With great pride, we introduce the ProX XSM-GMA3onPCCommand Flight Case for grandMA3 onPC Command Wing / XT by Santosom, this is the case that serious lighting professionals choose when compromise is not an option. If you run MA3 onPC systems on productions that matter, whether that is a world tour, a high-profile festival, a corporate installation, or a government AV contract, this case was built with you in mind. Santosom has spent decades earning a reputation as one of the most respected case manufacturers in the world, and every detail of this case reflects that standard. This is not a generic transport box. It is a precision-engineered command station built to perform at the highest level of live production.  The front of this particular model has a fine leather trim, another example of their meticulous attention to detail.

Santosom Build Quality sets this case apart from anything in its class. From the moment you see it, the difference is clear. Every panel, every edge, every fastener, and every surface finish has been executed with the kind of care that only comes from a manufacturer that refuses to cut corners. Santosom constructs this case from laminated birch plywood throughout, reinforced with precision-fitted aluminum edge profiles at every corner and edge. The result is a structure that feels solid and purposeful in a way that generic cases simply do not. The hardware, the fit, the finish — everything speaks to a level of craftsmanship that justifies its place in a top-tier production rig. When you open this case, you immediately understand that it was made by people who take their work seriously.

LED Lighting System is one of those features that sounds simple until you are working in a dark backstage corridor at 2am trying to find your keyboard before a cue. Santosom integrates dimmable LED lighting directly into both the main equipment zone and the drawer areas, so every part of your workspace is properly illuminated regardless of the environment around you. The dimming control means you can dial in exactly the amount of light you need without blowing your night vision or drawing attention in a blacked-out venue. It is a thoughtful detail that makes a real difference in the field, and it is executed cleanly as part of the case design rather than added as an afterthought.

Side Access Shelf on the right side of the case gives you a convenient, dedicated surface right where you need it most. Whether you use it for a wireless mouse, a remote, a tablet, a phone, or any other accessory you reach for constantly during a show, it keeps that item within arm's reach without cluttering your main control surface. On a long show day, having that space organized and accessible is not a luxury. It is a workflow detail that adds up over time and reflects the kind of operational thinking Santosom puts into every case they build.

Interior Construction is where Santosom's attention to detail truly shows. The front section of the case interior is finished with a premium leather-style lining that gives the workspace a polished, high-end feel while also providing a soft, protective surface for your gear. It is the kind of interior finishing you expect from a top-tier case, and it communicates quality to anyone who opens it. The foam used throughout the interior is dense, well-cut, and fitted precisely to cradle your equipment securely. It absorbs vibration and impact effectively, and it holds its shape over time rather than compressing and losing its protective properties the way lower-grade foam does. The full interior lining works together as a system, protecting every surface of your MA3 onPC setup from the moment the lid closes to the moment it opens again at the next venue.

Two Built-in Drawers provide organized, accessible storage for your keyboard, mouse, and accessories directly within the case footprint. Nothing needs to be packed separately or carried in a secondary bag. The sliding mouse support shelf gives you a proper working surface during operation so your workflow is set up and ready the moment the case is open. Everything has a place, and everything stays in that place from load-in to load-out.

Adjustable Rear Angles give you a level of flexibility that fixed-position cases simply cannot offer. The rear of the ProX XSM-GMA3onPCCommand can be configured at different angles to suit your specific working environment, viewing preference, or venue setup. Whether you need to optimize the monitor position for a particular sightline, adapt to an awkward booth layout, or simply set the case up the way that works best for your workflow, that adjustability is built in. It is a detail that touring professionals and installation teams both appreciate, because no two shows are set up exactly the same way, and having a case that adapts to the room rather than forcing you to adapt to the case is exactly the kind of practical thinking that separates a Santosom build from everything else on the market.

Rear Compartment and Connectivity round out the operational picture. The rear of the case features a dedicated compartment for your CPU unit, wiring looms, and electrical connections, measuring 26.77"W x 9.84"D x 6.69"H, with an adjustable configuration that allows you to set up the rear panel to suit your specific cabling and equipment layout. A built-in USB 3.0 connector is integrated directly at the case level, keeping your interface connections clean and eliminating the need for loose adapters. Two configuration modes are supported: Command Wing / XT with removable drawer, or Command Wing / XT with Port Node Box, giving you the flexibility to adapt the case to your exact production setup.

Monitor Support accommodates 22" to 24" touch monitors with a maximum internal clearance of 21.26"W x 2.17"D x 12.60"H, keeping your display securely positioned and ready for immediate deployment at any venue.

TAA Compliance makes the ProX XSM-GMA3onPCCommand fully eligible for government, federal, and military AV procurement contracts. Manufactured by Santosom in Portugal, a designated country under the Trade Agreements Act, this case meets the requirements for institutional purchasing without any additional qualification steps.

At 13.50"H x 31.25"W x 31.00"L and 112.60 lbs, this case ships LTL and is sized for the complete MA3 onPC Command Wing control setup in a single self-contained unit. Monitors and computer systems are not included.

Made by Santosom in Portugal. Distributed in North America by ProX Live Performance Gear.

Designed by Professionals. Built for Performers. Backed by 40 Years of Excellence.

ProX products are designed by a team of seasoned industry professionals who know firsthand what it means when power fails mid-show. Since 1984, ProX has built its reputation on one principle: every product must perform as hard as the professionals who depend on it. We listen to our customers, and their real-world feedback directly shapes the products we bring to market. The ProX XSM-GMA3onPCCommand is a direct result of that collaboration. When you choose ProX, you are investing in four decades of hands-on expertise and a brand that has never stopped raising the standard for live performance gear.

  • Purpose-built lighting controller case for grandMA3 onPC Command Wing and Command Wing XT configurations
  • Two configuration modes: Command Wing / XT with removable drawer, or Command Wing / XT with Port Node Box
  • Laminated birch plywood construction reinforced with aluminum edge profiles throughout
  • Monitor support for 22" to 24" touch monitors (max internal clearance: 21.26"W x 2.17"D x 12.60"H)
  • Dimmable LED lighting for both the main equipment zone and drawer areas
  • Two built-in drawers for keyboard, mouse, and accessories
  • Sliding mouse support shelf for a proper working surface inside the drawer
  • Rear compartment for CPU units, wiring, and electrical connections (26.77"W x 9.84"D x 6.69"H)
  • Built-in USB 3.0 connector for direct interface connectivity
  • Interior lining throughout for vibration and impact protection
  • TAA Compliant for international and government-sector use
  • Suggested shipping method: LTL
  • Made by Santosom in Portugal. Distributed in North America by ProX Live Performance Gear.

All registered trademarks and trade names are properties of their respective owners and are used only for the clarification of the compatibility of our products with the products of the different manufacturers.

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