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- Overview
Overview
Supermicro AS-8126GS-NB3RT HGX B300 GPU A+ is an 8U rackmount server supporting dual AMD EPYC 9005 or 9004 processors with up to 384 cores, 6 TB of DDR5 memory, and eight NVIDIA SXM GPUs for extreme compute performance. It features PCIe 5.0 expansion, E1.S NVMe storage, advanced security and management tools, and high bandwidth networking for demanding AI and data center workloads.
Specifications
Model Number: AS-8126GS-NB3RT
Brand: Supermicro
Alt Part Number(s): AS-8126GS-NB3RT
Product Type: Server
Technical Description
Brand: Supermicro
Model: AS-8126GS-NB3RT
CPU: Dual processors; AMD EPYC 9005/9004 Series Processors
Core Count: Up to 384C/768T
Note: Supports up to 500 Watts TDP CPUs
Max GPU Count: 8 onboard GPUs
Supported GPU: NVIDIA SXM: HGX B300 8-GPU (288 GB)
GPU-GPU Interconnect: NVIDIA NVLink with NVSwitch
Memory: Slot Count: 24 DIMM slots; Max Memory (1DPC): Up to 6 TB 6400 MT/s ECC DDR5 RDIMM (AMD EPYC 9005 Series Processor); Max Memory (1DPC): Up to 6 TB 4800 MT/s ECC DDR5 RDIMM (AMD EPYC 9004 Series Processor)
Memory Voltage: 1.1 Volts
Chipset: System on Chip
Network Connectivity: 8 OSFP 800 GbE; 2 RJ45 10 GbE
USB: 1 USB 3.0 Type-A port (Front); 1 USB 2.0 Type-A port (Front)
Video: 1 VGA port; 1 mini-DP port
BIOS Type: AMI 64 MB UEFI
Software: SuperCloud Composer; Supermicro Server Manager (SSM); Super Diagnostics Offline (SDO); Supermicro Thin-Agent Service (TAS); SuperServer Automation Assistant (SAA)
Power Configurations: Power-on mode for AC power recovery; ACPI Power Management
Hardware Security: Trusted Platform Module (TPM) 2.0; Silicon Root of Trust (RoT) – NIST 800-193 Compliant
Security Features: Cryptographically Signed Firmware; Secure Boot; Secure Firmware Updates; Automatic Firmware Recovery; Supply Chain Security (Remote Attestation); Runtime BMC Protections; System Lockdown
PC Health Monitoring: Monitors CPU cores, chipset voltages, memory; 8+4 phase-switching voltage regulator
Fan Monitoring: Fans with tachometer monitoring; Status monitor for speed control; Pulse Width Modulated fan connectors
Temperature Monitoring: CPU and chassis environment; Thermal control for fan connectors
Form Factor: 8U Rackmount, GPU Server
Available Color: Silver
LED: HDD activity; LAN1 activity; LAN2 activity; Power fail; Power status; System information (overheat/UID)
Buttons: Power On/Off; UID
PCI-Express Configuration: 2 PCIe 5.0 x16 FHHL slots
Drive Bays Configuration: Total 8 bays; 8 front hot-swap E1.S NVMe drive bays
M.2: 2 M.2 NVMe slots (M-key)
Fans: Up to 12 heavy duty fans with optimal speed control
Power Supply: 6× 6600 Watts redundant (3+3) Titanium Level power supplies
Dimension: 106.5 × 82.1 × 245.3 millimeters
Input: 5900 Watts: 200–207.9 Vac / 50–60 Hz; 6000 Watts: 208–219.9 Vac / 50–60 Hz; 6300 Watts: 220–229.9 Vac / 50–60 Hz; 6500 Watts: 230–238.9 Vac / 50–60 Hz; 6600 Watts: 239–240 Vac / 50–60 Hz
12V Output: Max 130A / Min 0A (all voltage ranges)
12V Standby: Max 4A / Min 0A
Output Type: Backplanes (gold finger)
Environmental Specifications: Operating Temperature: 10°C to 35°C; Non-operating Temperature: –40°C to 60°C; Operating Relative Humidity: 8% to 90% (non-condensing); Non-operating Relative Humidity: 5% to 95% (non-condensing)
*Product descriptions, images, and part numbers are subject to change and may not accurately reflect manufacturer product alterations. For the latest and most precise information, kindly refer to the manufacturer's website and use the item's manufacturer part number.

