The NVIDIA Mellanox MTDF-FAN-A is a hot-swappable fan tray for the CS7500-family InfiniBand director chassis. This is NOT a generic server fan and NOT a switch chassis fan for fixed pizza-box switches; it is a director-system cooling module engineered specifically for the high-airflow demands of large multi-blade Mellanox director switches. MPN: MTDF-FAN-A. Condition: Refurbished, tested for RPM range and bearing health at T.E.S IT-SOLUTIONS.
Engineering context. Director chassis dissipate hundreds of watts per blade at peak load. The MTDF-FAN-A drives front-to-back airflow across the leaf side of the chassis to extract heat from the switch blades, management modules, and backplane. The unit is hot-pluggable for online replacement during a fan failure, and it is RoHS 6 compliant. Fan trays are normally deployed in N+1 redundancy across the chassis.
Deployment and use cases. Used to keep CS7500-family director switches within thermal envelope in HPC fabrics, large InfiniBand SAN backbones, AI training clusters, EDA compute grids, and any multi-rack supercomputing environment where sustained 100% line-rate traffic generates continuous high heat load on the spine and leaf blades.
Technical specifications:
Model: MTDF-FAN-A
Type: Director system fan unit (leaf side)
Mounting: Hot-swappable fan tray
Compatibility: Mellanox CS7500-family director chassis
Airflow direction: Front-to-back
Compliance: RoHS 6
Condition: Refurbished, tested
Compatibility and constraints. Compatible only with the CS7500-family director chassis. NOT compatible with SX6000-series fixed switches, ConnectX adapters, or rack-mount 1U switches. The leaf-side and spine-side fan slots in the chassis are distinct — verify the specific slot the MTDF-FAN-A is rated for before installation. Buyer is responsible for confirming chassis revision and the existing fan tray inventory.
Why TES. T.E.S IT-SOLUTIONS keeps stock of refurbished Mellanox director-system spares including MTDF-FAN-A, replacement PSUs, management modules, and switch blades. Every fan unit is RPM-tested before shipment. Standard handling time is 1–3 business days. Visit tes-itsolutions.com for the broader CS7500 spares catalogue.