NVIDIA Mellanox MFP7E20-N003 Passive Splitter Fiber Cable, MPO12 APC to 2×MPO12 APC, 400Gb/s NDR, MMF, 3m: This is a 3-meter passive multi-mode fiber (MMF) splitter cable engineered for 400Gb/s NDR InfiniBand and Ethernet point-to-multipoint interconnect. The MFP7E20-N003 is a passive optical fiber assembly that requires pluggable multi-mode transceivers on both ends — it is not an active optical cable (AOC) and contains no integrated optics. This is a new (factory-sealed) unit.
Engineering Context
The MFP7E20-N003 splits a single MPO12 APC port on the switch side into two MPO12 APC ports on the host side, enabling a 1:2 port breakout topology for short reach (in-rack and adjacent-rack) deployments. Multi-mode fiber construction is matched to short-reach VCSEL-based SR optics, which provide a lower cost-per-port than single-mode DR optics. The APC end-faces minimise return loss and meet NVIDIA fabric specifications. The cable is fixed at 3m and is not field-terminable.
Deployment & Use Cases
Connecting a single 400Gb/s NDR switch port to two 200Gb/s NDR200 host adapters across short distances within a rack or row. Breakout cabling for ConnectX-7 and BlueField-3 hosts paired with Quantum-2 NDR switches. AI training and HPC fabrics where 1:2 splitting reduces switch port count over MMF reach budgets. Top-of-rack to server interconnects in dense GPU compute racks.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MFP7E20-N003
Form Factor: MPO12 APC to 2× MPO12 APC (passive splitter)
Data Rate: 400Gb/s NDR (splittable to 2× 200Gb/s NDR200)
Cable Type: Multi-Mode Fiber (MMF), passive
Length: 3m
Protocol: InfiniBand NDR / 400GbE Ethernet
Connector End-Face: APC (Angled Physical Contact)
Condition: New — factory-sealed, tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Designed to pair with NVIDIA MMA4Z00-NS twin-port OSFP SR8 multi-mode transceivers on the switch side, and OSFP/QSFP112 single-port SR4 transceivers on the host side. Compatible with NVIDIA Quantum-2 (QM9700, QM9790) and Spectrum-4 (SN5000 series) switches when configured for 1:2 splitter mode. Not compatible with single-mode (SMF) DR transceivers — using DR optics on this MMF cable will not link. Not compatible with copper DAC or AOC ports; pluggable multi-mode optical transceivers are mandatory. Not field-terminable; fixed 3m length.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS inspects MPO end-faces and verifies optical insertion loss on every passive fiber assembly before shipment. We provide expert consultation on NDR fabric breakout design and ship globally with 1–3 day handling time. Visit tes-itsolutions.com for the full NVIDIA Mellanox catalog.