Loading products and specifications…
AI Server
Build around your workload
Supermicro SYS-421GE-TNRT: 4U Rackmount ai server. Compare processor, memory and expansion requirements; request a configured-system quote.
Tell us the configuration, quantity and destination. Your quotation will show availability, condition, warranty and delivery terms.
Start an order requestSupermicro / PRODUCT DETAILS
See what is installed, then compare it with the platform limits. The maximum supported configuration may be different from what ships with this unit.
KEY SPECIFICATIONS / 01
Confirm drive carriers, backplane, controller and any required cables.
Supermicro / ORDER & INSTALLATION DETAILS
Identify the complete system SKU and board revision.
Check the supported chassis, backplane and riser combination.
Include required cables, cooling parts and drive carriers in the order.
Technical overview
Use the full part number when comparing options or asking about system fit.
| Core count | Up to 64C/128T; Up to 320MB Cache per CPU |
|---|---|
| Memory | Slot Count: 32 DIMM slots Max Memory (1DPC): Up to 4TB 5600MT/s ECC RDIMM Max Memory (2DPC): Up to 8TB 4400MT/s ECC DDR5 RDIMM |
| Memory voltage | 1.1V |
| Form factor | 4U Rackmount |
| Height | 7" (178 mm) |
| Width | 17.2" (437 mm) |
| Depth | 29" (737 mm) |
| Weight | Gross Weight: 100 lbs (45.3 kg) Net Weight: 65.5 lbs (29.7 kg) |
| Product series | GPU SuperServers |
| Brand | Supermicro |
| Model | SYS-421GE-TNRT |
| Catalog line | Supermicro SuperServer |
| Manufacturer | Supermicro |
| Manufacturer P/N | SYS-421GE-TNRT |
| Model / P/N | Supermicro SYS-421GE-TNRT |
| Category | AI Server |
| Product family | Supermicro SuperServer |
| Product reference | Manufacturer documentation is confirmed during RFQ review when a public datasheet is not attached. |
| System model | SYS-421GE-TNRT |
| CPU | Dual Socket E (LGA-4677) 5th Gen Intel® Xeon® / 4th Gen Intel® Xeon® Scalable processors |
| Note | Supports up to 350W TDP CPUs (Air Cooled) |
| Max GPU Count | Up to 10 double-width or 10 single-width GPUs |
| Supported GPU | NVIDIA PCIe: A10, L4, L40, L40S, RTX 5000 Ada, RTX 6000 Ada Generation, RTX A4000 |
| CPU-GPU Interconnect | PCIe 5.0 x16 Switch Dual-Root |
| GPU-GPU Interconnect | NVIDIA® NVLink™ Bridge (optional), Intel® Xe Link Bridges |
| Network Connectivity | 2 RJ45 10GbE with Intel® X710-AT2 |
| Video | 1 VGA port |
| BIOS Type | AMI 32MB SPI Flash EEPROM |
| Software | SuperCloud Composer® (SCC) Supermicro Server Manager (SSM) Supermicro Update Manager (SUM) Supermicro SuperDoctor® 5 (SD5) Super Diagnostics Offline (SDO) Supermicro Thin-Agent Service (TAS) SuperServer Automation Assistant (SAA) New! |
| Power configurations | Power-on mode for AC power recovery ACPI Power Management |
| Hardware | Trusted Platform Module (TPM) 2.0 Silicon Root of Trust (RoT) – NIST 800-193 Compliant |
| Features | Cryptographically Signed Firmware Secure Boot Secure Firmware Updates Automatic Firmware Recovery Supply Chain Security: Remote Attestation Runtime BMC Protections System Lockdown |
| Fan | Fans with tachometer monitoring Pulse Width Modulated (PWM) fan connectors Status monitor for speed control |
| Temperature | Monitoring for CPU and chassis environment Thermal Control for fan connectors |
| Operating Systems | ESXi 7.0 U3, ESXi 8.0, ESXi 9.0, Hypervisor 8.2.1, Oracle Linux 9.0, RHEL 8.6, RHEL 9.0, Windows Server 2019, Windows Server 2022, Windows Server 2025 |
| Enterprise Solutions | VMWare vSAN |
| Package | 26.57" (H) x 27" (W) x 41" (D) |
| Available Color | Black Front & Silver Body |
| Buttons | Power On/Off button System Reset button |
| LED | Hard drive activity LED Network activity LEDs Power status LED System Overheat & Power Fail LED |
| PCI-Express (PCIe) Configuration | Default 13 PCIe 5.0 x16 FHFL slots |
