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Silver 2U rack server front with eight E1.S drive bays and dual GPU cards visible

Supermicro

Supermicro ARS-221GL-NR-OTO-33 2U rack server, Grace Superchip, 480GB LPDDR5X, 3.84TB+960GB SSD, 2x L40S 48GB

SKU CH-27JN-14J94 MPN ARS-221GL-NR-OTO-33

2U AI/ML/HPC rack server with dual NVIDIA Grace 72-core CPUs, 480GB LPDDR5X memory, 3.84TB and 960GB SSDs, plus two L40S GPUs with 48GB GDDR6 each

  • WorkloadAI/ML/HPC Server
  • TypeRack
  • Rack Height2U
  • CPU TypeNVIDIA Grace Superchip
  • Number of CPU Cores72-Core Processor
  • CPU FeaturesSupports up to 500W TDP CPUs (Air Cooled)
  • Dual 72-core Grace Superchip accelerates AI/ML/HPC workloads
  • 480GB LPDDR5X unified memory feeds both CPUs and GPUs
  • Two L40S GPUs with 48GB GDDR6 each power large-model inference
  • 84TB E1.S plus 960GB M.2 SSD storage for fast datasets
  • Eight front hot-swap E1.S bays enable storage expansion

Grace Superchip 2U Server

The Supermicro ARS-221GL-NR-OTO-33 is a 2U rackmount server built around the NVIDIA Grace Superchip with dual 72-core CPUs and 480GB of LPDDR5X memory. It targets AI, machine learning and HPC workloads that demand high memory bandwidth and GPU acceleration in a compact form factor.

Dual L40S GPUs and Mixed Storage

Two NVIDIA L40S GPUs each provide 48GB of GDDR6 memory for training and inference tasks. Storage combines a 3.84TB E1.S EDSFF SSD with a 960GB M.2 SSD, while eight front hot-swap E1.S bays allow additional NVMe capacity to be added without downtime.

Air-Cooled 500W TDP Installation

The system uses air cooling rated for up to 500W TDP CPUs, so adequate rack airflow is essential. Installers must verify that the 25GbE SFP28 networking matches existing switch ports and that the operating temperature range of 10°C to 35°C can be maintained in the target environment.

Puntos fuertes

  • Dual 72-core Grace Superchip accelerates AI/ML/HPC workloads
  • 480GB LPDDR5X unified memory feeds both CPUs and GPUs
  • Two L40S GPUs with 48GB GDDR6 each power large-model inference
  • 84TB E1.S plus 960GB M.2 SSD storage for fast datasets
  • Eight front hot-swap E1.S bays enable storage expansion

Especificaciones

BrandSUPERMICRO
ModelARS-221GL-NR-OTO-33
WorkloadAI/ML/HPC Server
TypeRack
Rack Height2U
CPU TypeNVIDIA Grace Superchip
Number of CPU Cores72-Core Processor
CPU FeaturesSupports up to 500W TDP CPUs (Air Cooled)
ChipsetNVIDIA C2
Installed Memory Size480GB
Memory TypeLPDDR5X
SSD (Installed)3.84TB + 960GB
GPU Type2 x NVIDIA Ada L40S
Video Memory48GB GDDR6
Ethernet Controller1 x Standard NVIDIA 25GbE with 2 SFP28 ports
Expansion Bays8 front hot-swap E1.S NVMe drive bay(s)
TemperatureOperating Temperature: 10°C ~ 35°C (50°F ~ 95°F)
Non-operating Temperature: -40°C to 60°C (-40°F to 140°F)
HumidityOperating Relative Humidity: 8% to 90% (non-condensing)
Non-operating Relative Humidity: 5% to 95% (non-condensing)
Dimensions3.46" x 17.25" x 35.43"
Weight67.5 lbs.
Peso de envío29.71 kg
Dimensiones del paquete1219 × 711 × 241 mm

Preguntas sobre este artículo

Will the LPDDR5X memory need to be replaced or upgraded during the server's lifespan?

The 480GB LPDDR5X memory is soldered directly to the Grace Superchip package and cannot be removed, upgraded or replaced separately.

Which limit appears first when the dual 72-core Grace Superchip and two L40S GPUs run sustained AI workloads?

The air-cooled thermal design is rated for up to 500W TDP CPUs; sustained full-load operation will hit the cooling capacity before other subsystems become the bottleneck.

How much heat and noise should I expect from this 2U system running all day in a 35°C rack?

With dual L40S GPUs and a 500W TDP CPU limit, the system moves a large volume of air through the 2U chassis; expect significant fan noise and exhaust heat that requires adequate rack airflow.

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