Key Features
- ATX Form Factor
- AMD B850 Chipset
- Socket AM5
- DDR5 (Max: 256GB / 4 slots)
- 3 x M.2 & 15 x USB & 4 x SATA
- HDMI
Shipping & Delivery
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Standard Delivery
Our courier will deliver to the specified address
5-7 Working Days
From £4.99
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Express Delivery
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From £9.99
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Asus PRIME B850-PLUS-CSM ATX Motherboard for AMD AM5 CPUs
£173.70 Original price was: £173.70.£160.84Current price is: £160.84. INC VAT
In stock
In stock
You Save: £12.86 (7%)
Key Features
- ATX Form Factor
- AMD B850 Chipset
- Socket AM5
- DDR5 (Max: 256GB / 4 slots)
- 3 x M.2 & 15 x USB & 4 x SATA
- HDMI
Shipping & Delivery
-
Standard Delivery
Our courier will deliver to the specified address
5-7 Working Days
From £4.99
-
Express Delivery
DHL courier will deliver to the specified address
2-3 Working Days
From £9.99
-
Free 30-Day returns
Description
ASUS PRIME B850-PLUS-CSM Ultimate Stability with PCIe 5.0 Power
Professional-Grade Stability and Longevity
The ASUS PRIME B850-PLUS-CSM is built for organizations and system integrators seeking a stable and reliable computing foundation. As part of the ASUS Corporate Stable Model (CSM) lineup, it guarantees a long product lifecycle, commercial-grade stability, and includes ASUS Control Center Express for IT management. This integrated software enables streamlined deployment, centralized monitoring, and endpoint security control, making it an ideal choice for businesses that require consistent performance and reduced maintenance complexity.
Advanced Platform for Modern Performance
Powered by the AMD B850 chipset and supporting the latest AMD Ryzen™ 9000, 8000, and 7000 Series processors, this ATX motherboard offers next-gen PCIe 5.0 support, three M.2 slots (including one at PCIe 5.0 x4), and dual-channel DDR5 memory speeds of up to 8000+ MT/s (OC). Whether for content creation, software development, or data-intensive multitasking, the PRIME B850-PLUS-CSM delivers the bandwidth and speed required for professional workloads. ASUS Enhanced Memory Profile (AEMP) and EXPO support optimize memory modules—even non-binned kits—ensuring you get the most out of your DDR5 RAM.
Built for Versatility and Cooling Efficiency
Cooling and connectivity are key highlights of this board’s design. Multiple onboard heatsinks and hybrid fan headers keep temperatures under control even during heavy loads. ASUS Fan Xpert 2+ offers fine-tuned thermal management, while robust rear and front USB options (including USB 10Gbps Type-A and Type-C) support today’s fastest peripherals. The Realtek 2.5Gb Ethernet ensures low-latency networking, and addressable Gen2 RGB headers with Aura Sync let users personalize their rig with synchronized lighting effects. Whether you’re building for business or powerful everyday performance, the PRIME B850-PLUS-CSM is an exceptional foundation.
| Specification | Details |
|---|---|
| Motherboard Type | Desktop |
| Form Factor | ATX |
| Socket | AMD AM5 |
| Chipset | AMD B850 |
| DDR Type | DDR5 |
| CPU Support | Click here for CPU support |
| RAM Technology | DDR5 (Dual Channel), ECC and Non-ECC Un-buffered DIMM, Supports AMD EXPO, ASUS AEMP |
| RAM Slots | 4 x DIMM |
| RAM Speeds | Up to 8000+MT/s (OC) |
| Maximum Memory | 256GB |
| Graphics | Integrated Graphics (Depends on CPU) |
| Graphics Ports | 1 x HDMI, 1 x Display Port |
| PCI/PCI Express | 1 x PCIe 5.0 x16, 1 x PCIe 4.0 x16, 1 x PCIe 4.0 x16 (x4) |
| Storage | 4 x SATA III, 3 x M.2 |
| RAID | RAID 0/1/5/10 (varies by CPU) |
| Wireless | None |
| LAN | 2.5GB LAN |
| Audio | Realtek 7.1 Surround Sound High Definition Audio CODEC |
| Rear USB Ports | 4 x USB 10Gbps (3 x Type-A, 1 x Type-C), 2 x USB 5Gbps, 2 x USB 2.0 |
| Front USB Ports | 1 x USB 5Gbps Type-C, 2 x USB 5Gbps, 6 x USB 2.0 |
| Back Panel I/O Ports | 4 x USB 10Gbps (3 x Type-A, 1 x Type-C), 2 x USB 5Gbps, 2 x USB 2.0, 1 x Display Port, 1 x HDMI, 1 x 2.5Gb LAN, 3 x Audio jacks, 1 x BIOS FlashBack button |
| Internal I/O | 1 x CPU Fan, 1 x CPU OPT Fan, 1 x AIO Pump, 4 x Chassis Fan, 1 x 24-pin Main, 1 x 8-pin +12V CPU, 1 x 4-pin +12V CPU, 3 x M.2 (Key M), 4 x SATA, USB 2.0/3.2 headers, RGB headers, S/PDIF Out, COM, TPM, Clear CMOS, Thunderbolt header |
| Package Type | Retail |
| Package Weight | 1.260 kg |
| Warranty | 3 Years |