| Drive Bays Configuration | Default: Total 16 bays 8 front hot-swap 2.5" NVMe drive bays 8 front hot-swap 2.5" SATA drive bays Option A: Total 24 bays 8 front hot-swap 2.5" NVMe drive bays 8 front hot-swap 2.5" NVMe* drive bays 8 front hot-swap 2.5" SATA drive bays (*NVMe support may require additional storage controller and/or cables, please see the optional parts list for details) |
| M.2 | 2 M.2 NVMe slots (M-key) |
| Fans | Up to 8 heavy duty fans with optimal fan speed control |
| Environmental Spec. | Operating Temperature: 10°C to 35°C (50°F to 95°F) Non-operating Temperature: -40°C to 60°C (-40°F to 140°F) Operating Relative Humidity: 8% to 90% (non-condensing) Non-operating Relative Humidity: 5% to 95% (non-condensing) |
HOW THIS PRODUCT FITS YOUR SYSTEM
Choose how you plan to use this product.
Match the processor generation, socket population and required heatsink.
Check the installed modules, supported type and population rules.
Use this checklist to describe the change. The host system and full configuration determine which parts will fit.
YOUR QUOTE REQUEST
Add the quantity, options and installation details you want us to quote.
Confirm the exact manufacturer part number, host compatibility and included components. Optional software is quoted separately only when requested.
SUPPORT & REPLACEMENT
Check support dates, replacement options and whether continued use still makes sense.
We do not have confirmed sales and support dates for this part number.
Send us the full SYS-421GE-TNRT order code, software release and support details before planning long-term use.
Ask us to check the current sales and support statusProducts with similar names or connectors may still be incompatible. Compare the full specifications, installed system and software requirements.
Compare related products These products may be related, but we have not confirmed them as replacements.USING HARDWARE RESPONSIBLY
Consider repairability, remaining support and actual operating demand. Extending service life is useful only when the equipment still meets your security and reliability requirements.
Use measured average input power for the same workload. PSU ratings and processor TDP are different from total system power.
Energy difference = (current W − proposed W) × hours × units ÷ 1,000. Excludes cooling, embodied emissions and purchase costs.CONNECTION DETAILS
Choose the host adapters around the workload and the storage protocol. A server NIC, Fibre Channel HBA and SAS HBA serve different connections.
Browse the categories above for related equipment, then send us the full configuration so we can check the fit.
PRODUCT DETAILS
Supermicro / system composition
The complete platform reference defines the integration scope.
Record the exact board and revision.
Record the enclosure, backplane and cooling context.
Server configuration
Rack integration plan
Star Networking reviews upstream switching, storage path, OOB management, power input, rails and service details together so the delivered node can be installed without reworking the BOM.
25/100/400G uplinks, DAC/AOC, optics and OOB management are planned before shipment.
Supermicro SYS-421GE-TNRT is staged with CPU, DIMM, storage, controller, NIC, PSU and firmware profile.
Boot media, hot data tier, capacity tier and backup path are separated in the BOM.
Service terms, serial numbers, labels, packing details and delivery milestones are recorded with the order.
Deployment / workload
Choose platform options and confirm the operating environment before finalizing the design.
Balance core density, memory capacity, boot resilience, east-west traffic and support policy.
Align memory, storage latency, controller mode and network throughput with the application profile.
Plan resilient boot, management access, power redundancy and a repeatable firmware baseline.
Standardize node BOMs, spares, firmware and delivery batches before multi-system rollout.
