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NVIDIA Mellanox MMS4X00-NM-FLT 2 × 400G DR4 OSFP twin-port 1310nm 500 m SMF
2 × 400 Gbps (8 × 100G PAM4) 2 × 400G DR4 OSFP twin-port transceiver, 1310 nm, up to 500 m SMF, InfiniBand and Ethernet. NVIDIA SKU 980-9I301-00NM00.
- Manufacturer
- NVIDIA Corporation (Mellanox)
- Mfr part number
- MMS4X00-NM-FLT
- NVIDIA SKU
- 980-9I301-00NM00
- Series
- LinkX 800G OSFP twin-port
- Category
- Fiber optic transceiver modules
- Datasheet
- MMS4X00-NM-FLT datasheet (PDF)
MMS4X00-NM-FLT specifications
| Attribute | Value |
|---|---|
| Part Number | MMS4X00-NM-FLT |
| Manufacturer | NVIDIA Corporation (Mellanox Technologies) |
| Brand | NVIDIA Mellanox |
| NVIDIA SKU | 980-9I301-00NM00 |
| Standard | 2 × 400G DR4 (2 × NDR / 2 × 400GbE) |
| Form Factor | OSFP twin-port, flat top, hot-swappable |
| Data Rate | 2 × 400 Gbps (8 × 100G PAM4) |
| Protocol | InfiniBand and Ethernet |
| Wavelength | 1310 nm (8 parallel lanes) |
| Media | Single-mode fiber (OS2) |
| Max Distance | 500 m SMF |
| Connector | 2 × MPO-12/APC (single-mode) |
| Breakout | 2 × 400G DR4 |
| Lifecycle | Current NVIDIA part |
| Case Temp | 0 °C to 70 °C (commercial) |
| Dimensions | 13.0 × 22.6 × 100.4 mm (OSFP; flat-top ~9.5 mm) |
| Compliance | IEEE 802.3 / IBTA, OSFP MSA, CMIS |
| Reach detail | up to 500 m on single-mode fiber per port |
Values are from NVIDIA's LinkX product pages, ordering tables and firmware 'validated and supported cables and modules' lists (Oct 2026). Confirm platform and firmware support for your switch or adapter with us before ordering.
About the NVIDIA Mellanox MMS4X00-NM-FLT
The NVIDIA Mellanox MMS4X00-NM-FLT is a hot-swappable OSFP twin-port 2 × 400G DR4 optical transceiver for 2 × 400 Gbps InfiniBand and Ethernet links over single-mode fiber, with a 2 × MPO-12/APC interface and reach of up to 500 m SMF. It is the flat-top version of MMS4X00-NM for riding-heat-sink cages in DGX systems, liquid-cooled switches and twin-port adapter cages. Twin-port OSFP optics carry two independent 400G links in one OSFP cage: each MPO-12/APC port links to a single-port 400G optic (MMS4X00-NS400 / MMA4Z00-NS400 class) at the adapter end, or to another twin-port optic switch-to-switch. Breakout: 2 × 400G DR4. Typical uses: NDR / XDR InfiniBand and 400GbE / 800GbE AI back-end fabrics on Quantum-2, Quantum-X800, Spectrum-4 and Spectrum-X.
- 2 × 400 Gbps 2 × 400G DR4 up to 500 m SMF
- Flat-top (-FLT) 800G twin-port OSFP 2×DR4 for riding-heat-sink cages
- DGX / liquid-cooled Quantum-2 / ConnectX-7 twin-port use
- 2 × MPO-12/APC connector · Single-mode fiber
- Genuine NVIDIA Mellanox part · GST invoice · pan-India dispatch
MMS4X00-NM-FLT: frequently asked questions
What is the NVIDIA Mellanox MMS4X00-NM-FLT?
The MMS4X00-NM-FLT is an OSFP twin-port 2 × 400G DR4 module from NVIDIA's LinkX range for 2 × 400 Gbps InfiniBand and Ethernet links. It plugs into an OSFP port on an NVIDIA / Mellanox switch, adapter or DPU and is used for NDR / XDR InfiniBand and 400GbE / 800GbE AI back-end fabrics on Quantum-2, Quantum-X800, Spectrum-4 and Spectrum-X.
What is the NVIDIA SKU for the MMS4X00-NM-FLT?
