NVIDIA Mellanox MTEF-PSF-AC-C 1100W AC Hot-Swap Power Supply Unit, P2C Airflow: This is a 1100W AC-input, hot-swappable, field-replaceable power supply unit (FRU) for NVIDIA Mellanox 1U switch chassis. The MTEF-PSF-AC-C (NVIDIA P/N 930-9BPSU-00JZ-000) provides P2C (Port-to-Connector) airflow and is intended as a paired or redundant PSU in switches that ship with two PSU bays. This is not a stand-alone benchtop power brick and is not compatible with C2P (reverse) airflow systems. This is a refurbished unit.
Engineering Context
The MTEF-PSF-AC-C delivers 1100W of continuous power and is designed for hot-swap insertion without taking the switch chassis offline, provided the second PSU bay is populated and active. P2C airflow direction means air enters at the port (front) face of the switch and exhausts at the connector (rear) side, matching the cold-aisle / hot-aisle convention used in most modern data centers. The PSU includes universal AC input for international deployment. Airflow direction must match the system fan modules in the same chassis — mixing P2C and C2P modules is not supported.
Deployment & Use Cases
Redundant power for NVIDIA Mellanox Quantum HDR switches (QM8700, QM8790) running in 2N PSU configuration. Replacement spare for failed PSUs in production HPC and AI fabrics. Replacement PSU for Spectrum Ethernet switches (SN3700, SN3800, SN4600C) in cold-aisle / hot-aisle data center deployments. Field-stocking spare for service teams supporting 1U switch fleets.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MTEF-PSF-AC-C
NVIDIA Alt P/N: 930-9BPSU-00JZ-000
Power Output: 1100W AC
Airflow Direction: P2C (Port-to-Connector)
Form Factor: Hot-swappable PSU module for 1U switch chassis
Input: Universal AC
Redundancy: Supports 1+1 PSU redundancy in dual-bay chassis
Hot-Swap: Yes — replaceable without switch power-down when paired PSU is online
Condition: Refurbished — tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Compatible with NVIDIA Mellanox Quantum HDR switches QM8700 / QM8790 and Spectrum Ethernet switches SN3700, SN3800, SN4600C. The PSU airflow direction (P2C) must match the airflow direction of the fan modules in the same chassis — do not mix P2C PSUs with C2P fan modules. Not interchangeable with -R (reverse / C2P airflow) PSU SKUs. Not a DC-input PSU; only AC mains supported. Not intended for non-Mellanox chassis or generic 1U servers. Refurbished condition is verified for output regulation and fan operation but cosmetic wear may be present.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS load-tests every PSU under sustained AC input and verifies fan, alarm, and hot-swap signaling before shipment. We provide expert consultation on Mellanox switch FRU sourcing and ship globally with 1–3 day handling time. Visit tes-itsolutions.com for the full NVIDIA Mellanox catalog.