 + 2 x USB 3.2 Gen 1 + 4 USB 2.0 via headers)
Audio HD Audio (8-channel)
LAN 2.5 Gigabit Ethernet

General

Product Type Motherboard - micro ATX
Chipset Type AMD B850
Processor Socket Socket AM5
Max Processors Qty 1
Compatible Processors (supports Ryzen 7000/8000/9000 Series)

Supported RAM

Max Size 256 GB
Technology DDR5
Bus Clock 8000 MT/s (O.C.)
Supported RAM Integrity Check Non-ECC, ECC, on-die ECC
Registered or Buffered Unbuffered
Features Dual channel memory architecture, AMD EXPO technology

Audio

Type HD Audio (8-channel)
Compliant Standards High Definition Audio

LAN

Network Interfaces 2.5 Gigabit Ethernet

Expansion / Connectivity

Expansion Slots 1 x CPU 4 x DIMM 288-pin 1 x PCIe 5.0 x16 1 x PCIe 4.0 x16 2 x M.2 socket (2280 M.2 Key M slot) M.2 socket (2242/2260/2280 M.2 Key M slot)
Storage Interfaces SATA-600 -connectors: 4 x 7pin Serial ATA - RAID 0 / RAID 1 / RAID 10 / RAID 5 PCIe 5.0 -connectors: 1 x M.2 - RAID 0 / RAID 1 / RAID 10 / RAID 5 PCIe 4.0 -connectors: 2 x M.2 - RAID 0 / RAID 1 / RAID 10 / RAID 5
RAID Features AMD RAID Xpert2 Technology
Interfaces 1 x LAN (2.5Gigabit Ethernet) 1 x HDMI 2 x DisplayPort 2 x USB 3.2 Gen 2 2 x USB 3.2 Gen 1 4 x USB 2.0 1 x audio line-out - mini-jack 1 x audio line-in - mini-jack 1 x microphone - mini-jack
Internal Interfaces 1 x USB-C 3.2 Gen 1 - header 2 x USB 3.2 Gen 1 - header 4 x USB 2.0 - header 1 x SPDIF out - header 1 x SPI - header 1 x audio - header 1 x serial - header
Power Connectors 24-pin main power connector, 8-pin ATX12V connector, 4-pin ATX12V connector

Features

BIOS Type AMI
BIOS Features UEFI BIOS, ASUS EZ Flash 3, ASUS UEFI BIOS EZ Mode
Sleep / Wake Up Wake on LAN (WOL), wake on PME
Hardware Features ASUS Enhanced Memory Profile (AEMP), CrashFree BIOS 3, Preboot eXecution Environment (PXE), LANGuard, ASUS 5X Protection III, BIOS FlashBack button, ASUS DIGI+ VRM, ASUS Overvoltage Protection, ASUS SafeSlot, ASUS Q-Design, ASUS Stainless Steel Back I/O, ASUS Aura Sync, ASUS EZ DIY, BIOS FlashBack LED, M.2 heatsink, Q-Dashboard, Q-DIMM, Q-LED Core, Q-Slot, VRM heatsink design, 6 Layer PCB, 8+2+1 Phase Power Design, AI Cache Boost, chipset heatsink

Miscellaneous

Included Accessories 1 x M.2 rubber package, 2 x M.2 screw package, ACC Express Activation Key Card
Cables Included 2 x Serial ATA cable
Software Included Armoury Crate, ASUS AURA Creator, ASUS Fan Xpert 2+, ASUS AI Advisor, TurboV Core, ASUS CPU-Z, Norton 360 Deluxe (60 days trial), WinRAR (40 days trial)
Compliant Standards DisplayPort 1.4
Width 24.4 cm
Depth 24.4 cm
Product features

Versatile expansion options

This motherboard includes multiple expansion slots, featuring two PCIe 5.0 x16 slots and a total of four DIMM slots that cater to various hardware configurations, providing flexibility for upgrades.

Comprehensive connectivity

Equipped with multiple USB ports including USB 3.2 Gen 2, USB-C, and traditional USB 2.0 options, this motherboard ensures that users can connect a wide array of peripherals effortlessly. Additionally, audio line-in and line-out interfaces deliver high-definition audio outputs.

Enhanced reliability features

The ASUS PRIME B850M-A-CSM incorporates several reliability features such as ASUS 5X Protection III, CrashFree BIOS 3, and the unique BIOS FlashBack button, ensuring a secure and seamless user experience.

Advanced cooling design

Designed with a VRM heatsink and M.2 heatsink, this motherboard offers efficient heat dissipation to maintain optimal performance during demanding tasks, enhancing system stability under load.

User-friendly BIOS

Featuring an AMI BIOS with ASUS UEFI BIOS EZ Mode and ASUS EZ Flash 3, this motherboard makes system configuration and updates straightforward, perfect for beginners and experienced users.
Key selling points
  • Supports Ryzen 7000/8000/9000 Series processors
  • Compatible with DDR5 memory technology for faster performance
  • Equipped with ample M.2 and SATA storage options
  • Includes advanced BIOS features for easy updates
  • Robust networking capabilities with 2.5 Gigabit Ethernet
References

MPN: 90MB1LQ0-M0EAYC

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