Compatibility and BOM checks
Manufacturer specifications
This model appears in the manufacturer system matrix. Confirm current orderability, condition and the supplied configuration with your quotation.
| Manufacturer | Supermicro |
|---|---|
| System model | SYS-421GE-TNRT |
| CPU | Dual Socket E (LGA-4677) 5th Gen Intel® Xeon® / 4th Gen Intel® Xeon® Scalable processors |
| Core Count | Up to 64C/128T; Up to 320MB Cache per CPU |
| Note | Supports up to 350W TDP CPUs (Air Cooled) |
| Max GPU Count | Up to 10 double-width or 10 single-width GPUs |
| Supported GPU | NVIDIA PCIe: A10, L4, L40, L40S, RTX 5000 Ada, RTX 6000 Ada Generation, RTX A4000 |
| CPU-GPU Interconnect | PCIe 5.0 x16 Switch Dual-Root |
| GPU-GPU Interconnect | NVIDIA® NVLink™ Bridge (optional), Intel® Xe Link Bridges |
| Memory | Slot Count: 32 DIMM slots Max Memory (1DPC): Up to 4TB 5600MT/s ECC RDIMM Max Memory (2DPC): Up to 8TB 4400MT/s ECC DDR5 RDIMM |
| Memory Voltage | 1.1V |
| Network Connectivity | 2 RJ45 10GbE with Intel® X710-AT2 |
| Video | 1 VGA port |
| BIOS Type | AMI 32MB SPI Flash EEPROM |
| Software | SuperCloud Composer® (SCC) Supermicro Server Manager (SSM) Supermicro Update Manager (SUM) Supermicro SuperDoctor® 5 (SD5) Super Diagnostics Offline (SDO) Supermicro Thin-Agent Service (TAS) SuperServer Automation Assistant (SAA) New! |
| Power configurations | Power-on mode for AC power recovery ACPI Power Management |
| Hardware | Trusted Platform Module (TPM) 2.0 Silicon Root of Trust (RoT) – NIST 800-193 Compliant |
| Features | Cryptographically Signed Firmware Secure Boot Secure Firmware Updates Automatic Firmware Recovery Supply Chain Security: Remote Attestation Runtime BMC Protections System Lockdown |
| CPU | 8+4 Phase-switching voltage regulator Monitors for CPU Cores, Chipset Voltages, Memory |
| Fan | Fans with tachometer monitoring Pulse Width Modulated (PWM) fan connectors Status monitor for speed control |
| Temperature | Monitoring for CPU and chassis environment Thermal Control for fan connectors |
| Operating Systems | ESXi 7.0 U3, ESXi 8.0, ESXi 9.0, Hypervisor 8.2.1, Oracle Linux 9.0, RHEL 8.6, RHEL 9.0, Windows Server 2019, Windows Server 2022, Windows Server 2025 |
| Enterprise Solutions | VMWare vSAN |
| Form Factor | 4U Rackmount |
| Model | CSE-418G2TS-R5K40P |
| Height | 7" (178 mm) |
| Width | 17.2" (437 mm) |
| Depth | 29" (737 mm) |
| Package | 26.57" (H) x 27" (W) x 41" (D) |
| Weight | Gross Weight: 100 lbs (45.3 kg) Net Weight: 65.5 lbs (29.7 kg) |
| Available Color | Black Front & Silver Body |
| Buttons | Power On/Off button System Reset button |
| LED | Hard drive activity LED Network activity LEDs Power status LED System Overheat & Power Fail LED |
| PCI-Express (PCIe) Configuration | Default 13 PCIe 5.0 x16 FHFL slots |
| Drive Bays Configuration | Default: Total 16 bays 8 front hot-swap 2.5" NVMe drive bays 8 front hot-swap 2.5" SATA drive bays Option A: Total 24 bays 8 front hot-swap 2.5" NVMe drive bays 8 front hot-swap 2.5" NVMe* drive bays 8 front hot-swap 2.5" SATA drive bays (*NVMe support may require additional storage controller and/or cables, please see the optional parts list for details) |
| M.2 | 2 M.2 NVMe slots (M-key) |
| Fans | Up to 8 heavy duty fans with optimal fan speed control |
| Environmental Spec. | Operating Temperature: 10°C to 35°C (50°F to 95°F) Non-operating Temperature: -40°C to 60°C (-40°F to 140°F) Operating Relative Humidity: 8% to 90% (non-condensing) Non-operating Relative Humidity: 5% to 95% (non-condensing) |
Compare configurations
Supermicro SYS-421GE-TNRT: 4U Rackmount ai server. Compare processor, memory and expansion requirements; request a configured-system quote.
