MSI XpertStation WS300: NVIDIA GB300 Workstation in a 1.6kW Package

MSI's booth at NVIDIA GTC 2026 showcased several impressive systems, but the standout was undoubtedly the XpertStation WS300. This workstation packs NVIDIA's GB300 platform into a desktop-friendly form factor that runs on a standard outlet, making high-performance AI and compute accessible without requiring specialized infrastructure.

MSI XpertStation WS300: GB300 Platform in a 1.6kW Envelope

The XpertStation WS300 represents MSI's interpretation of NVIDIA's GB300 platform, designed to deliver enterprise-class performance in a workstation package. At the heart of this system is the NVIDIA Grace CPU paired with the Blackwell Ultra (B300) GPU, all connected through NVIDIA's ConnectX-8 networking.

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What makes this system particularly interesting is its power envelope. While many high-performance computing systems require substantial power infrastructure, the WS300 operates within a 1.6kW limit. This constraint drives innovative design choices throughout the system.

Liquid Cooling Architecture

The most visually striking aspect of the WS300 is its comprehensive liquid cooling solution. A large liquid cooling structure dominates the chassis interior, but this isn't just for show—it's essential for managing the thermal output of multiple high-performance components.

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Every major heat-generating component receives liquid cooling treatment:

• NVIDIA Grace CPU with its SOCAMM memory
• Blackwell Ultra GPU
• NVIDIA ConnectX-8 network controller
• Optical cages

The liquid cooling blocks are integrated throughout the system, creating a unified thermal management solution that allows these components to operate at peak performance within the power constraints.

Memory Configuration

Memory capacity is a key strength of the WS300. The system features 496GB of LPDDR5X memory on the NVIDIA Grace CPU, providing substantial capacity for memory-intensive workloads. The Blackwell Ultra GPU, while recently down-spec'd to 252GB with 7.1TB/s bandwidth (as we covered in our NVIDIA DGX Station Systems Available piece), still offers impressive memory resources for AI and compute tasks.

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Connectivity and Expansion

Despite its compact form factor, the WS300 offers surprising expansion capabilities. The rear panel includes:

• Four USB ports
• 10GbE (AQC113C) network port
• Audio output
• Micro-USB and MiniDP for BMC access
• 400GbE QSFP112 ports (labeled as QSFP+ on pre-production samples)

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A particularly clever design feature is the additional I/O located on top of the chassis, providing convenient access to ports without reaching around to the back of the system.

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PCIe Expansion Options

One of the most interesting aspects of the WS300 is its three PCIe slots located at the bottom of the chassis. Initially conceived to support a low-power GPU for additional display outputs alongside the integrated Blackwell Ultra, these slots can actually accommodate high-end NVIDIA RTX Pro 6000 Blackwell GPUs.

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This creates an interesting power management challenge. With a practical 1.6kW limit, adding a high-power PCIe GPU means the power budget for the Grace CPU and B300 GPU must be adjusted accordingly. However, for users requiring a high-end rendering pipeline for graphical work, having a dedicated high-end GPU with display capabilities in a PCIe slot is invaluable.

Storage Capabilities

The system supports multiple M.2 NVMe SSDs of various sizes, providing flexible and high-speed storage options for different workload requirements.

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Market Position and Use Cases

The XpertStation WS300 occupies an interesting niche in the market. It bridges the gap between traditional desktop workstations and data center-grade systems, offering:

• AI Development: The combination of Grace CPU and Blackwell Ultra GPU provides excellent performance for AI model development and training
• Scientific Computing: The high memory capacity and computational power suit scientific simulations and data analysis
• Content Creation: With PCIe expansion for high-end GPUs, the system can serve as a powerful workstation for 3D rendering and video production
• Edge Computing: The standard outlet power requirement makes it suitable for edge deployments where data center infrastructure isn't available

Design Philosophy

The WS300 represents a thoughtful approach to balancing performance with practical constraints. By limiting the system to 1.6kW, MSI has created a workstation that can operate in standard office environments while still delivering substantial computational capabilities. The liquid cooling solution, while complex, is necessary to extract maximum performance from the components within this power envelope.

Looking Ahead

As these systems become available, they could significantly impact how organizations approach high-performance computing. The ability to deploy GB300-class performance without specialized power infrastructure could democratize access to advanced AI and compute capabilities.

MSI's implementation demonstrates how workstation manufacturers are adapting enterprise-class technologies for desktop environments, potentially bringing data center-level performance to individual researchers, developers, and creative professionals.

The XpertStation WS300 is more than just a workstation—it's a glimpse into how high-performance computing is evolving to become more accessible and practical for a wider range of users and use cases.