80 GB HBM3
NVIDIA H100
SXM5 and PCIe. NVLink up to 900 GB/s on SXM. LLM training and large-scale inference.
Used GPU hardware · Based in Vienna
Used GPU servers, nodes, and racks.
Sandman Ventures GmbH buys and resells used NVIDIA and AMD data center GPUs, in servers, nodes, and full racks. Each offer includes detailed analytics and a written report. Shipping covers the DACH region and international destinations.
- GPUsH100, A100, V100, L40S, MI300X
- Systems8-GPU SXM, PCIe servers, racks
- Every offerDetailed analytics and report
- ShipsDACH and international
GPU families
The GPUs buyers ask for most.
Training, inference, rendering, and simulation need different memory and interconnect. Tell us the workload and we point you to the family that fits.
40 or 80 GB HBM2e
NVIDIA A100
SXM4 and PCIe. NVLink up to 600 GB/s on SXM. Training, fine-tuning, inference, and HPC.
16 or 32 GB HBM2
NVIDIA V100
SXM2 and PCIe. NVLink up to 300 GB/s on SXM. Research, fine-tuning, and budget inference.
48 GB GDDR6
NVIDIA L40S
PCIe Gen4. Inference, generative AI, and rendering in standard rackmount servers.
48 GB GDDR6
NVIDIA RTX A6000
PCIe Gen4. Rendering, simulation, and virtual workstations. The A40 shares the same memory.
192 GB HBM3
AMD Instinct MI300X
OAM with Infinity Fabric. Large-memory LLM inference on ROCm. The MI250X has 128 GB.
What you can buy
Servers, nodes, and whole racks.
Tell us the GPU model, the quantity, and the form you need. We reply with hardware we can offer, or say so if we cannot match the request.
GPU servers
Complete used servers, from 8-GPU SXM systems for training to PCIe servers for inference and rendering. Each GPU is tested under load and logged.
GPU nodes
Single compute nodes to extend an existing rack or cluster. We check fit against your fabric, power, and software stack in the inquiry.
Racks
Whole racks of used GPU hardware as one lot and one shipment, for a new data center or a large-scale deployment.
Why buyers inquire
Test results, documentation, and shipping you can plan around.
Used hardware is a risk only when nobody can show what was checked. Every offer comes with the evidence.
Tested under load
Each server, node, or rack is tested under load and inspected. The results come as detailed analytics, and serial numbers are recorded.
Written report
The report lists the checks that were run, the results per GPU, and the limits of the inspection. It accompanies the offer, so you review it before you decide.
Shipping arranged
Shipments go to Austria, the DACH region, and international destinations. Route and timing are confirmed in the offer. You can use your own carrier or forwarder if you prefer.
Both sides of the trade
Buying or selling GPU hardware.
Sandman Ventures buys used GPU hardware and resells it. Either direction starts with an email.
Buy used GPU hardware
Tell us what you need and where it has to go. We reply with hardware we can offer, together with its test report.
- GPU model and quantity
- Servers, nodes, or whole racks
- Workload, if you want advice on the fit
- Delivery location and timeline
Sell your GPU hardware
Replacing or retiring GPU servers, nodes, or racks? Describe what you have. We review the details and reply by email with an offer, or tell you if we cannot take it.
- GPU model and count, and the server model
- Age, condition, and known faults
- Serial numbers and photos, if you have them
- Current location and timeline
Quality reports
GPUs are tested under load before an offer.
The quality report gives detailed analytics for every GPU, together with identification, condition, and the limits of the inspection.
- AnalyticsDetailed per-GPU results from testing under load.
- IdentificationManufacturer, model, GPU type, count, and serials.
- LimitsChecks that were not completed, and why.
| GPU | gpu-burn | NVLink | ECC corr. | ECC uncorr. |
|---|---|---|---|---|
| GPU 0 | PASS | all up | 0 | 0 |
| GPU 1 | PASS | all up | 0 | 0 |
| GPU 2 | PASS | all up | 0 | 0 |
| GPU 3 | PASS | all up | 0 | 0 |
| GPU 4 | PASS | all up | 0 | 0 |
| GPU 5 | PASS | all up | 2 | 0 |
| GPU 6 | PASS | all up | 0 | 0 |
| GPU 7 | PASS | all up | 0 | 0 |
Process
From inquiry to shipment.
Four steps. Start by sending us an email.
Inquire
Send the GPU model, quantity, delivery location, and timeline, and say whether you need servers, nodes, or racks.
Match
We reply with hardware we can offer against that request. If we cannot match it, we say so.
Review
You get the test report for the units in the offer, with results per GPU, before you commit.
Ship
After the offer is accepted, we arrange national or international shipping, or hand over to your own carrier.
Questions
What buyers and sellers ask first.
Something missing? Email hello@sndmn.ai and we answer directly.
Do you publish prices or a stock list?
No. Availability changes with every purchase, so there is no public stock list and no price list. Send the GPU model, quantity, and delivery location. We reply with what we can offer and the price.
What exactly is tested?
Each unit is tested under load and inspected. You get detailed analytics and a written report with the results, identification, serial numbers, condition, and the limits of the inspection. The Quality page lists the checks.
Can I see a sample report?
The Quality page shows the report structure and example output. The report for the specific units in an offer is part of the conversation before you decide.
What happens if a GPU shows errors?
Results are recorded as found. The offer states what the report shows for each unit, including any problems, so you decide with the full picture.
Is there a warranty or a return right?
The quality report documents condition at inspection. It is not an OEM warranty. Any warranty or return terms are written into the offer before you accept it.
Where do you ship?
Austria, Germany, Switzerland, and international destinations. Route and timing are confirmed in the offer. If you prefer your own carrier or forwarder, say so in the inquiry. See Shipping for details.
Do you buy used GPU hardware?
Yes. We buy used GPU servers, nodes, and racks. Send the model, count, condition, and location. We reply by email with an offer, or tell you if we cannot take the hardware.
Which GPUs and servers do you handle?
The Hardware page lists the GPU families and system types with memory and interconnect. If you need a model that is not listed, ask.
Inquire
Tell us the hardware, the quantity, and where it needs to go.
There is no public stock list and no checkout on this site. An inquiry starts by email, and we reply with what we can offer.