SYS-421GU-TNXR Supermicro SuperServer Dual Xeon Scalable 5th Gen 4U Server
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SYS-421GU-TNXR
High-Performance 4U GPU Server engineered for NVIDIA HGX SXM and PCIe 5.0 expansion with the SYS-421GU-TNXR
The SYS-421GU-TNXR is a 4U rackmount GPU server built around a dual-socket Intel Xeon Scalable 5th/4th Gen platform (LGA4677, C741) and an NVIDIA HGX SXM GPU baseboard with NVLink. This architecture targets high-throughput AI training, fine-tuning, and GPU-accelerated HPC where deterministic interconnect behavior and sustained power delivery are as critical as raw compute density.
With DDR5 ECC RDIMM across 32 DIMM slots, the SYS-421GU-TNXR supports large, bandwidth-sensitive memory footprints for data pipelines, model states, and multi-tenant scheduling, while maintaining enterprise-grade error correction. CPU-to-GPU connectivity is delivered via PCIe 5.0 x16 links into the HGX complex, aligning host I/O with GPU memory and NVLink fabric performance. Storage is optimized for fast ingest and checkpointing through 6 front hot-swap 2.5-inch bays supporting NVMe or SATA, supplemented by dual M.2 2280 slots for boot or local cache. Eight PCIe 5.0 x16 low-profile slots enable high-speed NICs, DPUs, or fabric adapters; a dedicated RAID controller or HBA is required when hardware RAID is needed.
Why Choose the SYS-421GU-TNXR?
The SYS-421GU-TNXR delivers a balanced density-to-performance ratio by combining HGX SXM GPUs, dual Xeon scalability, and redundant power in a serviceable 4U footprint. For cluster rollouts, the SYS-421GU-TNXR simplifies standardized deployment with consistent I/O lanes, predictable thermals, and IPMI/BMC management for remote operations and lifecycle automation.
Supermicro designs this platform with datacenter integration in mind, emphasizing validated component interoperability, maintainable chassis service paths, and reliability features that support continuous operation under sustained AI and HPC loads.
Key Applications:
- AI model training and fine-tuning
- LLM inference at scale
- GPU-accelerated HPC simulation
- Multi-tenant GPU compute
- High-speed storage ingest and checkpointing
At Happyware - Server Hardware you benefit from non-binding offers tailored to the exact SYS-421GU-TNXR configuration and an extended warranty up to 6 years to secure long-term uptime planning for critical AI and HPC deployments.
Technical details of SYS-421GU-TNXR
How long is the Warranty and how you can get technical support for SYS-421GU-TNXR
| Warranty: | 12 months (part) 12 months (labor) |
|---|---|
| Advanced replacement: | yes |
| RMA Url: | https://www.supermicro.com/support/rma/ |
| Description: | Cross-Shipment only in specific Time Frames. RMA-Number Required, No guaranteed delivery times. On-site service is not standard. |
| Support Portal: | https://support.happyware.com |
|---|
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