Model reference image, not a photograph of this new-stock batch.
OPTICAL TRANSCEIVER
MMA4Z00-NS
NVIDIA MMA4Z00-NS 800(2x400)Gbps OSFP Optical Transceiver
MMA4Z00-NS specifications
| Form Factor | OSFP |
|---|---|
| Wavelength | 850nm |
| Connector | 2x MPO-12 APC |
| Media | 850nm VCSEL multimode, 2xSR4; separate crossover fibers needed |
| Brand | NVIDIA |
| Model | MMA4Z00-NS |
| Ports | twin port |
| Power | 17 W maximum; 2 W low-power mode |
| Reach | 50 m |
| Polish | APC |
| Cooling | finned |
| Condition | New |
| Data Rate | 800(2x400)Gbps |
| Connectors | twin-port OSFP electrical; 2 x MPO12/APC optical |
| Fiber Type | Multimode fiber |
| Part Number | MMA4Z00-NS |
| Branch count | 2 |
| Lane mapping | 8 x 100G-PAM4 electrical; two 4 x 100G-PAM4 optical groups |
| Wavelength nm | 850 |
| Thermal profile | finned-top OSFP |
| Interconnect type | optical_transceiver |
| Branch data rate (Gb/s) | 400 |
| Aggregate data rate (Gb/s) | 800 |
| Case temperature (degrees C) | 0 to 70 |
| Manufacturer lifecycle phase | MP |
Before you order
- Confirm the exact SKU, part number, specification option and quantity.
- Confirm the host platform, port, electrical interface and firmware requirements.
- Confirm availability, lead time, destination and applicable service terms before payment.
Product questions & answers
Is it safe to look into a connected optical port?
No. Never look directly into an energized optical port or connected fiber; its infrared light can be invisible.
Is MMA4Z00-NS one 800G optical port?
No. It is one OSFP module with two separate 400G optical ports, each using an MPO12/APC connector.
What fiber and reach are specified?
It uses 850 nm multimode 2xSR4 optics. Product specifications give 30 m on OM3 and 50 m on OM4; confirm the actual system and firmware for the planned reach.
Can one optical port use a straight cable and the other a splitter?
NVIDIA’s overview says no. Both connections must use the same straight-versus-splitter arrangement; compatible endpoint optics are separately required.
Can this finned module be treated as a DGX flat-top module?
No. MMA4Z00-NS is the finned switch-side version. -NS-FLT and -NS400 are different products. New and Used website offerings also remain separate commercial records.
How should detachable optical connectors be cleaned?
Use a connector-appropriate fiber cleaning tool on both mating surfaces before connecting them. Keep protective caps when disconnected.
Channel and project resources
Move your next customer decision forward
Start with your current portfolio, a product family or an incomplete project list. Choose the material that fits your responsibility.
OA03 · NVIDIA
AI Ethernet, adapters and optical or cable interconnects.
980-9I510-00NS00
BOM and open-items review
Keep the original part numbers and quantities together with the questions that affect a project decision.
- Start with
- Your existing list, uploaded BOM or a short description of the requirement. Incomplete lists are welcome.
- Use this to prepare
- An open-items table with original line references, missing inputs, responsible people and next actions.



