Product reference illustration, not a photograph of the offered stock. Connector, cooling and length variants are defined by the exact part number.
OPTICAL TRANSCEIVER
NVIDIA MMA4Z00-NS400-T 400G Single-port Flat-top OSFP Transceiver
MMA4Z00-NS400-T specifications
| Form Factor | OSFP |
|---|---|
| Wavelength | 850NM |
| Connector | MPO-12/APC |
| Brand | NVIDIA |
| Model | MMA4Z00-NS400-T |
| Ports | SINGLE PORT |
| Reach | Up to 30 m OM3 or 50 m OM4; 50 m OM4 assumes two optical patch panels |
| Polish | APC |
| Cooling | FLAT TOP |
| Condition | New |
| Data Rate | 400G |
| Fiber Type | Multimode fiber |
| Part Number | MMA4Z00-NS400-T |
| