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NVIDIA Mellanox UL-SFP+-D-L-CH31 10G DWDM SFP+ DWDM CH 31 80 km SMF
10 Gbps 10G DWDM SFP+ transceiver, DWDM C-band, ITU channel 31, up to 80 km SMF, Ethernet.
- Manufacturer
- NVIDIA Corporation (Mellanox)
- Mfr part number
- UL-SFP+-D-L-CH31
- Series
- LinkX 10G SFP+
- Category
- Fiber optic transceiver modules
- Datasheet
- UL-SFP+-D-L-CH31 datasheet (PDF)
UL-SFP+-D-L-CH31 specifications
| Attribute | Value |
|---|---|
| Part Number | UL-SFP+-D-L-CH31 |
| Manufacturer | NVIDIA Corporation (Mellanox Technologies) |
| Brand | NVIDIA Mellanox |
| Standard | 10G DWDM (80 km) |
| Form Factor | SFP+, hot-swappable |
| Data Rate | 10 Gbps |
| Protocol | Ethernet |
| Wavelength | DWDM C-band, ITU channel 31 |
| Media | Single-mode fiber (OS2) |
| Max Distance | 80 km SMF |
| Connector | Duplex LC |
| Lifecycle | Legacy / end-of-life (stock on request) |
| Case Temp | 0 °C to 70 °C (commercial) |
| Dimensions | 8.5 × 13.4 × 56.5 mm |
| Compliance | IEEE 802.3, SFF-8431/8472 |
| Reach detail | up to 80 km on single-mode fiber in a DWDM system (with suitable mux/demux and link budget) |
| Ordering note | End-of-life MetroX part (NVIDIA LCR-000852). Other channels available on request. |
| Part-number note | MetroX DWDM module |
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 UL-SFP+-D-L-CH31
The NVIDIA Mellanox UL-SFP+-D-L-CH31 is a hot-swappable SFP+ 10G DWDM optical transceiver for 10 Gbps Ethernet links over single-mode fiber, with a Duplex LC interface and reach of up to 80 km SMF. It is a Mellanox MetroX long-haul optic: a fixed-wavelength DWDM SFP+ on ITU C-band channel 31, used in MetroX long-haul InfiniBand/Ethernet extension systems and DWDM metro links up to 80 km. Typical uses: 10GbE server access, storage networks, top-of-rack uplinks and campus / metro links.
- 10 Gbps 10G DWDM up to 80 km SMF
- Mellanox MetroX 10GbE DWDM SFP+, fixed ITU channel 31
- 80 km long-haul reach, C-band
- Duplex LC connector · Single-mode fiber
- Genuine NVIDIA Mellanox part · GST invoice · pan-India dispatch
UL-SFP+-D-L-CH31: frequently asked questions
What is the NVIDIA Mellanox UL-SFP+-D-L-CH31?
The UL-SFP+-D-L-CH31 is an SFP+ 10G DWDM module from NVIDIA's LinkX range for 10 Gbps Ethernet links. It plugs into an SFP+ / SFP28 port on an NVIDIA / Mellanox switch, adapter or DPU and is used for 10GbE server access, storage networks, top-of-rack uplinks and campus / metro links.
What is the maximum distance of the UL-SFP+-D-L-CH31?
NVIDIA specifies the UL-SFP+-D-L-CH31 for up to 80 km on single-mode fiber in a DWDM system (with suitable mux/demux and link budget).
Which fiber and connector does the UL-SFP+-D-L-CH31 need?
The UL-SFP+-D-L-CH31 uses a Duplex LC connector on single-mode fiber (OS2), at DWDM C-band, ITU channel 31. Both ends of the link must use the same optical standard.
Is the UL-SFP+-D-L-CH31 compatible with my NVIDIA / Mellanox switch or adapter?
It works in NVIDIA and Mellanox platforms with SFP+ / SFP28 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.
Can I use another channel number instead?
Only if your mux/demux has a port for that channel. DWDM channels are fixed wavelengths: CH31 must be paired with CH31 at the far end and with the matching mux port. Tell us the channel plan and we will supply the right one.
Is the UL-SFP+-D-L-CH31 still available?
NVIDIA has marked the UL-SFP+-D-L-CH31 legacy / end-of-life, so it is no longer in regular production. Next Gen Networks sources genuine new and surplus stock on request. End-of-life MetroX part (NVIDIA LCR-000852). Other channels available on request. Tell us the quantity and we will confirm availability, or suggest the current NVIDIA equivalent.
Is your UL-SFP+-D-L-CH31 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 UL-SFP+-D-L-CH31 price in India and how do I order?
The NVIDIA Mellanox UL-SFP+-D-L-CH31 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, 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_UL-SFPplus-D-L-CH31_Datasheet_NextGenNetworks.pdfNVIDIA LinkX documentation
Manufacturer product pages
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