Cisco UCS C845A M8 Rack Server Data Sheet

Data Sheet

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Updated:July 16, 2025

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Updated:July 16, 2025
 

 

The Cisco UCS® C845A M8 Rack Server is a highly scalable, flexible, and customizable AI system based on the NVIDIA MGX reference design for accelerated computing. With support for two (2) to eight (8) NVIDIA or AMD PCIe GPUs and NVIDIA AI Enterprise software, it delivers high performance for a wide range of AI workloads – including Generative AI fine-tuning, RAG and inference.

Product overview

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The Cisco UCS C845A M8 Rack Server is designed to address the most demanding AI workloads. Now an integral component of Cisco® AI PODs (Cisco Validated Designs for AI), the Cisco UCS C845A M8 provides a robust foundation for modern AI infrastructure, allowing organizations to easily scale their AI capabilities with confidence.

With support for 2, 4, 6, or 8 NVIDIA GPUs—including the NVIDIA RTX Pro 6000 Blackwell, H100 NVL, H200 NVL, L40S, and also supports AMD Instinct MI210 GPUs this system offers unparalleled flexibility to meet the diverse needs of enterprises. Leveraging the sophistication of the MGX modular reference design, this platform is also future-ready, with next-generation NVIDIA GPUs expected to seamlessly integrate as they become available.

As part of Cisco AI PODs, the UCS C845A M8 is designed to accelerate workloads such as large-scale deep learning, Large Language Model (LLM) training, model optimization, and AI inference. It supports hybrid AI workflows across cloud and edge environments, making it the perfect solution for enterprises working on cutting-edge applications such as AI agents, conversational AI, intelligent search, and virtual desktops. Enhanced by 5th Gen AMD EPYC "Turin" CPUs and NVIDIA BlueField-3 DPUs, this server eliminates performance bottlenecks, ensuring optimal CPU and GPU utilization for data-intensive workloads.

With seamless integration into Cisco Intersight®, customers can manage their entire infrastructure—including compute, storage, and networking—through a unified interface. The Cisco UCS C845A M8, now part of Cisco AI PODs, is the ideal platform for organizations seeking to scale their AI initiatives with confidence and efficiency.

What use cases does the Cisco UCS C845A M8 address?

The Cisco UCS C845A M8, a highly scalable and customizable server integrated into Cisco AI PODs, is engineered to drive a multitude of AI workloads. Its flexible GPU configurations enable it to address the most demanding AI challenges, including large deep learning, Large Language Model (LLM) training, model fine-tuning, large model inferencing, and Retrieval-Augmented Generation (RAG).

The platform's versatility is further enhanced by its support for various GPUs, each optimized for specific market needs:

NVIDIA H100 NVL:

     Large-scale High-Performance Computing (HPC) and AI workloads

     Advanced AI research and high-performance computing

     Generative AI inference for large language models

     High-performance AI training

NVIDIA H200 NVL:

     High-performance LLM inference

     Generative AI training and fine-tuning

NVIDIA RTX Pro 6000 Blackwell:

     Agentic and physical AI: powering autonomous systems, smart factories, and robotics for real-time decision-making

     Advanced scientific computing and rendering: accelerating complex simulations, medical imaging, and engineering analysis across hybrid environments

     High-fidelity 3D graphics and video: driving content creation, post-production, and immersive VR/AR experiences

     Hybrid AI/ML workflows: enabling seamless training, inferencing, and AI-assisted graphics across on-premises and cloud

     Edge-to-core AI applications: supporting real-time AI at the edge with centralized management and cloud integration

AMD Instinct MI210:

     High-Performance Computing (HPC): accelerating scientific research, simulations, and complex modeling

     Energy-efficient AI/ML workloads: supporting deep learning training and inferencing with a focus on power efficiency

     Large-scale data analytics: speeding up data processing and analytics for enterprise applications

     Hybrid AI inference: providing balanced compute and efficiency for inferencing tasks in diverse environments

     Specialized simulation workloads: enhancing performance for engineering, manufacturing, and bioinformatics simulations

NVIDIA L40S:

     Generative AI foundation model fine-tuning

     Deployment of intelligent chatbots and search tools

     Language processing and conversational AI

     Graphics, rendering, and NVIDIA Omniverse applications

     Virtual desktop infrastructure

Features and benefits

Table 1.           Summary of features and benefits of the Cisco UCS C845A M8 Rack Server

Feature

Benefit

Scalable and flexible

  Rapid deployment of AI and accelerated computing technologies
  Suited for any data-center environment

Built on NVIDIA MGX design

  Modular and future-ready design that can adapt to evolving technology needs
  Next-generation GPUs can be integrated without purchasing a new platform

Dense design

  Drive 8x NVIDIA GPUs, 2x AMD Turin CPUs, and 5x PCIe slots in a 4RU chassis

Cisco Intersight support

  See, control, and automate your compute, storage, and networking infrastructure throughout its lifecycle