These specifications describe platform support and expansion options. They do not mean that maximum memory, processors, drives or expansion cards are installed. Review the configured bill of materials for each system.
| Selection criteria | This modelSYS-421GE-TNRTSupermicro SYS-421GE-TNRTRequest configuration for SYS-421GE-TNRT | Compare modelSYS-422GA-NRTSupermicro SYS-422GA-NRTRequest configuration for SYS-422GA-NRT | Compare modelSYS-421GE-TNRT3Supermicro SYS-421GE-TNRT3Request configuration for SYS-421GE-TNRT3 |
|---|---|---|---|
| Processor support | Dual Socket E (LGA-4677) 5th Gen Intel® Xeon® / 4th Gen Intel® Xeon® Scalable processors | Dual Socket BR (LGA-7529) Intel® Xeon® 6900 series processors with P-cores | Dual Socket E (LGA-4677) 5th Gen Intel® Xeon® / 4th Gen Intel® Xeon® Scalable processors |
| Memory support | Slot Count: 32 DIMM slots Max Memory (1DPC): Up to 4TB 5600MT/s ECC RDIMM Max Memory (2DPC): Up to 8TB 4400MT/s ECC DDR5 RDIMM | Slot Count: 24 DIMM slots Max Memory (1DPC): Up to 6TB 6400MT/s ECC DDR5 RDIMM Max Memory (1DPC): Up to 6TB 8800MT/s ECC DDR5 MRDIMM | Slot Count: 32 DIMM slots Max Memory (1DPC): Up to 4TB 5600MT/s ECC DDR5 RDIMM Max Memory (2DPC): Up to 8TB 4400MT/s ECC DDR5 RDIMM |
| Network connectivity | 2 RJ45 10GbE with Intel® X710-AT2 | 2 RJ45 10GbE with Intel® X710-AT2 | 2 RJ45 10GbE with Intel® X710-AT2 |
| Form factor | 4U Rackmount | 4U Rackmount | 4U Rackmount |
| Expansion slots | Default 13 PCIe 5.0 x16 FHFL slots | Default 13 PCIe 5.0 x16 FHFL slots | Default 8 PCIe 5.0 x16 FHFL slots |
| Drive bays | Default: Total 16 bays 8 front hot-swap 2.5" NVMe drive bays 8 front hot-swap 2.5" SATA drive bays Option A: Total 24 bays 8 front hot-swap 2.5" NVMe drive bays 8 front hot-swap 2.5" NVMe* drive bays 8 front hot-swap 2.5" SATA drive bays (*NVMe support may require additional storage controller and/or cables, please see the optional parts list for details) | Option A: Total 8 bays 8 front hot-swap E3.S 1T PCIe 5.0 x4 NVMe drive bays Option B: Total 8 bays 8 front hot-swap E3.L 1T PCIe 5.0 x4 NVMe drive bays Option C: Total 8 bays 8 front hot-swap 2.5" PCIe 5.0 x4 NVMe drive bays | Default: Total 12 bays 4 front hot-swap 2.5" NVMe drive bays 8 front hot-swap 2.5" SATA drive bays |
Other catalog models are shown for selection planning. A shared family or form factor does not confirm component interchangeability. Check the complete P/N, system revision, firmware and requested configuration before ordering.
Model selection & order planning
Supermicro SYS-421GE-TNRT
Explore more products below. Please confirm compatibility before selecting a replacement.
Before you request a quote
Include the full model, manufacturer P/N, revision and quantity.
Tell us the host model, generation, installed configuration and required supporting hardware.
Specify condition, testing requirements, destination and requested delivery date.
AI Server
P/NSYS-421GE-TNRT3
AI Server
P/NSYS-120GQ-TNRT
AI Server
P/NSYS-422GA-NRT
AI Server
P/NSYS-422GA-NBRT-LCC