Supermicro ARS-511GD-NB-LCC: DGX Station GB300 Inside

By Maximilian Batz | 2026-08-29

The Supermicro Super AI Station ARS-511GD-NB-LCC is Supermicro’s implementation of the NVIDIA DGX Station GB300 platform, in a 5U tower. We photographed one with the side panel removed at ISC 2026, including the liquid-cooling loop that most published material only shows as a rendering. Below are verified specifications, what the interior looks like, and how it differs from Gigabyte’s version of the same NVIDIA reference design.

Specifications below are transcribed from Supermicro’s own booth placard and cross-checked against NVIDIA’s published DGX Station specification.

Supermicro ARS-511GD-NB-LCC specifications

ComponentSpecification
Form factor5U tower AI development platform
SuperchipNVIDIA GB300 Grace Blackwell Ultra Desktop Superchip
GPUNVIDIA Blackwell Ultra B300
CPUNVIDIA Grace, 72-core Arm Neoverse V2
Coherent memoryUp to 748 GB total
CPU memory4 × 128 GB SOCAMM LPDDR5X (496 GB total)
GPU memory252 GB HBM3e
CPU↔GPU linkNVIDIA NVLink-C2C, up to 900 GB/s
NetworkingDual 400 GbE QSFP via NVIDIA ConnectX-8 SuperNIC
Storage4 × M.2 PCIe 5.0 ×4 NVMe 2280 slots
Power supply1600 W, Titanium level
CoolingServiceable closed-loop liquid cooling
Transcribed from Supermicro’s specification placard, ISC 2026.

The cooling loop is the interesting part

Supermicro describes the cooling as serviceable closed-loop, and the photographs show what that means in practice. Two large copper cold plates sit directly over the superchip packages, fed by braided hoses through quick-disconnect couplings with red locking collars — the loop can be broken and rejoined without draining the whole system.

More telling is the rear panel. It carries externally accessible ports labelled LIQUID LEVEL and DRAIN. A closed-loop cooler you can top up and drain from the outside is a different maintenance proposition from a sealed unit: coolant loss over a multi-year deployment stops being a reason to return the machine.

Air handling is conventional and solid — stacked Sanyo Denki San Ace 80 and San Ace 92 fans pulling through the radiator above the cold plates. These are industrial-grade fans rather than consumer parts, which matters for a machine expected to run continuously.

