NVIDIA Mellanox MTDF-PS-A 2500W AC Power Supply, 48VDC Output, P2C Airflow: This is a hot-swappable, high-capacity AC power supply (NVIDIA P/N 920-9IPN0-0000-031) for NVIDIA Mellanox CS7500 modular switch chassis and SN2000 series (Spectrum-2) systems. It delivers 2500W of AC-input power with a 48VDC output rail and P2C (Power-to-Connector) airflow. This is a field-replaceable PSU module, not a complete switch. This is a refurbished unit, tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MTDF-PS-A is sized for the Mellanox CS7500 InfiniBand director chassis and Spectrum-2 SN2000 series, both of which use 48VDC backplane power and accept multiple PSU modules for N+N redundancy. The 2500W rating supports fully populated line-card chassis under sustained load. The P2C airflow direction must match every other PSU and fan module installed in the chassis; mixing airflow directions is not supported and will be flagged by chassis management.
Deployment & Use Cases
Replacement PSU for production Mellanox CS7500 InfiniBand director chassis and SN2000 Spectrum-2 spine switches. Spare inventory for N+N redundancy maintenance. Lifecycle replacement for switches with PSUs at end of warranty. Used in large-scale AI training fabrics, HPC clusters, and hyperscale data center spine layers.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MTDF-PS-A
NVIDIA P/N: 920-9IPN0-0000-031
Type: Hot-Swap Power Supply Unit
Power Output: 2500W
Input: AC
Output Voltage: 48VDC
Airflow: P2C (Power-to-Connector)
Listed Compatibility: Mellanox CS7500 Chassis, SN2000 (Spectrum-2)
Redundancy Mode: N+N
Condition: Refurbished
Compatibility & Constraints
Listed for NVIDIA Mellanox CS7500 modular chassis and SN2000 series (Spectrum-2) configured for P2C airflow. Requires the chassis to accept the MTDF-PS series; this is not a generic 48V PSU. Not compatible with C2P airflow chassis configurations. Not interchangeable with the smaller MTEF-PSR or MTEF-PSF series. Always confirm the target chassis revision against the Mellanox compatibility matrix before swapping.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS performs load-bench testing on every refurbished PSU and verifies hot-swap and fault behavior before shipment. We support enterprise data center customers with global shipping and a standard handling time of 1 to 3 business days. More information at https://www.tes-itsolutions.com.