GPU & HPC Infrastructure

High-Density AI Racks in Princeton, NJ | JustColo

Purpose-built for GPU clusters, AI training, and HPC workloads. 15kW to 100kW+ per rack with direct-to-chip liquid cooling.

High-Density Rack Options for AI Workloads

From standard enterprise deployments to liquid-cooled GPU clusters, we have the infrastructure to match your requirements.

Enterprise Colocation
5kW – 15kWStandard Air Cooling
  • CRAC/CRAH precision cooling
  • Hot/cold aisle containment
  • Flexible cabinet configurations
  • Ideal for mixed IT workloads
High-Density AI Racks
15kW – 40kWPrecision Air + RDHx
  • Rear-door heat exchangers
  • In-row cooling units
  • GPU-optimized layouts
  • AI/ML training ready
Liquid-Cooled GPU
40kW – 100kW+Direct-to-Chip Cooling
  • Direct liquid cooling (DLC)
  • NVIDIA DGX compatible
  • AMD Instinct cluster ready
  • Custom HPC builds supported

Why High-Density Colocation Matters for AI

Standard 5kW racks cannot support modern GPU servers. A single NVIDIA H100 server draws 10kW+. Dense AI training clusters with 4-8 GPU servers per rack require 40-80kW — impossible in legacy data centers designed for 5-7kW average densities.

JustColo is designed from the ground up for high-density — not retrofitted. Our power distribution, cooling capacity, and floor loading are engineered for the realities of modern AI infrastructure.

Cooling architecture: We deploy CRAC/CRAH precision cooling with hot/cold aisle containment, in-row cooling for targeted heat removal, free cooling economizers for efficiency, and liquid cooling infrastructure for the highest densities.

High density AI server racks at JustColo Princeton
Direct-to-chip liquid cooling infrastructure

Liquid Cooling for High-Density GPU Racks

Direct-to-Chip (DLC)

Coolant flows directly to CPU and GPU cold plates, removing heat at the source. Enables rack densities of 100kW+ with superior thermal management.

Rear-Door Heat Exchangers (RDHx)

Hot exhaust air is captured and cooled at the rack rear before entering the room. Ideal for 20-50kW racks without modifying servers.

Supported Platforms

  • NVIDIA DGX H100, A100, H200 systems
  • AMD Instinct MI300X clusters
  • Custom HPC and AI training builds

Redundant Power for GPU Workloads

Bloom Energy Fuel Cells

Behind-the-meter natural gas fuel cells provide clean, stable power for power-hungry GPU workloads. Lower cost than utility power with reduced carbon footprint.

N+1 Redundancy

No single point of failure in our power distribution. UPS systems, generators, and automatic transfer switches ensure continuous operation for your AI training runs.

Dedicated Circuits

High-density PDUs with dedicated circuits per rack available. Monitor power consumption at the outlet level with full DCIM integration.

Power distribution infrastructure at JustColo

Cloud & Hybrid AI Connectivity from Princeton NJ

Low-latency connections to AWS, Azure, and GCP via our carrier hotel network. Ideal for hybrid AI architectures — train on-premises, deploy inference to the cloud.

<1ms
to NYC carrier hotels
7+
Interconnection points
800G
Optical wave capacity

Frequently Asked Questions

Discuss Your AI Infrastructure at JustColo Princeton

Opening January 2027. Reserve capacity now for your GPU clusters and AI training workloads.

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