NVIDIA DGX Spark & GB10 rack mounts: every option compared (2026)

The NVIDIA DGX Spark is built for a desk. It's a small, heavy box with every port on the back. Once you own two, or you want one next to the switch and NAS it talks to, the desk stops making sense. The GB10 superchip also ships in seven other branded machines from ASUS, Dell, HP, Lenovo, MSI, Gigabyte and Acer. This guide covers every practical way to rack them, what each option costs, and the dimensions you need to check before you buy anything.

Full disclosure: we print GB10 mounts in San Diego, so we have a horse in this race. We've kept the comparison to published specs and prices, and we'll tell you when a steel kit is the better buy.

The short answer

• Every GB10 box is 50.5–54.5 mm tall. One rack unit (1U) is 44.45 mm, so 2U is the smallest height that actually fits.
• In a 19-inch rack you can fit one unit or two side by side in 2U. In a 10-inch rack you fit one.
• 3D-printed mounts cost less and ship faster. Steel kits weigh more and cost three to four times as much, and some come from Europe with long lead times or import duties.
• If you plan to cluster two units over ConnectX-7, buy a dual mount with a real gap between the boxes, not two singles butted together.

Fit across all 8 GB10 models: the dimensions

These are the published external sizes (width × depth × height). The footprints are nearly identical; the height is what changes. That matters because a mount sized only for the DGX Spark can be too tight for the taller boxes.

• NVIDIA DGX Spark: 150 × 150 × 50.5 mm
• ASUS Ascent GX10: 150 × 150 × 51 mm
• Dell Pro Max with GB10: 150 × 150 × 51 mm at the peak, 45.5 mm at the front and rear edges
• HP ZGX Nano G1n AI Station: 150 × 150 × 51–54.5 mm, the tallest of the group
• Lenovo ThinkStation PGX: 150 × 150 × 50.5 mm
• MSI EdgeXpert MS-C931: 151 × 151 × 52 mm, the widest footprint
• Gigabyte AI TOP ATOM: 150 × 150 × 50.5 mm
• Acer Veriton GN100: 150 × 150 × 50.5 mm

Our mounts use one universal pocket of 153 × 153 × 57 mm. That clears the widest box (MSI, 151 mm) and the tallest (HP, up to 54.5 mm) with room to spare, so you don't have to pick a brand-specific version. You can also mix brands in the same dual mount, for example a DGX Spark next to an ASUS GX10.

When you shop elsewhere, read the fit list carefully. Some mounts on the market are designed around the DGX Spark only, and their listings say they don't fit the GX10 or that other GB10 models haven't been tested. A 1 mm difference in height is enough to turn a snug fit into one that doesn't go in.

1U vs 2U: why 1U doesn't work

A rack unit is 44.45 mm (1.75 in). The shortest GB10 box is 50.5 mm tall, so it's already 6 mm taller than a 1U opening before you add a floor for it to sit on. Any mount sold as 1U for these machines either lets the box stick up into the next rack space or isn't really 1U.

You'll also see 1.33U and 1.5U steel kits. They work, but they leave an odd fraction of a rack unit that standard blank panels can't fill, so you end up with a gap or a custom filler. A 2U mount has an 88.1 mm faceplate, which leaves room for a vented floor under the box and some air above it. It also lines up with every standard 1U and 2U blank.

3D-printed vs steel kits

Steel kits

Powder-coated steel kits are the traditional choice. They're rigid, they won't soften in a hot rack, and some include removable front panels or keystone inserts. The trade-off is price and availability: at the time of writing, dual-GB10 steel kits we've seen run from €169 to €381. Some ship from Europe, which can mean 7–8 week lead times or a US import tariff on top.

3D-printed mounts

A printed mount costs a fraction of that and can be made to order in days. The usual worry is heat, and it's a fair one. PETG, our default, is fine in a normal network closet. For a hot rack, or a mount that sits in another device's exhaust, choose ASA, which tolerates higher temperatures. Our materials guide compares them.

Our GB10 mounts are 2U, have an open front window and a diamond-vented floor, and the unit is held down with zip ties through slots in the floor. Current prices:

• 19" 2U single GB10 mount: $66.99
• 19" 2U dual GB10 mount: $104.99
• 10" 2U GB10 mount: $58.99

All of them are printed in San Diego and ship in 2–3 business days. Every catalog part comes with a fit guarantee: if it doesn't fit the listed device, send us a photo within 30 days and we'll reprint it free (terms).

Single vs dual

Buy the single if you have one box and might never buy a second. In a 19-inch rack it leaves a wide empty space on one side, which is useful for routing cables or adding a small switch on a shelf.

Buy the dual if you have two units, or will soon. NVIDIA supports linking two GB10 systems over their built-in ConnectX-7 ports, and most people who buy a second Spark do it to run larger models across both. Our dual mount holds both boxes in one 2U space with a 40 mm vented gap between them. That gap does two jobs: it stops one unit from heating the other through the side wall, and it gives the QSFP cable room to bend between the rear ports. If you need a wider gap (up to 120 mm), three units, or a 10-inch dual, our rack-mount generator will design it and give you a price in about 30 seconds. Pick "Any GB10, universal fit".

Airflow and the cluster cable

GB10 boxes run warm under load, and the power bricks are external. A few rules that hold whatever mount you choose:

• Keep the front and rear of the box open. Don't use a mount with a solid faceplate over the front grille.
• Don't stack two units directly on top of each other in adjacent rack units without a vented panel or an empty unit between them.
• Keep the bricks out of the exhaust path. A shelf at the back of the rack or a tie-down point on the rail works well.
• Use the shortest QSFP direct-attach cable that reaches comfortably. Long, stiff cables put sideways load on the rear ports.
• If the rack is warm, put a vented 1U or 2U blank above the mount instead of a solid one.

We go deeper into cable routing and spacing in “How to rack a two-node GB10 / DGX Spark cluster”.

19-inch or 10-inch?

If you already have a full-size rack, use 19 inches: it's the only width where two GB10 units fit side by side. If your lab lives on a desk or shelf in a 10-inch mini rack, the 10" GB10 mount holds one unit in 2U. For two units in a 10-inch rack, stack two single mounts with a vented blank between them. Our “10-inch rack starter guide” covers the hardware.

FAQ

Will the DGX Spark mount fit my ASUS GX10 or HP ZGX Nano?

Ours does. All three of our GB10 mounts share one 153 × 153 × 57 mm pocket that clears every published GB10 size, including the taller HP and the wider MSI. With other mounts, check the fit list for your exact model.

Can I mix two different GB10 brands in the dual mount?

Yes. The pocket is universal, so a DGX Spark and a Dell Pro Max with GB10 can sit side by side. Clustering across brands is a software question, not a mount question.

Is PETG safe for a GB10 that runs hot?

For a normal room or closet, yes. If the rack runs hot or the mount sits in exhaust air, order it in ASA. The quote page shows which materials are in stock.