Omnixon Global
Supermicro GPU Server SYS-621GU-TNXR (8x GPU 2U)

Supermicro GPU Server SYS-621GU-TNXR (8x GPU 2U)

Brand: Supermicro | Category: GPUs

SKU: SYS-621GU-TNXR | Part #: SYS-621GU-TNXR | MPN: SYS-621GU-TNXR

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About the Supermicro GPU Server SYS-621GU-TNXR (8x GPU 2U)

The Supermicro SYS-621GU-TNXR is a 2U rackmount GPU server engineered to support up to eight double-width GPU accelerators, making it one of the most compute-dense platforms in its form factor. Built on the X13 generation architecture with dual 4th Gen Intel Xeon Scalable processor support, the system delivers the PCIe 5.0 bandwidth and memory capacity necessary to feed modern large-scale AI training and high-performance computing workloads. The chassis accommodates GPU interconnects at full bandwidth while maintaining the thermal and power delivery infrastructure required for sustained operation under continuous workloads in production datacenter environments.

The SYS-621GU-TNXR supports dual Intel Xeon Scalable processors (4th Gen, Sapphire Rapids) with up to 32 DIMM slots accommodating DDR5 registered memory, providing the high-bandwidth CPU-to-GPU data paths essential for deep learning model training, inference serving, and scientific simulation. Eight PCIe 5.0 x16 GPU slots enable full-bandwidth connectivity for each accelerator, while the platform also integrates high-speed networking options and multiple NVMe storage bays to eliminate I/O bottlenecks across demanding pipeline stages. Supermicro's Building Block Solutions architecture allows the system to be configured with a range of GPU types including NVIDIA H100, A100, and other SXM or PCIe accelerators depending on the specific configuration selected.

Designed for enterprise datacenters, cloud service providers, and AI infrastructure deployments across regions including the UAE, GCC, EMEA, and APAC, the SYS-621GU-TNXR is available through Omnixon Global. The platform aligns with Supermicro's green computing initiatives, incorporating high-efficiency redundant power supply units and intelligent fan management to optimize power usage effectiveness at the rack level. Its 2U density makes it particularly well-suited for operators seeking to maximize GPU compute per rack unit while retaining full compatibility with standard 19-inch datacenter cabinet infrastructure.

Ideal for

  • Large-scale deep learning model training using frameworks such as PyTorch and TensorFlow across eight parallel GPU accelerators
  • High-throughput AI inference serving for real-time natural language processing, computer vision, and recommendation engine applications
  • High-performance computing (HPC) workloads including computational fluid dynamics, molecular dynamics simulation, and climate modeling
  • Generative AI and large language model (LLM) fine-tuning requiring substantial GPU memory capacity and fast inter-GPU communication
  • Medical imaging AI and genomics processing pipelines demanding sustained multi-GPU parallel throughput in healthcare and life sciences environments
  • Cloud service provider GPU-as-a-Service infrastructure requiring dense, rack-efficient multi-tenant GPU compute nodes

Technical specifications

ManufacturerSupermicro
Manufacturer Part NumberSYS-621GU-TNXR
Form Factor2U Rackmount
Processor SupportDual 4th Gen Intel Xeon Scalable Processors (LGA-4677)
Processor SocketLGA-4677 x2
ChipsetIntel C741
Memory Slots32 x DDR5 DIMM slots
Memory TypeDDR5 ECC RDIMM / 3DS RDIMM
GPU Slots8 x PCIe 5.0 x16 double-width GPU bays
PCIe GenerationPCIe 5.0
Storage Bays4 x 2.5" NVMe/SATA/SAS hot-swap drive bays
Network Interface2 x 10GBase-T onboard (Intel X550); additional OCP 3.0 mezzanine slot
ManagementSupermicro IPMI 2.0 with dedicated management port; SMCI BMC
Power SupplyRedundant 2+2 or 3+1 high-efficiency Titanium-level PSUs
System Dimensions2U (3.47" H x 17.2" W x 34.6" D)
Operating Temperature10°C to 35°C
Regulatory ComplianceCE, FCC, RoHS
ChassisSupermicro CSE-216 series 2U chassis

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.

Technical Specifications

BrandSupermicro
CategoryGPUs
SKUSYS-621GU-TNXR
Part NumberSYS-621GU-TNXR
ConditionNew
Manufacturer Part NumberSYS-621GU-TNXR
Form Factor2U Rackmount
Processor SupportDual 4th Gen Intel Xeon Scalable Processors (LGA-4677)
Processor SocketLGA-4677 x2
ChipsetIntel C741
Memory Slots32 x DDR5 DIMM slots
Memory TypeDDR5 ECC RDIMM / 3DS RDIMM
GPU Slots8 x PCIe 5.0 x16 double-width GPU bays
PCIe GenerationPCIe 5.0
Storage Bays4 x 2.5" NVMe/SATA/SAS hot-swap drive bays
Network Interface2 x 10GBase-T onboard (Intel X550); additional OCP 3.0 mezzanine slot
ManagementSupermicro IPMI 2.0 with dedicated management port; SMCI BMC
Power SupplyRedundant 2+2 or 3+1 high-efficiency Titanium-level PSUs
System Dimensions2U (3.47" H x 17.2" W x 34.6" D)
Operating Temperature10°C to 35°C
Regulatory ComplianceCE, FCC, RoHS
ChassisSupermicro CSE-216 series 2U chassis

Frequently Asked Questions about Supermicro GPU Server SYS-621GU-TNXR (8x GPU 2U)

What server platforms accept the Supermicro GPU Server SYS-621GU-TNXR (8x GPU 2U)?

Reference servers include Dell PowerEdge XE9680 / XE9712, HPE Cray XD670, Lenovo ThinkSystem SR685a / SR675 V3, Supermicro AS-A21GE / SYS-821GE, Gigabyte G593 / G894, ASUS ESC. Share your target platform in the RFQ and we will confirm chassis-to-GPU compatibility and recommended NIC pairing.

How long is the lead time on AI GPUs?

Highly model-dependent. L40S / RTX-class: typically 3-6 weeks. H100/H200/B200 in SXM form factor: 12-16 weeks for whole-platform allocations. We quote genuine-channel ETAs only — no grey-market promises.

Do you supply matched networking (Quantum InfiniBand / Spectrum-X)?

Yes — Omnixon stocks the full NVIDIA networking lineup (Quantum-2 / Quantum-X InfiniBand, Spectrum-X Ethernet, ConnectX NICs, BlueField DPUs) so we can quote a complete training-cluster BOM, not just the GPUs.

Can you help with NVIDIA AI Enterprise licensing?

Yes. We hold genuine-channels for NVIDIA AI Enterprise software subscriptions. Add it to your RFQ and we quote node-aligned licensing along with the hardware.