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NVIDIA Mellanox T-DQ8FNS-N00-M 400GBASE-SR8 QSFP-DD 850nm 100 m OM4
400 Gbps (8 × 50G PAM4) 400GBASE-SR8 QSFP-DD transceiver, 850 nm, up to 100 m OM4, Ethernet. NVIDIA SKU 980-9I530-00W000.
- Manufacturer
- NVIDIA Corporation (Mellanox)
- Mfr part number
- T-DQ8FNS-N00-M
- NVIDIA SKU
- 980-9I530-00W000
- Series
- LinkX 400G QSFP-DD
- Category
- Fiber optic transceiver modules
- Datasheet
- T-DQ8FNS-N00-M datasheet (PDF)
T-DQ8FNS-N00-M specifications
| Attribute | Value |
|---|---|
| Part Number | T-DQ8FNS-N00-M |
| Manufacturer | NVIDIA Corporation (Mellanox Technologies) |
| Brand | NVIDIA Mellanox |
| NVIDIA SKU | 980-9I530-00W000 |
| Standard | 400GBASE-SR8 |
| Form Factor | QSFP-DD, hot-swappable |
| Data Rate | 400 Gbps (8 × 50G PAM4) |
| Protocol | Ethernet |
| Wavelength | 850 nm |
| Media | Multimode fiber (OM3/OM4) |
| Max Distance | 100 m OM4 |
| Connector | MPO-16/APC |
| Breakout | 2 × 200G SR4 or 8 × 50G SR with MPO-16 breakout cabling |
| Lifecycle | Listed in NVIDIA support tables (confirm availability) |
| Case Temp | 0 °C to 70 °C (commercial) |
| Dimensions | 8.5 × 18.4 × 78–93 mm |
| Compliance | IEEE 802.3, QSFP-DD MSA, CMIS |
| Reach detail | up to 100 m on OM4 multimode fiber |
| Ordering note | Innolight-format part number listed by NVIDIA. |
| Part-number note | Innolight-format P/N |
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 T-DQ8FNS-N00-M
The NVIDIA Mellanox T-DQ8FNS-N00-M is a hot-swappable QSFP-DD 400GBASE-SR8 optical transceiver for 400 Gbps Ethernet links over multimode fiber, with an MPO-16/APC interface and reach of up to 100 m OM4. It is a 400GbE QSFP-DD SR8 that NVIDIA lists under SKU 980-9I530-00W000 for Spectrum-3 switches: eight 50G PAM4 lanes over an MPO-16 multimode trunk, with breakout to 2 × 200G SR4 or 8 × 50G. Breakout: 2 × 200G SR4 or 8 × 50G SR with MPO-16 breakout cabling. Typical uses: NDR InfiniBand and 400GbE AI/HPC fabrics on ConnectX-7, BlueField-3, Quantum-2 and Spectrum-4.
- 400 Gbps 400GBASE-SR8 up to 100 m OM4
- 400GbE QSFP-DD SR8 listed in NVIDIA's parts list (Innolight-format P/N)
- 8 × 50G lanes over MPO-16 multimode; 2 × 200G / 8 × 50G breakout
- MPO-16/APC connector · Multimode fiber
- Genuine NVIDIA Mellanox part · GST invoice · pan-India dispatch
T-DQ8FNS-N00-M: frequently asked questions
What is the NVIDIA Mellanox T-DQ8FNS-N00-M?
The T-DQ8FNS-N00-M is a QSFP-DD 400GBASE-SR8 module from NVIDIA's LinkX range for 400 Gbps Ethernet links. It plugs into a QSFP-DD port on an NVIDIA / Mellanox switch, adapter or DPU and is used for NDR InfiniBand and 400GbE AI/HPC fabrics on ConnectX-7, BlueField-3, Quantum-2 and Spectrum-4.
What is the NVIDIA SKU for the T-DQ8FNS-N00-M?
NVIDIA's current ordering number for the T-DQ8FNS-N00-M is 980-9I530-00W000. Newer NVIDIA price lists, quotes and firmware support tables use this 980-/930- SKU, while older documents and most resellers use the legacy OPN T-DQ8FNS-N00-M. They are the same module; quote either and we will match it.
What is the maximum distance of the T-DQ8FNS-N00-M?
NVIDIA specifies the T-DQ8FNS-N00-M for up to 100 m on OM4 multimode fiber.
Which fiber and connector does the T-DQ8FNS-N00-M need?
The T-DQ8FNS-N00-M uses a MPO-16/APC connector on multimode fiber (OM3/OM4), at 850 nm. 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.
Is the T-DQ8FNS-N00-M an Ethernet-only part?
Yes. NVIDIA lists the T-DQ8FNS-N00-M for Ethernet (400GBASE-SR8) use. For InfiniBand use the NDR / XDR qualified version of the same family.
Is the T-DQ8FNS-N00-M compatible with my NVIDIA / Mellanox switch or adapter?
It works in NVIDIA and Mellanox platforms with QSFP-DD 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 T-DQ8FNS-N00-M support breakout?
NVIDIA lists 2 × 200G SR4 or 8 × 50G SR with MPO-16 breakout cabling. 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 T-DQ8FNS-N00-M?
Innolight-format part number listed by NVIDIA.
Is your T-DQ8FNS-N00-M 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 T-DQ8FNS-N00-M price in India and how do I order?
The NVIDIA Mellanox T-DQ8FNS-N00-M 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 980-9I530-00W000), 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_T-DQ8FNS-N00-M_Datasheet_NextGenNetworks.pdfNVIDIA LinkX documentation
Manufacturer product pages
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