Name: Supermicro SuperServer SYS-421GE-TNRT - SunSpike
SKU: SYS-421GE-TNRT

The Supermicro SuperServer SYS-421GE-TNRT is a high-density 4U rackmount server designed for compute-intensive workloads such as Artificial Intelligence (AI) training, Large Language Model (LLM) inference, High-Performance Computing (HPC), 3D graphics rendering, and deep learning data analytics.

Powered by dual 4th or 5th Generation Intel® Xeon® Scalable processors and supporting up to 8 double-width PCIe 5.0 GPUs, this platform provides enterprise-grade scalability, massive PCI Express bandwidth, and extreme thermal resilience.

Key Highlights

High GPU Density: Accommodates up to 8 x double-width PCIe 5.0 x16 GPUs (such as NVIDIA H100 PCIe, L40S, A100, or RTX 6000 Ada).
Dual CPU Architecture: Supports two 4th/5th Gen Intel® Xeon® Scalable processors up to 350W TDP per socket.
Massive Memory Footprint: 32 DDR5 DIMM slots providing up to 8TB of high-bandwidth memory.
Flexible Storage Setup: Up to 24 hot-swap 2.5″ drive bays supporting NVMe, SAS, and SATA drives.
Redundant Power Efficiency: Quad Titanium Level (96% efficiency) redundant power supplies ensuring uninterrupted operation.

Detailed Specifications

Category	Specification Details
System Model	Supermicro SYS-421GE-TNRT
Form Factor	4U Rackmount
Motherboard	Super X13DEG-QT
Processor Support	• Sockets: Dual Socket E (LGA-4677) • CPU Family: 4th & 5th Gen Intel® Xeon® Scalable Processors • Thermal TDP: Up to 350W per CPU
System Memory	• DIMM Slots: 32 DIMM slots • Type: DDR5 ECC Registered RDIMM • Max Capacity: Up to 8TB • Memory Speed: Up to 4800 MT/s (4th Gen) / 5600 MT/s (5th Gen)
GPU Acceleration	• Capacity: Up to 8 x double-width PCIe 5.0 x16 GPUs • Supported GPUs: NVIDIA H100, L40S, L40, A100, RTX 6000 Ada, etc.
Expansion Slots	• 8 x PCIe 5.0 x16 double-width FHFL slots (for GPUs) • Additional PCIe 5.0 x16/x8 slots for high-speed NICs (InfiniBand/100G/200G/400G Ethernet)
Drive Bays & Storage	• Front Bays: Up to 24 x 2.5″ Hot-swap Drive Bays (NVMe / SAS / SATA) • Boot Drives: 2 x M.2 PCIe 4.0 x4 NVMe slots onboard
Networking	• 2 x 10GbE RJ45 LAN ports (Intel® X550-AT2 controller) • 1 x Dedicated RJ45 IPMI management port
Power Supply	• Configuration: 4 x Redundant Titanium Level power supply units (3+1 or 2+2 redundant configuration) • Wattage: 2000W / 2700W / 3000W options (100V-240V AC / 240V DC)
System Cooling	• Multiple high-performance heavy-duty hot-swappable fans with optimal airflow ducting
Management & Security	• IPMI 2.0 with virtual media & KVM-over-LAN • Redfish API, Supermicro Server Manager (SSM) • TPM 2.0 header support
Dimensions	• Width: 17.2 in (437 mm) • Height: 7.0 in (178 mm) • Depth: 32.3 in (821 mm)