NVIDIA's current ordering number for the MMS4X00-NM-FLT is 980-9I301-00NM00. Newer NVIDIA price lists, quotes and firmware support tables use this 980-/930- SKU, while older documents and most resellers use the legacy OPN MMS4X00-NM-FLT. They are the same module; quote either and we will match it.
What is the maximum distance of the MMS4X00-NM-FLT?
NVIDIA specifies the MMS4X00-NM-FLT for up to 500 m on single-mode fiber per port.
Which fiber and connector does the MMS4X00-NM-FLT need?
The MMS4X00-NM-FLT uses a 2 × MPO-12/APC (single-mode) connector on single-mode fiber (OS2), at 1310 nm (8 parallel lanes). APC connectors have an angled (green) end-face, so use APC patch cords and MPO trunks; a UPC cord will not mate correctly. Both ends of the link must use the same optical standard.
Does the MMS4X00-NM-FLT work for both InfiniBand and Ethernet?
Yes. NVIDIA qualifies the MMS4X00-NM-FLT for 2 × 400G DR4 (2 × NDR / 2 × 400GbE), so the same module runs in InfiniBand mode on Quantum / Switch-IB ports and ConnectX VPI adapters, and in Ethernet mode on Spectrum switches and ConnectX Ethernet ports. The port decides the protocol; the optic does not need to change.
Which housing is the MMS4X00-NM-FLT: finned, flat-top, IHS or RHS?
NVIDIA lists the MMS4X00-NM-FLT as OSFP twin-port, flat top. Finned / IHS housings go in air-cooled switch cages with open OSFP slots; flat-top / RHS housings go in cages that carry their own heat-sink (ConnectX adapters, DGX / GB-series trays, liquid-cooled switches). Fit the housing to the cage, otherwise the module will not seat or cool properly.
Is the MMS4X00-NM-FLT compatible with my NVIDIA / Mellanox switch or adapter?
It works in NVIDIA and Mellanox platforms with OSFP ports that list this part in their firmware 'validated and supported cables and modules' table. Send us your switch / adapter model and firmware version and we check it against NVIDIA's support list before dispatch, so you only receive a module that links up in your port.
Finned top or flat top: which MMS4X00 / MMA4Z00 do I need?
Finned-top (no suffix) twin-port OSFPs are for switch ports with open OSFP cages (Quantum-2 QM9700/9790, Spectrum-4 SN5600). Flat-top (-FLT) versions are for riding-heat-sink cages on ConnectX-7 / BlueField-3 adapters, DGX systems and some liquid-cooled switches. Same optics, different housing; the wrong housing will not seat or will overheat. Tell us the system and we will match it.
Does the MMS4X00-NM-FLT support breakout?
NVIDIA lists 2 × 400G DR4. Use the matching optics at the far end and a suitable splitter or breakout cable, and enable port splitting on the switch.
Is your MMS4X00-NM-FLT genuine NVIDIA / Mellanox?
Yes. Next Gen Networks supplies original NVIDIA (Mellanox) LinkX parts, not third-party lookalikes or grey-market stock. Every unit is checked before dispatch and we share serial numbers on request so you can verify them with mlxlink / mlxcables or the switch's transceiver inventory.
What is the MMS4X00-NM-FLT price in India and how do I order?
The NVIDIA Mellanox MMS4X00-NM-FLT price in India depends on quantity, delivery city and current stock. Next Gen Networks supplies it with a GST invoice (input tax credit ready) and pan-India dispatch from New Delhi. Send the part number (or NVIDIA SKU 980-9I301-00NM00), quantity and delivery city on WhatsApp +91-7827955775 or email Sales@nextgennetworks.in and we reply with a GST quote.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideDownload datasheet
Mellanox_MMS4X00-NM-FLT_Datasheet_NextGenNetworks.pdfNVIDIA LinkX documentation
Manufacturer product pages
Related NVIDIA Mellanox parts
MMS4X00-NM2 × 400G DR4, 500 m SMFMMS4X00-NM-T2 × 400GBASE-DR4, 500 m SMFMMS4X00-NM-HGX2 × 400G DR4, 500 m SMFMMS4X00-NM16800GBASE-DR8, 500 m SMFMMS4X00-NS2 × 400G DR4, 100 m SMFMMS4X00-NS-FLT2 × 400G DR4, 100 m SMFAI / HPC cluster, government, PSU and enterprise orders welcome. GST invoice and pan-India delivery.
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