NVIDIA H200.
Built around bandwidth.
Complete H200 systems for memory-intensive AI and HPC. Specify HGX SXM with NVSwitch or a PCIe NVL platform with supported bridge groups.
HGX reference: Supermicro SYS-821GE-TNHR
SYS-821GE-TNHR reference chassis supports HGX H100/H200. The final quotation specifies H200 and the installed bill of materials.
Manufacturer reference imageThe full system, defined.
The HGX configuration references Supermicro’s SYS-821GE-TNHR, an 8U dual-Xeon system supporting eight H200 SXM GPUs. H200 NVL is a separate PCIe option; the builder uses the Supermicro SYS-422GL-NR 4U PCIe platform with a different interconnect design.
| HGX reference platform | Supermicro SYS-821GE-TNHR, 8U, supporting HGX H100 / H200. The NexTec proposal specifies H200 SXM. |
|---|---|
| GPU baseboard | 8× H200 SXM with 141 GB HBM3e each; 1,128 GB aggregate. Up to 4.8 TB/s local memory bandwidth and 900 GB/s NVLink per GPU. |
| GPU fabric | HGX eight-GPU designs use NVLink and four NVSwitch devices. GPU fabric and external scale-out network are separate parts of the architecture. |
| Host compute | Dual 4th / 5th Gen Intel Xeon Scalable. CPU models, core count, TDP, and firmware are selected against the supported OEM list. |
| ECC memory | 32 DDR5 DIMM slots; up to 8 TB platform capacity. Actual speed depends on CPU, DIMM type and DIMMs per channel. |
| Boot / storage | 2× M.2 NVMe for boot. Up to 16 hot-swap 2.5-inch NVMe bays: 12 default, 4 optional; SATA configuration also available. |
| Fabric expansion | Eight PCIe 5.0 x16 low-profile slots, plus two FHHL slots and two optional FHHL slots. Select NIC count, GPU affinity, fabric, optics, and cabling as a complete design. |
| Power / facility | H200 SXM up to 700 W each: 5.6 kW across eight GPUs before the host and other components. Complete feed, PSU, cooling and rack requirements are confirmed for the ordered build. |
| NVL alternative | H200 NVL: 141 GB HBM3e, up to 600 W, PCIe 5.0 x16. Supported 2- or 4-GPU NVLink bridge groups; it is not the HGX eight-way switched fabric. |
| System acceptance | GPU and fabric health, PCIe/NVLink enumeration, memory and storage checks, sustained power/thermal behavior, representative training or inference, and documented firmware/software versions. |
SXM modules are HGX platform components, not standard PCIe add-in cards. NVL and SXM cannot be substituted in the same baseboard.
A chassis reference photo does not prove the installed GPU model. The gallery separately identifies the official HGX H200 baseboard.
More choice. The right platform.
Choose a reference platform first. Its CPU, memory population, GPU topology and storage envelope stay together. Your selections become an itemized inquiry, not a checkout.
Published platform limits are not approval of every combination. NexTec reviews the exact bill of materials, OEM qualification, cooling, power and availability before quoting.
Photos and 3D views illustrate the named reference platform and do not change with these selections. No alternative chassis or GPU geometry is implied.