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NVIDIA Mellanox MMS4X90-NR 2 × 400G LR4 OSFP twin-port 1310nm 10 km SMF
2 × 400 Gbps (8 × 100G PAM4) 2 × 400G LR4 OSFP twin-port transceiver, 1310 nm band, up to 10 km SMF, InfiniBand and Ethernet. NVIDIA SKU 980-9IB70-00YL00.
- Manufacturer
- NVIDIA Corporation (Mellanox)
- Mfr part number
- MMS4X90-NR
- NVIDIA SKU
- 980-9IB70-00YL00
- Series
- LinkX 800G OSFP twin-port
- Category
- Fiber optic transceiver modules
- Datasheet
- MMS4X90-NR datasheet (PDF)
MMS4X90-NR specifications
| Attribute | Value |
|---|---|
| Part Number | MMS4X90-NR |
| Manufacturer | NVIDIA Corporation (Mellanox Technologies) |
| Brand | NVIDIA Mellanox |
| NVIDIA SKU | 980-9IB70-00YL00 |
| Standard | 2 × 400G LR4 (2 × NDR / 2 × 400GbE), 10 km |
| Form Factor | OSFP twin-port, finned top, hot-swappable |
| Data Rate | 2 × 400 Gbps (8 × 100G PAM4) |
| Protocol | InfiniBand and Ethernet |
| Wavelength | 1310 nm band (CWDM4 grid, 2 × 4 lanes) |
| Media | Single-mode fiber (OS2) |
| Max Distance | 10 km SMF |
| Connector | 2 × duplex LC |
| Breakout | 2 × 400G LR4 |
| 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 10 km on single-mode fiber per port (NVIDIA's spec page also quotes 2 km; the ordering page lists 10 km) |
| Ordering note | NVIDIA's older spec page shows the MMS4X50-NM table under this name; the current ordering page lists 10 km. |
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 MMS4X90-NR
The NVIDIA Mellanox MMS4X90-NR is a hot-swappable OSFP twin-port 2 × 400G LR4 optical transceiver for 2 × 400 Gbps InfiniBand and Ethernet links over single-mode fiber, with a 2 × duplex LC interface and reach of up to 10 km SMF. It is the long-reach 800G switch optic: two 400G LR4 links on duplex LC single-mode pairs for data-center-interconnect and campus distances up to 10 km. Breakout: 2 × 400G LR4. 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 LR4 up to 10 km SMF
- NVIDIA LinkX 800G twin-port OSFP 2×LR4, 10 km over duplex LC
- Two 400G links for DCI and campus-scale NDR / 400GbE
- 2 × duplex LC connector · Single-mode fiber
- Genuine NVIDIA Mellanox part · GST invoice · pan-India dispatch
MMS4X90-NR: frequently asked questions
What is the NVIDIA Mellanox MMS4X90-NR?
The MMS4X90-NR is an OSFP twin-port 2 × 400G LR4 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 MMS4X90-NR?
NVIDIA's current ordering number for the MMS4X90-NR is 980-9IB70-00YL00. Newer NVIDIA price lists, quotes and firmware support tables use this 980-/930- SKU, while older documents and most resellers use the legacy OPN MMS4X90-NR. They are the same module; quote either and we will match it.
What is the maximum distance of the MMS4X90-NR?
NVIDIA specifies the MMS4X90-NR for up to 10 km on single-mode fiber per port (NVIDIA's spec page also quotes 2 km; the ordering page lists 10 km).
Which fiber and connector does the MMS4X90-NR need?
The MMS4X90-NR uses a 2 × duplex LC connector on single-mode fiber (OS2), at 1310 nm band (CWDM4 grid, 2 × 4 lanes). Both ends of the link must use the same optical standard.
Does the MMS4X90-NR work for both InfiniBand and Ethernet?
Yes. NVIDIA qualifies the MMS4X90-NR for 2 × 400G LR4 (2 × NDR / 2 × 400GbE), 10 km, 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 MMS4X90-NR: finned, flat-top, IHS or RHS?
NVIDIA lists the MMS4X90-NR as OSFP twin-port, finned 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 MMS4X90-NR 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.
Does the MMS4X90-NR support breakout?
NVIDIA lists 2 × 400G LR4. Use the matching optics at the far end and a suitable splitter or breakout cable, and enable port splitting on the switch.
Anything to check before ordering the MMS4X90-NR?
NVIDIA's older spec page shows the MMS4X50-NM table under this name; the current ordering page lists 10 km.
Is your MMS4X90-NR 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 MMS4X90-NR price in India and how do I order?
The NVIDIA Mellanox MMS4X90-NR 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 980-9IB70-00YL00), 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_MMS4X90-NR_Datasheet_NextGenNetworks.pdfNVIDIA LinkX documentation
Manufacturer product pages
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