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Supermicro SYS-421GE-TNRT 4U GPU Server Barebone, Dual Socket E (LGA-4677) 4th Gen Intel® Xeon® Scalable processors.

  • Key Applications: Web Server, Firewall Application, Data Center Optimized, Value IaaS, Cloud Computing, Compact Server, DNS & Gateway Servers, Firewall ApplicationCDN, Edge Nodes
  • Key Features: 32 DIMM slots Up to 8TB: 32x 256 GB DRAM Memory Type: 4800MHz ECC DDR5
  • 13 PCIe Gen 5.0 X16 FHFL Slots
  • -AIOM/OCP 3.0 Support
  • 8x 2.5" Hot-swap SATA drive bays
  • 8x HOT SWAP 2.5” SATA/SAS (AOC required)
  • 8x2.5" Hot-swap NVMe drive bays
  • 8 Hot-Swap Heavy Duty Fans with Optimal Fan Speed Control
  • 4x 2700W (2+2) Redundant Power Supplies, Titanium Level
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Learn more about the Supermicro SYS-421GE-TNRT

General
Brand SUPERMICRO
Model SYS-421GE-TNRT
Form Factor 4U Rackmount
Workload AI/ML/HPC
CPU Supported
CPU Type Intel Xeon
CPU Socket LGA 4677
Installed CPU No CPU Installed
Max Processors 2
CPU Features 4th Gen Intel Xeon Scalable processors
Future support for the upcoming 5th Gen Intel Xeon processors
Supports up to 350W TDP CPUs (Air Cooled)
Supports up to 350W TDP CPUs (Liquid Cooled)
Chipset
North Bridge Intel C741
Memory Supported
Memory Slots 32 x 288Pin
Installed Memory Size No Memory Installed
Max Memory Supported Up to 8TB: 32 x 256 GB DRAM
Memory Type Supported DDR5 4800
ECC Supported Yes
Storage Supported
Installed HDD No Storage Installed
M.2 2 x M.2 NVMe
Graphics
GPU/VPU Max GPU Count: Up to 10 double-width or 10 single-width GPU(s)
Supported GPU: NVIDIA PCIe: A100, L40S, A10, H100, L40
CPU-GPU Interconnect: PCIe 5.0 x16 Switch Dual-Root
GPU-GPU Interconnect: NVIDIA NVLink Bridge (optional)
Expansion Slots
PCI Express 12 x PCIe 5.0 x16 FHFL slot(s)
1 x PCIe 5.0 X16 FHFL slot(s)
Communications
First LAN Intel X710-AT2
Max. LAN Speed 10 Gigabit
Expansion Bays
Hot-Swap Bays 24 x 2.5" hot-swap NVMe/SATA/SAS drive bays (8x 2.5" NVMe hybrid; 8x 2.5" NVMe dedicated)
Panel Ports
VGA 1
RJ45 2
Environment
Temperature Operating Temperature: 10°C ~ 35°C (50°F ~ 95°F)
Non-operating Temperature: -40°C to 60°C (-40°F to 140°F)
Humidity Operating Relative Humidity: 8% to 90% (non-condensing)
Non-operating Relative Humidity: 5% to 95% (non-condensing)
Features
Features Cryptographically Signed Firmware
Secure Boot
Secure Firmware Updates
Automatic Firmware Recovery
Supply Chain Security: Remote Attestation
Runtime BMC Protections
System Lockdown
Dimensions & Weight
Dimensions 7" x 17.2" x 29"
Weight 65.5 lbs.
Additional Information
First Listed on Newegg October 31, 2023

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 3 years
  • Read full details

Return Policies

    We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.

  • Return for refund until: January 31, 2027
  • Return for replacement until: January 31, 2027
  • This item is covered by Newegg.com's Extended Holiday Return Policy.
  • Read full return policy for details.
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The Supermicro SYS-421GE-TNRT is a dual-socket 4U GPU server barebone for organizations building AI/ML, HPC, or data-center systems that need support for up to 10 double-width GPUs, large DDR5 ECC memory capacity, and PCIe 5.0 expansion; CPUs, memory, and storage are not included.

Recommended For

  • AI and deep-learning teams running sustained GPU training or inference in a rack: the system is designed for up to 10 PCIe GPUs and is positioned for AI and deep-learning workloads.
  • HPC and research groups that need a shared, rack-mounted compute node for GPU-accelerated workloads, with dual Xeon support and extensive memory capacity.
  • Teams serving GPU-backed VDI, cloud gaming, or media and video workloads from a data center rather than from individual desktop workstations.
  • 3D rendering, animation, and visualization teams that want to consolidate GPU compute into a rack server for shared or batch workloads.

Spec Summary

AttributeValue
Best ForAI/ML/HPC server workloads needing a 4U rackmount platform with support for up to two Intel Xeon processors and up to 10 GPUs
Processor And PlatformDual-socket LGA 4677 platform for 4th Gen Intel Xeon Scalable processors, with future support for 5th Gen; CPUs are not included, and supported CPUs can have up to 350W TDP with air or liquid cooling; Intel C741 chipset
Memory Configuration32 x 288-pin slots support DDR5-4800 ECC memory, up to 8TB using 32 x 256GB modules; memory is not included
GPU And ExpansionSupports up to 10 double- or single-width GPUs, including NVIDIA A100, L40S, A10, H100, and L40; 13 PCIe 5.0 x16 FHFL slots, dual-root PCIe 5.0 x16 CPU-GPU switching, and optional NVIDIA NVLink bridging
Storage And Drive Bays24 hot-swap 2.5-inch NVMe/SATA/SAS bays, including 8 NVMe hybrid and 8 NVMe dedicated bays; 2 M.2 NVMe slots; no storage installed
Networking And I/OIntel X710-AT2 LAN with up to 10 Gigabit speed, 2 RJ45 ports, and 1 VGA connector
Security And FirmwareCryptographically signed firmware, Secure Boot, secure firmware updates, automatic firmware recovery, remote attestation for supply-chain security, runtime BMC protections, and system lockdown
Operating EnvironmentOperating temperature 10°C to 35°C and relative humidity 8% to 90% non-condensing; non-operating temperature -40°C to 60°C and relative humidity 5% to 95% non-condensing
Chassis And Form Factor4U rackmount chassis measuring 7 x 17.2 x 29 inches and weighing 65.5 lb
Model IdentifiersSupermicro SYS-421GE-TNRT