Supermicro ARS-511GD-NB-LCC image gallery

Open tower workstation chassis on display showing internal cooling and cabling at a trade show booth — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
A Supermicro tower workstation with side panel removed, displayed on a trade show booth table, revealing internal liquid-cooling plumbing, heatsinks and cable routing alongside a “Built to Accelerate” placard.
Open tower workstation chassis on display with internal cooling and GPU components visible — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
A tower-style workstation chassis with its side panel removed, displaying internal liquid cooling tubing, heatsinks, and GPU modules at a trade show booth. A screen behind shows a multi-agent AI infrastructure software demo, and a small placard reading “Super AI Station” sits atop the unit.
Open workstation chassis showing copper liquid cooling cold plates with hoses attached to processors — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Interior view of a workstation chassis with dual copper liquid-cooling cold plates connected via braided hoses, mounted over the Grace CPU and Blackwell Ultra GPU packages, alongside the PCIe expansion slots.
Workstation motherboard with liquid cooling cold plate and copper heatsink assembly — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Close-up of a workstation motherboard fitted with a liquid-cooling cold plate and copper heat sink, connected via braided coolant hoses, with a Supermicro instructional label attached to the mounting bracket.
Open workstation chassis showing liquid cooling cold plates with copper tubing on motherboard — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Interior view of a workstation chassis with liquid cooling cold plates and copper tubing covering the GB300 superchip packages, alongside the PCIe expansion slots.
Open workstation chassis showing copper liquid cooling cold plates and tubing on motherboard — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Interior view of a workstation chassis with dual copper cold plates connected by black flexible tubing, part of a liquid cooling loop mounted directly on the motherboard’s processor sockets.
Interior view of an open workstation chassis showing cabling, liquid cooling components, and a spec placard listing memory and… — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Interior of an open workstation chassis at a trade show booth, revealing internal cabling and a serviceable closed-loop liquid cooling module, with a placard above describing memory, GPU, and networking specifications.
Interior view of a workstation chassis showing dual cooling fans and liquid cooling tubing — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Close-up of a workstation’s internal cooling assembly, showing two SanAce92 fans by Sanyo Denki alongside liquid cooling hoses with a quick-disconnect fitting.
Rear view of a tower workstation showing expansion slots, USB ports and power connector — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Rear panel of a tower-style workstation chassis, showing multiple PCIe expansion slot covers, rear USB and audio I/O, a power switch, and IEC power inlet, displayed on a trade show table.
Rear panel of a tower workstation chassis showing liquid cooling drain valves and fill port — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Rear view of a tower workstation chassis featuring liquid-cooling drain and fill valves labeled “LIQUID LEVEL” and “DRAIN,” alongside standard rear I/O including USB ports and a power inlet.
Rear I/O panel of the workstation showing dual LAN, USB 3.0, audio jacks, and display connectors — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Close-up of a chassis rear I/O panel featuring dual gigabit Ethernet ports, multiple USB 3.0 ports, audio jacks, mini DisplayPort connectors, and additional networking or SFP ports at the bottom.
Open workstation chassis showing stacked cooling fans and thick liquid cooling hoses connected to copper cold plates — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Interior view of a workstation chassis with San Ace 80 cooling fans stacked above liquid-cooled copper cold plates, connected via thick black coolant hoses to components on the adjacent board.
Rear view of a tower workstation chassis with large heatsink fins on top and expansion slots and connectors on back — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Rear view of a tower workstation chassis showing an extensive finned heatsink array along the top, multiple PCIe expansion slot covers, USB and I/O ports, and liquid cooling fittings, displayed on a trade show table.
Black Supermicro tower chassis with mesh front panel on display at a trade show booth — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
A Supermicro tower-style workstation chassis with a perforated mesh front panel, front USB ports, and status LEDs, displayed at a trade show booth.
Close-up of the workstation's front panel with power button, reset button, USB 3.0 ports, and audio jacks — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Front I/O panel of a tower chassis showing status LEDs, power and reset buttons, headphone and microphone jacks, and two USB 3.0 (blue) ports.
Supermicro tower workstation with open front door showing ports and mesh panel at trade show — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
A Supermicro tower workstation on display at a trade show booth, with its front door open to reveal ventilation mesh and an internal drive bay; front I/O panel with USB, audio jacks and power button is visible on the main chassis, alongside a placard reading “Built to Accelerate: End-to-End Solutions for AI & HPC”.
Close-up of a honeycomb mesh ventilation panel on a computer chassis — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Close-up view of the perforated honeycomb mesh front panel of a desktop or tower chassis, with front I/O ports including USB and audio jacks visible at the right edge.
Close-up of a workstation rear I/O panel with dual Ethernet ports, USB ports, audio jacks and mini DisplayPort output — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Rear I/O panel of the workstation chassis showing two RJ45 network ports each paired with USB Type-A ports, three audio jacks, a mini DisplayPort output, and a high-density connector, set into a perforated metal case.
Supermicro Super AI Station ARS-511GD-NB-LCC spec placard at trade show
Trade show spec placard for the Supermicro Super AI Station ARS-511GD-NB-LCC, a 5U tower AI development platform featuring the NVIDIA GB300 Grace Blackwell Ultra Desktop Superchip with up to 748GB of coherent memory.
Close-up of quick-disconnect liquid cooling hose fittings inside a workstation chassis with a cooling fan — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Close-up view of quick-disconnect liquid cooling fittings with red locking collars, connected to two black coolant hoses near an internal chassis fan.
Close-up of red-collared quick-disconnect liquid cooling fittings inside a workstation chassis — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Interior view of a workstation chassis showing a pair of quick-disconnect liquid cooling couplings with red collars, connected to black rubber hoses, alongside a warning label and chassis frame.
Internal workstation chassis view showing ribbon and power cables routed to a fan module — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Interior view of a workstation chassis showing internal cabling, including a ribbon cable and bundled wiring secured with a cable tie, routed near a fan module with a moving-blade hazard warning label.
Close-up of a workstation motherboard edge showing capacitors and power connector headers — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Close-up view of a motherboard edge featuring multiple electrolytic capacitors, black multi-pin power connectors, and a partial copper heatsink, mounted above a light-colored chassis panel.
Top-down view of a workstation motherboard showing PCIe expansion slots, M.2 connectors, and capacitors — Supermicro ARS-511GD-NB-LCC NVIDIA DGX Station GB300
Interior view of a workstation motherboard, showing multiple PCIe slots, M.2 slot connectors, capacitor banks, and a heatsink partially visible at bottom right.

How it compares to the Gigabyte GB300 station

Both are the same NVIDIA GB300 platform underneath, so superchip, memory capacity and NVLink-C2C bandwidth are identical. The vendors differ in what surrounds it.

Supermicro ARS-511GD-NB-LCCGigabyte W775-V10-L01
Form factor5U towerDeskside tower
PSU efficiencyTitanium80 PLUS Platinum
Liquid coolingClosed-loop, external drain and fillClosed-loop
M.2 storage4 × Gen5 ×4 (2280)2 × Gen6 ×4 (via ConnectX-8) + 2 × Gen5 ×4
PCIe expansion1 × Gen5 ×16, 2 × Gen5 ×81 × Gen5 ×16, 2 × Gen5 ×8
Extra LAN1x RJ45 10GbE LAN port10 Gb/s Marvell AQC113
Notable detailQuick-disconnect coolant couplings8-point leak detection board

The practical summary: Supermicro optimises for operational life — Titanium-grade power efficiency and a coolant loop you can maintain in place. Gigabyte optimises for expansion and storage throughput, with confirmed PCIe Gen6 ×4 on two M.2 slots. Our Gigabyte W775-V10-L01 teardown covers that machine in the same detail.

If the machine will run continuously for years in a lab or office, the Supermicro’s serviceable loop and the Titanium PSU are the arguments that matter.

Who this machine is for

The defining number is 748 GB of coherent memory across CPU and GPU. Models that would otherwise have to be split across several discrete GPUs fit in one address space, which removes a large amount of engineering work before you get to any actual research. That suits fine-tuning large open-weight models, long-context inference, and simulation work with datasets that simply do not fit in a conventional accelerator.

The second driver is cloud independence — data that is not permitted to leave the premises, or utilisation high enough that renting no longer adds up. Our comparison against 4× and 8× RTX PRO 6000 servers works through when a single GB300 station beats a multi-GPU box, and the GB300 specifications and LLM benchmarks post has the performance detail.

Buying one

pi3g supplies the NVIDIA DGX Station GB300 in Germany and across Europe, including the Supermicro Super AI Station ARS-511GD-NB-LCC. We are happy to talk through which vendor implementation suits your environment before you commit.

Request a quote

All photographs on this page were taken by pi3g at ISC 2026. Specifications are transcribed from the manufacturer’s booth placard and NVIDIA’s published specification; final shipping configurations may differ.

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