Used NVIDIA H100 GPUs

Alta buys & sells new, used, and refurbished NVIDIA H100 GPUs for AI, LLM, and advanced computing environments. We're looking to buy everything from single GPUs to 8 unit backplanes and fully loaded racks and data centers of servers & GPUs.

We are R2v3 certified and ready to handle your custom decommissioning and data sanitization jobs and we pay top dollar for excess HPC and used NVIDIA GPU installs.

The NVIDIA H100 Tensor Core GPU is a groundbreaking solution for high-performance elastic data centers, powering AI, data analytics, and HPC applications. Operating on the NVIDIA Hopper™ architecture, the dual-slot PCIe Gen5 card features a passive heat sink and boasts a PCIe card memory bandwidth exceeding 2,000 GB/s.

Please get in touch if you need a single H100 GPU, a fully loaded server or rack, or have excess GPUs to offload to a reuse-focused recycler.

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“We trust Alta with refurbished equipment. The longevity of the product is just the same as if I had bought it from the distributor.”

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NVIDIA H100 GPUs Specifications:

H100 SXM:

FP64: 34 teraFLOPS

FP64 Tensor Core: 67 teraFLOPS

FP32: 67 teraFLOPS

TF32 Tensor Core: 989 teraFLOPS

BFLOAT16 Tensor Core: 1,979 teraFLOPS

FP16 Tensor Core: 1,979 teraFLOPS

FP8 Tensor Core: 3,958 teraFLOPS

INT8 Tensor Core: 3,958 TOPS

GPU Memory: 80GB

H100 PCIe

FP64: 26 teraFLOPS

FP64 Tensor Core: 51 teraFLOPS

FP32: 51 teraFLOPS

TF32 Tensor Core: 756 teraFLOPS

BFLOAT16 Tensor Core: 1,513 teraFLOPS

FP16 Tensor Core: 1,513 teraFLOPS

FP8 Tensor Core: 3,026 teraFLOPS

INT8 Tensor Core: 3,958 TOPS

GPU Memory: 80GB

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NVIDIA H100 GPUs Information:

The NVIDIA H100 is an integral part of the NVIDIA data center platform, designed for AI, HPC, and data analytics. Accelerating over 3,000 applications, it delivers dramatic performance gains and cost-saving opportunities from data center to edge. The NVIDIA H100 Tensor Core GPU offers exceptional performance, scalability, and security, supporting up to 256 GPUs connected via NVIDIA® NVLink® Switch System to handle exascale workloads.

With its dedicated Transformer Engine, it powers trillion-parameter language models, leveraging NVIDIA Hopper™ architecture to achieve industry-leading conversational AI, enhancing large language models by 30X over the previous generation.

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About Our Used NVIDIA H100 GPUs

Unleash AI and HPC performance—without overspending. Alta Technologies offers used NVIDIA H100 GPUs, professionally refurbished and ready to ship from our in-stock inventory. Backed by 30+ years of IT hardware expertise, each unit undergoes our multi-point inspection process to ensure enterprise-grade reliability and performance.

From large language model training to real-time inference and data analytics, these GPUs are built to handle the most demanding workloads. Explore our NVIDIA H100 for sale and discover the smarter, budget-friendly path to high-performance computing.

Why Choose Used NVIDIA H100 GPUs?

The NVIDIA H100 Tensor Core GPU, built on the Hopper™ architecture, is a leap forward in accelerating AI, data analytics, and HPC applications. These GPUs deliver transformational gains across FP64, FP32, FP16, and Tensor Core operations—capable of powering the most demanding data center and enterprise compute environments.

Choosing used NVIDIA H100 GPUs from Alta Technologies means unlocking elite performance without the premium price tag. Our GPUs are pulled from supported, climate-controlled enterprise environments and undergo Alta’s multi-point inspection process, ensuring peak performance and compatibility. From AI model training to LLM inference and HPC workloads, you can scale with confidence—without overspending.

Our Inventory of Used NVIDIA H100 GPUs

Alta Technologies offers both PCIe and SXM form factors to match your infrastructure needs. Whether you're upgrading a workstation or scaling a supercomputing cluster, we frequently have H100 for sale options ready to ship.

NVIDIA H100 PCIe GPUs

Dual-slot PCIe Gen5 design
80GB memory with >2,000 GB/s bandwidth
FP64: 26 TFLOPS, Tensor Core FP16: 1,513 TFLOPS
Passive heatsink, ideal for standard rackmount deployments

Professionally refurbished by Alta Technologies and tested to enterprise standards, these PCIe units are perfect for mainstream AI and analytics applications.

NVIDIA H100 SXM GPUs

80GB memory with ultra-high Tensor Core throughput
FP64: 34 TFLOPS, FP8 Tensor Core: 3,958 TFLOPS
Optimized for dense multi-GPU configurations using NVIDIA NVLink

SXM units are ideal for large-scale training and exascale performance requirements. Our team can help you supply these GPUs to integrate into high-density, water- or air-cooled infrastructure.

Factors to Consider When Buying a Used NVIDIA H100 GPU

SXM vs PCIe – Which One is Right for You?

NVIDIA H100 for sale includes two form factors: PCIe and SXM. PCIe is more accessible and compatible with standard servers. SXM offers higher throughput via NVLink, but requires specialized server architecture. Choose PCIe for flexible installs or SXM for max density and performance.

Compute & Tensor Core Performance

Both SXM and PCIe variants deliver massive computational output. SXM leads in raw performance due to thermal and power efficiencies. Match your GPU to your workload—whether you're running inferencing at the edge or training LLMs in a rack-scale AI pod.

Memory Requirements for AI & HPC Applications

Each used NVIDIA H100 GPU features 80GB of high-bandwidth memory, making them ideal for large model datasets and real-time analytics. Consider total memory requirements if you’re deploying multiple GPUs in parallel.

Power & Cooling Considerations

SXM modules typically require more sophisticated power and cooling infrastructure. PCIe cards are passively cooled and more easily deployed in traditional data centers.

How to Choose the Best Used NVIDIA H100 GPU for Your Needs

Selecting the right H100 depends on your compute goals, thermal budget, and compatibility needs. Are you building a new AI rack or retrofitting a legacy server? Alta’s engineers will guide you through compatibility and configuration options.

We offer tested and compatible upgrades and custom-configured systems ready for high-throughput AI, LLM, and HPC workflows—all professionally refurbished to enterprise standards.

Why Buy Used NVIDIA H100 GPUs from Alta Technologies?

With over three decades of experience serving IT professionals worldwide, Alta Technologies is your trusted partner for high-performance refurbished IT hardware. Here’s why businesses choose us:

In-stock inventory of NVIDIA H100 for sale, ready to ship.
Professionally refurbished by Alta Technologies
Backed by an Alta warranty
Custom configuration and integration options
Environmentally responsible: Alta is R2v3 certified
Significant cost savings—save off new
Trusted by IT managers, resellers, and data center professionals worldwide

We buy, sell, and support infrastructure across industries. Whether you need one GPU or a full rack deployment, Alta has the expertise and stock to make it happen fast.