ASUS PRIME B850M-F-CSM AMD AM5 Micro-ATX Commercial Motherboard
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Technical Specifications
| Attribute | Detailed Specification |
| Product Full Name | ASUS PRIME B850M-F-CSM Commercial Motherboard |
| Model & Part Number | PRIME B850M-F-CSM / 90MB1L00-M0EAY0 |
| Brand / Manufacturer | ASUS |
| Body Color | Black Commercial PCB with Silver Metallic Thermal Heatsink Accents |
| Chipset | AMD B850 |
| Chipset Brand | AMD |
| Form Factor | Micro-ATX Form Factor (24.4 cm × 22.1 cm / 9.6 in × 8.7 in) |
| Generation | AMD Ryzen 9000 / 8000 / 7000 Series Desktop Processors |
| Socket Support | AMD Socket AM5 |
| Memory Type | DDR5 Non-ECC & ECC Un-buffered DIMM (Dual-Channel Architecture, AMD EXPO Support, ASUS AEMP) |
| Memory Slot | 2 × DDR5 DIMM Slots |
| Max Memory | Up to 128 GB (Up to DDR5 8000+ MT/s OC) |
| M.2/SSD Expansion Slot | Total 2 × Onboard M.2 Slots + 4 × SATA 6Gb/s Ports: • M.2_1: PCIe 5.0 x4 (Key M, 2242/2260/2280 via CPU) • M.2_2: PCIe 4.0 x4 (Key M, 2242/2260/2280 via AMD B850 Chipset) |
| RGB Support | Yes (Aura Sync: 1 × Addressable Gen 2 Header + 1 × 4-pin Aura RGB Header) |
| WiFi | No (Features 1 × M.2 Slot [Key E, PCIe] for optional Wi-Fi module upgrade) |
| VGA Port | 1 × VGA Port |
| DVI Port | No |
| HDMI Port | 1 × HDMI 2.1 Port (Supports up to 4K @ 60Hz) |
| DisplayPort (DP) | No |
| Thunderbolt | No |
| PCIe Expansion Slots | 1 × PCIe 5.0 x16 SafeSlot (supports x16 mode with Ryzen 9000/7000) 1 × PCIe 4.0 x1 Slot (via Chipset) |
| SATA & Storage Ports | 4 × SATA 6Gb/s Ports |
| RAID Support | AMD RAIDXpert2 Technology: RAID 0/1/10 (NVMe & SATA) |
| Wired Networking (LAN) | 1 × Realtek 2.5Gb Ethernet (2.5G RJ45) with ASUS LANGuard |
| Audio Solution | Realtek 7.1 Surround Sound High Definition Audio CODEC (Audio Shielding, Dedicated Audio PCB Layers, Premium Audio Capacitors) |
| Diagnostic & Display | Q-LED Core Indicators (CPU, DRAM, VGA, Boot Device status) |
| Back Panel USB Ports | 2 × USB 10Gbps (Type-A) 2 × USB 5Gbps (Type-A) 2 × USB 2.0 (Type-A) 1 × PS/2 Keyboard/Mouse Combo Port 1 × BIOS FlashBack Button |
| Front Panel USB Headers | 1 × USB 5Gbps Type-C Connector 1 × USB 5Gbps Header (Supports 2 additional Type-A ports) 2 × USB 2.0 Headers (Supports 4 additional Type-A ports) |
| Cooling & VRM Architecture | Digital Multi-Stage Power Delivery with ASUS DIGI+ VRM, Extruded Silver Aluminum VRM Heatsink, High-Conductivity Thermal Pads, and Primary M.2 Heatsink |
| Corporate Stable Model (CSM) | ASUS Control Center Express (ACCE) centralized IT management software license included, guaranteed long lifecycle supply (up to 36 months), and Event Notice Service (EOL notice 6 months prior) |
| ASUS Special & DIY Features | ASUS 5X Protection III (DIGI+ VRM, LANGuard, Overvoltage Protection, SafeSlot Core+, Stainless Steel Back I/O), M.2 Q-Latch, BIOS FlashBack |
| Operating System Support | Windows 11 (64-bit), Windows 10 (64-bit) |
| Target Workload Applications | Corporate IT Fleets, Small-to-Medium Enterprise Desktops, Commercial Automation, Daily Office Productivity, Government & Educational Workstations |
| Package Contents | 1 × ASUS PRIME B850M-F-CSM Motherboard 2 × SATA 6Gb/s Cables 1 × M.2 Screw Package / Rubber Pads 1 × ASUS Control Center Express License Voucher 1 × User Documentation |
| Warranty | 3 Years Standard Limited Manufacturer Warranty |
Product Description
The ASUS PRIME B850M-F-CSM is a commercial Micro-ATX motherboard engineered to deliver long-term reliability, centralized remote IT management, and high-speed core connectivity for AMD Ryzen 9000, 8000, and 7000 Series desktop processors on the AM5 socket. Developed under the ASUS Corporate Stable Model (CSM) framework, this motherboard is designed specifically for enterprise environments, institutional desktops, and business workstation deployments that demand guaranteed supply longevity, scheduled end-of-life notices, and remote infrastructure administration.
Stable power delivery under sustained daily operational loads is managed by a digital multi-stage VRM design controlled by ASUS DIGI+ VRM architecture and supplied via an 8-pin ProCool CPU power connector. Silver-anodized extruded aluminum heatsinks shield the primary power stages, coupled with high-conductivity thermal pads and a dedicated primary M.2 heatspreader to maintain low operating temperatures and sustained computing efficiency during 24/7 business workflows. Across 2 DDR5 DIMM slots, the motherboard accommodates high-speed dual-channel memory configurations up to 128 GB with frequencies reaching 8000+ MT/s (OC) through AMD Extended Profiles for Overclocking (EXPO) and ASUS Enhanced Memory Profile (AEMP).
Graphics and system storage leverage modern PCIe architecture. The primary PCIe 5.0 x16 SafeSlot is structurally reinforced to securely anchor discrete graphics cards or high-bandwidth add-in expansion cards. Storage expansion is supported by two onboard M.2 slots (a primary slot wired for ultra-fast PCIe 5.0 x4 bandwidth and a secondary slot operating at PCIe 4.0 x4) alongside four SATA 6Gb/s ports for conventional hard drives and mass data archiving.
System networking is anchored by a Realtek 2.5-Gigabit Ethernet port fortified with ASUS LANGuard for reliable, low-latency commercial network communication, with an onboard M.2 Key-E slot available for optional Wi-Fi module expansion. Display versatility is provided through HDMI 2.1 and legacy VGA outputs to support both modern monitors and legacy enterprise display setups, complemented by a front-panel USB 5Gbps Type-C header. Complete with an included ASUS Control Center Express (ACCE) management license, ASUS 5X Protection III hardware safeguards, and a 3-year warranty, the ASUS PRIME B850M-F-CSM delivers an efficient, enterprise-grade foundation for commercial AM5 desktop computing.
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