NVIDIA Mellanox MTEF-PSF-AC-F 1500W AC Power Supply Unit, P2C Airflow (NVIDIA P/N 930-9NPSU-00J2-000): This is a hot-swappable AC power supply module for NVIDIA Mellanox MSN3930, MSN4600, and MSN4700 series Ethernet switches. The PSU delivers 1500W of output and uses Power-to-Connector (P2C) airflow direction. This is a hot-swap PSU module, not a chassis-integrated power source and not a DC-input variant. This is a refurbished unit.
Engineering Context
The MTEF-PSF-AC-F provides 1500W of regulated DC output to the switch backplane from AC mains input. The wattage class supports the higher port density and ASIC power budgets of the MSN3930 (Spectrum-2), MSN4600 (Spectrum-3), and MSN4700 (Spectrum-3) chassis. The P2C (Power-to-Connector) airflow direction matches switches built for reverse-airflow rack deployments, where cool air enters the rear power side and exits the front connector side. Hot-swap capability allows replacement of a failed PSU without disrupting switch operation, supporting redundant 1+1 PSU pair operation. NVIDIA part number 930-9NPSU-00J2-000 identifies this exact SKU in procurement and inventory systems.
Deployment & Use Cases
Replacement PSU for MSN3930, MSN4600, and MSN4700 switches in reverse-airflow rack rows. Stocking spare for N+1 hot-spare programs in production data centers running Spectrum-2 or Spectrum-3 fabrics. Field replacement during planned maintenance windows where redundant PSU pair operation must be preserved. Lab and staging refresh where matched airflow direction across all chassis is required to keep a consistent thermal profile.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MTEF-PSF-AC-F
NVIDIA P/N: 930-9NPSU-00J2-000
Module Type: Hot-swappable AC PSU
Output Power: 1500W
Input: AC mains
Airflow Direction: P2C (Power to Connector)
Compatible Switches: MSN3930, MSN4600, MSN4700
Form Factor: Hot-swap PSU module
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Mellanox MSN3930, MSN4600, and MSN4700 Ethernet switches. Must be paired with matching P2C-airflow fan modules in the same chassis — Mellanox does not support mixing P2C and C2P modules within a single switch. Not compatible with switch chassis requiring C2P (Connector-to-Power) airflow. Not a DC-input PSU variant. Not interchangeable with the lower-wattage MTEF-PSF-AC-E (550W) or higher-wattage MTEF-PSF-AC-K (2000W) units used by other Mellanox switch families. Verify chassis airflow orientation and switch model before installation.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every Mellanox PSU module under load before shipment, verifying output regulation, fan operation, and status LED behavior. Visit tes-itsolutions.com for the full Mellanox switch accessory catalog. Handling time is 1–3 business days with global shipping.