Microsoft announces Surface RTX Spark Dev Box, a compact developer workstation

Jun 2, 2026

Microsoft has announced the Surface RTX Spark Dev Box, a compact workstation for AI developers. Powered by an NVIDIA RTX Spark superchip with 128GB of unified memory, it delivers up to 1 petaflop of local compute for training large models. The device ships with a pre-configured Windows 11 Pro environment, aiming to streamline workflows and reduce reliance on cloud services for prototyping.

Surface RTX Spark Dev Box

▪The device is intended for local-first AI development, allowing developers to prototype, fine-tune, and run models on their desk.
▪The Surface RTX Spark Dev Box will be available later in 2026 in the U.S. exclusively on Microsoft.com.
▪The Surface RTX Spark Dev Box has an aluminum chassis that also functions as a heatsink.
▪The device is a direct replacement for Qualcomm’s canceled Snapdragon Dev Kit, which was originally planned to ship two years ago.
▪Microsoft announced the Surface RTX Spark Dev Box, a compact PC designed for developers.

Developer workflow transformation drivers

▪The Dev Box allows developers to reserve cloud-based "frontier model" calls for the most complex problems by handling other tasks locally.
▪Modern software development involves longer-running jobs, larger models, and a need for local prototyping to manage cloud costs.

NVIDIA RTX Spark superchip specifications

▪The device features 128GB of unified memory and has a 100-watt thermal envelope.
▪The Surface RTX Spark Dev Box is powered by an Nvidia Arm-based RTX Spark superchip, which combines a Blackwell RTX GPU and a Grace CPU.
▪The superchip can deliver up to 1 petaflop of AI compute, enough to run models with over 120 billion parameters locally.

Pre-configured Windows development environment

▪Preinstalled tools on the device include Visual Studio Code, GitHub Copilot, Git, Python, and Node.js.
▪The Dev Box ships with Windows 11 Pro pre-configured for developers, with settings like dark theme enabled and widgets removed.
▪Developer Mode is enabled by default, PowerShell 7 is the default shell, and WSL 2 is configured with GPU passthrough and CUDA support.

Secured-core PC architecture

▪The device is built on a Secured-core PC architecture aligned with Microsoft’s Zero Trust security principles.
▪Security features include BitLocker encryption and Microsoft Defender protection, with support for Entra ID and Intune for organizational management.

Microsoft AI stack integration

▪The AI Toolkit for VS Code is included to bring model conversion, fine-tuning, and evaluation into the editor.
▪The device integrates with Windows ML with TensorRT, Windows Copilot Runtime, and Microsoft Foundry to connect local prototyping with production deployment.