E1.S drives for local storage

  Increased storage density, improved thermal management, and hot-swappable drives
  High performance, lower power consumption, and compact form factor

Addition to NVIDIA MGX reference design

  Improved power delivery, fewer PCBs, and improved cable routing

Product specifications

Table 2.           Specifications of the Cisco UCS C845A M8 Rack Server

Item

Specifications

Form factor

4RU Air-cooled rack server

Processors

2x 5th Gen AMD EPYC 9355 32 cores, 3.55GHz (max boost 4.4 GHz) or

2x 5th Gen AMD EPYC 9375F 32 cores, 3.85GHz (max boost 4.8 GHz) or

2x 5th Gen AMD EPYC 9455 48 cores, 3.15GHz (max boost 4.4 GHz) or

2x 5th Gen AMD EPYC 9475F 48 cores, 3.65GHz (max boost 4.8 GHz) or

2x 5th Gen AMD EPYC 9555 64 cores, 3.2GHz (max boost 4.4 GHz) or

2x 5th Gen AMD EPYC 9575F 64 cores, 3.3GHz (max boost 5 GHz) or

2x 5th Gen AMD EPYC 9655 96 cores, 2.6GHz (max boost 4.5 GHz)

Memory

32 DIMM slots (16 DIMMS per CPU)

32, 64, 96, 128GB DDR5 at up to 5200 MT/s for up to 4TB memory system capacity

Refer to the Cisco UCS C845A M8 AI Memory Guide.

GPUs

Up to 8x NVIDIA RTX Pro 6000 Blackwell Server GPU or

Up to 8x NVIDIA H200 NVL or

Up to 8x NVIDIA H100 NVL or

Up to 8x NVIDIA L40S or

Up to 8x AMD Instinct MI210

Boot drives

2x 960GB M.2 SATA SSDs (includes hardware RAID)

2x 240GB M.2 SATA SSDs (includes hardware RAID)

Internal storage

Up to 20x 1.9TB E1.S 15 mm NVMe PCIe drives

Up to 20x 3.8TB E1.S 15 mm NVMe PCIe drives

Up to 20x 7.6TB E1.S 15 mm NVMe PCIe drives

PCIe slots

One PCIe Gen5x16 FHHL for north-south traffic – NVIDIA ConnectX-7 (2x200G), NVIDIA BlueFiled-3 B3220 DPU

4x PCIe Gen5x16 FHHL for east-west traffic – NVIDIA ConnectX-7 (1x400G) or NVIDIA BlueField-3 3140H SuperNIC

OCP 3.0 slot

Intel® X710-DA2 (dual-port 10GBaseT) for x86 management

Power supply

4x 3.2kW 80Plus 12V M-CRPS hot-swappable redundant PSUs with N+1 Redundancy

Management

Cisco Intersight

Hardware and software interoperability

See the Cisco Hardware and Software Interoperability lists for a complete

listing of supported operating systems and peripheral options

Ordering information

Part #

Product description

UCS-MGPUM8-MLB

Cisco UCS-845A M8 Rack Server chassis Major Line Bundle (MLB)

This MLB consists of the server node (UCSC-C845A-M8) with software and Cisco Intersight options. Use this PID to begin a new configuration.

For more information, check the Cisco UCS C845A M8 Rack Server Ordering Guide.

Warranty information

Cisco UCS C845A M8 Rack Servers have a three-year Next-Business-Day (NBD) hardware warranty and
a 90-day software warranty.

Product sustainability

Information about Cisco’s Environmental, Social, and Governance (ESG) initiatives and performance is provided in Cisco’s CSR and sustainability reporting.

Table 3.           Cisco environmental sustainability information

Sustainability topic

Reference

General

Information on product-material-content laws and regulations

Materials

Information on electronic waste laws and regulations, including our products, batteries, and packaging

WEEE Compliance

Information on product takeback and reuse program

Cisco Takeback and Reuse Program

Sustainability inquiries

Contact: csr_inquiries@cisco.com

Material

Product packaging weight and materials

Contact: environment@cisco.com

Cisco and partner services

Cisco and our industry-leading partners deliver services that accelerate your transition to Cisco UCS solutions for AI and High-Performance Computing (HPC). Cisco Unified Computing Services can help you create an agile infrastructure, accelerate time to value, reduce costs and risks, and maintain availability during deployment and migration. After deployment, our services can help you improve performance, availability, and resiliency as your business needs evolve, and help you further mitigate risk.

For more information, visit https://www.cisco.com/go/unifiedcomputingservices.

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Our experts recommend

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Document history

New or Revised Topic

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Date

New Product overview, specifications and Ordering information

UCS C845A M8 Data Sheet

July 2025

 

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