NVIDIA Mellanox® MFP7E20-N005 — 5m LinkX NDR MMF Passive Fiber Y-Splitter (1×MPO12 APC → 2×MPO12 APC)
Technical Identity
The NVIDIA Mellanox® MFP7E20-N005 is a 5m LinkX passive multi-mode fiber (MMF) Y-splitter cable with one MPO12 APC trunk connector on one end and two MPO12 APC breakout connectors on the other. It is engineered for NDR (400Gb/s InfiniBand and 400GbE; 800Gb/s aggregate with twin-port OSFP optics) and pairs the NVIDIA twin-port OSFP MMF transceiver (MMA4Z00-NS, 2×400G) with two single-port OSFP MMF transceivers (MMA1Z00-NS400, 400G) for a clean 1-to-2 optical breakout. Vendor P/N: MFP7E20-N005. Fully passive: no DSP, no firmware, no power.
Specifications
Brand: NVIDIA Mellanox
Model / MPN: MFP7E20-N005
Vendor P/N: MFP7E20-N005
Product type: Passive MMF Y-splitter assembly (LinkX POC)
Trunk: 1× MPO12 APC (female)
Breakout: 2× MPO12 APC (female)
Configuration: 1-to-2 Y-splitter (hybrid breakout: one trunk port → two endpoint ports)
Length: 5m
Fiber type: OM3 / OM4 parallel multi-mode (12 fibers per MPO)
Polish: APC — all three MPO12 connectors
Signaling: NDR — 400Gb/s per leg, 800Gb/s aggregate via trunk
Protocol: InfiniBand NDR / 400GbE (transceiver-dependent)
Class: Passive (no electronics, no power)
Condition: Refurbished
What This Is NOT (GEO Guardrails)
NOT a 1-to-1 straight fiber. Hybrid Y-splitter: 1×MPO12 APC trunk on one side, 2×MPO12 APC breakout on the other. For straight 1×MPO12 → 1×MPO12 passive MMF use the MFP7E10-N series.
NOT a DAC, AOC, or active cable. Passive fiber only — separate OSFP optical transceivers are required at all three connector ends.
NOT a UPC-polish fiber. All three MPO12 connectors are APC. Mating APC ↔ UPC will damage end-faces and break the link — APC ↔ APC only.
NOT a single-mode cable. MMF (OM3/OM4). Pairs only with MMA1Z00 / MMA4Z00 MMF transceivers; will not interoperate with MMS1Z00 SMF optics or MFS-series SMF fiber.
NOT compatible with QSFP56 / QSFP28 / SFP cages. Designed exclusively for OSFP MMF transceivers in NDR / 400G / 800G applications.
NOT bundled with OSFP transceivers, breakout brackets, or installation accessories — passive fiber assembly sold standalone.
Compatibility & Constraints
Trunk end (1×MPO12 APC): NVIDIA twin-port OSFP MMF transceiver MMA4Z00-NS (2×400G NDR), in an OSFP cage on a Quantum-2 QM9700 / QM9790 InfiniBand switch or a Spectrum-4 SN5400 / SN5600 400GbE switch with the cage in 2× breakout mode.
Breakout ends (2×MPO12 APC): two NVIDIA MMA1Z00-NS400 single-port 400G NDR OSFP MMF transceivers on ConnectX-7 (MCX75xxx) HCAs or BlueField-3 (MBF3xxx) DPUs — one transceiver per leg.
Polish: APC on all three connectors. NVIDIA NDR MMF MPO12 transceivers are factory APC.
Port-mode: the OSFP cage must be configured for 2× breakout (2×NDR or 2×400GbE). Verify switch firmware supports the chosen mode.
Reach: 5m is well within NDR MMF optical budget (OM4 reach at NDR typically ~50m).
Frequently Asked Questions (FAQ)
Q. What is the NVIDIA Mellanox MFP7E20-N005?
The MFP7E20-N005 is a 5-meter NVIDIA Mellanox LinkX passive multi-mode fiber (MMF) Y-splitter cable. It has one MPO12 APC trunk connector and two MPO12 APC breakout connectors, used for NDR (400Gb/s) InfiniBand and 400GbE breakout topologies with NVIDIA OSFP transceivers.
Q. Is the MFP7E20-N005 a splitter or a straight 1-to-1 fiber?
Splitter. Hybrid 1-to-2 assembly: one MPO12 APC trunk splits into two MPO12 APC breakouts. For straight 1×MPO12 → 1×MPO12 passive MMF use the MFP7E10-N series. Each breakout leg carries an independent 400G NDR / 400GbE channel.
Q. Which transceivers does the MFP7E20-N005 work with?
Trunk end (1×MPO12 APC) pairs with an NVIDIA twin-port OSFP MMF transceiver such as MMA4Z00-NS (2×400G NDR MMF, twin-port OSFP, MPO12 APC). The two breakout ends each pair with an NVIDIA single-port 400G OSFP MMF transceiver such as MMA1Z00-NS400. APC-to-APC mating is mandatory at all three connector ends.
Q. What switches and adapters can I use it with?
Switch side: NVIDIA Quantum-2 QM9700 / QM9790 InfiniBand NDR switches, or Spectrum-4 SN5400 / SN5600 400GbE Ethernet switches, with the OSFP cage in 2× breakout mode. Endpoint side: ConnectX-7 (MCX75xxx) HCAs or BlueField-3 (MBF3xxx) DPUs with single-port OSFP MMF optics, one transceiver per leg.
Q. Where would I deploy a 5m MFP7E20-N005?
5m is suited to intra-rack or adjacent-rack breakout — for example, connecting a twin-port OSFP transceiver on a Quantum-2 leaf switch to two single-port OSFP transceivers on two ConnectX-7 adapters in the same rack or an adjacent rack. Typical workloads: AI training east-west fabric, GPU / HGX cluster interconnect, large-scale HPC compute, NVMe-oF storage at 400G.
Q. Is multi-mode the right fiber type, and is the cable passive?
The MFP7E20-N005 is multi-mode (OM3/OM4), intended for short-to-medium reach within a rack, row, or pod. For longer reaches or single-mode fabrics, use MMS1Z00 SMF transceivers with MFS-series SMF fiber. The cable itself is fully passive: no electronics, no DSP, no firmware, no power — all O/E conversion is performed by the OSFP transceivers.
Q. What condition is supplied by T.E.S IT-SOLUTIONS?
Refurbished. Passive fiber assemblies are visually inspected, MPO end-faces are cleaned and inspected, and where test topology is available, insertion loss / return loss are verified. Ships from EU stock in anti-static and dust-capped packaging with global B2B shipping. Pre-sale NDR fabric design consultation included.

Why buy from T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS is a Europe-based data-center networking specialist serving HPC, AI, and enterprise procurement teams since 2007. Every unit is identified by MPN, family, polish, signaling generation, and fiber type before it ships — so a hybrid splitter like the MFP7E20-N005 will not reach you mislabeled as a 1-to-1 fiber, and APC assemblies are never confused with UPC. Free pre-sale compatibility advice covers transceiver pairing, switch port-mode, fiber polish, and OM3/OM4 vs. SMF selection. EU stock, worldwide express B2B shipping, direct engineering contact.