Description
Condition: REFURBISHED
Manufacturer Part #: 920-9B36M-00MX-8NS
NVIDIA Quantum-3 based XDR InfiniBand CPO Switch - Managed System Model Q3450-LD - 4U form factor - 144 XDR Ports over 144 MPOs Connectors - 48VDC - Connector-to-Power (C2P) Liquid-cooled Airflow (reverse) - Rail Kit
The NVIDIA Quantum-3 family of fixed-configuration switches revolutionizes the performance, scalability, and efficiency of high-performance computing and AI infrastructures, enabling faster and more effective AI processing and computation.
NVIDIA is advancing data center networking into the agentic AI era with co-packaged optics (CPO). By integrating silicon photonics directly with the InfiniBand switch ASIC, the Q3450-LD eliminates the need for pluggable optical transceivers--reducing electrical loss, enhancing signal integrity, and improving overall power and thermal efficiency. With 144 800Gb/s ports connected via direct MPO connectors, the Q3450-LD delivers unmatched port density and radix--ideal for building high-performance AI fabrics at scale. CPO technology reduces the high-speed electrical path to just a few millimeters within the substrate, slashing insertion loss to ~4 dB--compared to 22 dB in traditional pluggable designs. This results in 63x better signal integrity, enabling higher data rates with lower DSP complexity and reduced power per bit.
As part of the NVIDIA Quantum-X800 InfiniBand platform, the Q3450-LD is purpose-built for AI workloads that require ultra-low latency, high bandwidth, and deterministic performance across multiple thousands of GPUs. It also simplifies thermal design and cable management, accelerating the deployment and scaling of power-efficient InfiniBand-based AI Factories.
Environmental
Temperature: Operational: Reverse air flow: 5Ā° to 40Ā°C | Non-Operational: -40Ā° to 70Ā°C
Humidity: Operational: 10%-85% non-condensing | Non-Operational: 10%-90% non-condensing
Altitude: 3050m
Noise level: TBD
Regulatory
Safety: CB, cTUVus, CE, CU
EMC: EMC: CE, FCC, VCCI, ICES, RCM
RoHS: RoHS compliant
Power
Input Voltage: 2x DGX Compliant Bus Bar connectors, 40V Ā 60V input voltage
Global Power Consumption: Max power with active cables: TBD
Main Devices
CPU: Intel CFL 4 cores i3-8100H 3GHz
Switch: Quantum-3
Throughput
Switching: 115.2 Tbps
Speed: 400/800Gb/s per port<
Mechanical
Size: 4U, 6.89" (H) x 17.24" (W) x 33.07" (D)
Mounting: 19Ā rack mount
Weight: 57.20 kg
Speed: 400, 800Gb/s per port
Connector cage: 144 MPO connectors
Liquid cooling connection type: 4xUDQ4
