Supermicro SuperServer SYS-821GU-TNXR 8U GPU Server (Redundant PSU variant)

Supermicro SuperServer SYS-821GU-TNXR 8U GPU Server (Redundant PSU variant)

Brand: Supermicro | Category: GPUs

SKU: SYS-821GU-TNXR | Part #: SYS-821GU-TNXR | MPN: SYS-821GU-TNXR

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About the Supermicro SuperServer SYS-821GU-TNXR 8U GPU Server (Redundant PSU variant)

The Supermicro SuperServer SYS-821GU-TNXR is an 8U rackmount GPU server engineered for the most demanding AI training, high-performance computing, and large-scale inferencing workloads in modern datacenters. Built on the Intel Xeon Scalable (Sapphire Rapids) platform, the system supports dual processors and is designed to accommodate up to 8 double-width GPU accelerators, enabling massive parallel compute throughput for deep learning model development, scientific simulation, and real-time analytics pipelines.

The SYS-821GU-TNXR incorporates a high-bandwidth NVLink and PCIe Gen 5 interconnect fabric, allowing GPU-to-GPU communication with minimal latency — a critical requirement for multi-GPU tensor operations and distributed training jobs. The chassis supports high-capacity DDR5 registered ECC memory across multiple channels per processor, ensuring memory bandwidth and reliability appropriate for enterprise and research-grade deployments. Integrated dual 10GbE and optional high-speed networking ports provide flexible connectivity to storage fabrics and cluster interconnects.

As the redundant PSU variant, the SYS-821GU-TNXR is equipped with hot-swap, redundant power supply units to satisfy enterprise uptime and fault-tolerance requirements. The system ships with Supermicro's IPMI 2.0-based out-of-band management via a dedicated BMC, supporting remote monitoring, power control, and health telemetry. This makes the platform well suited for deployment in colocation facilities, hyperscale AI infrastructure, and GPU cloud environments serving UAE, GCC, EMEA, and APAC markets through Omnixon Global.

Ideal for

  • Large-scale deep learning model training using multi-GPU parallelism across frameworks such as PyTorch and TensorFlow
  • High-throughput AI inference serving for computer vision, natural language processing, and recommendation engine workloads
  • High-performance computing (HPC) simulations in computational fluid dynamics, molecular dynamics, and finite element analysis
  • GPU-accelerated data analytics and in-memory processing for enterprise business intelligence platforms
  • Rendering farm nodes for visual effects, 3D animation, and real-time ray tracing pipelines
  • Sovereign AI and private cloud GPU cluster buildouts requiring redundant, enterprise-grade hardware in datacenter environments

Technical specifications

ManufacturerSupermicro
Part NumberSYS-821GU-TNXR
Form Factor8U Rackmount
Processor SupportDual 4th Gen Intel Xeon Scalable (Sapphire Rapids)
SocketLGA4677 (Socket E) x2
GPU SupportUp to 8 double-width GPU accelerators (SXM or PCIe depending on configuration)
PCIe GenerationPCIe 5.0
Memory TypeDDR5 ECC Registered (RDIMM)
Memory Slots32 x DIMM slots (16 per CPU)
Storage BaysSupports NVMe and SATA/SAS drive bays (configuration-dependent)
Network InterfaceDual 10GbE Base-T onboard; additional high-speed NIC support via PCIe
ManagementIPMI 2.0, dedicated BMC, KVM-over-IP, Supermicro IPMI web interface
Power SupplyRedundant hot-swap PSU (high-wattage, N+1 configuration)
Operating System SupportUbuntu, RHEL, Windows Server, VMware ESXi
ChassisSupermicro 8U server chassis with high-airflow GPU cooling design
Expansion SlotsMultiple PCIe 5.0 slots for GPU and NIC expansion
Security FeaturesSecure Boot, TPM 2.0 header support
ComplianceRoHS compliant

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

Technical Specifications

BrandSupermicro
CategoryGPUs
SKUSYS-821GU-TNXR
Part NumberSYS-821GU-TNXR
ConditionNew
Form Factor8U Rackmount
Processor SupportDual 4th Gen Intel Xeon Scalable (Sapphire Rapids)
SocketLGA4677 (Socket E) x2
GPU SupportUp to 8 double-width GPU accelerators (SXM or PCIe depending on configuration)
PCIe GenerationPCIe 5.0
Memory TypeDDR5 ECC Registered (RDIMM)
Memory Slots32 x DIMM slots (16 per CPU)
Storage BaysSupports NVMe and SATA/SAS drive bays (configuration-dependent)
Network InterfaceDual 10GbE Base-T onboard; additional high-speed NIC support via PCIe
ManagementIPMI 2.0, dedicated BMC, KVM-over-IP, Supermicro IPMI web interface
Power SupplyRedundant hot-swap PSU (high-wattage, N+1 configuration)
Operating System SupportUbuntu, RHEL, Windows Server, VMware ESXi
ChassisSupermicro 8U server chassis with high-airflow GPU cooling design
Expansion SlotsMultiple PCIe 5.0 slots for GPU and NIC expansion
Security FeaturesSecure Boot, TPM 2.0 header support
ComplianceRoHS compliant

Frequently Asked Questions about Supermicro SuperServer SYS-821GU-TNXR 8U GPU Server (Redundant PSU variant)

What server platforms accept the Supermicro SuperServer SYS-821GU-TNXR 8U GPU Server (Redundant PSU variant)?

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.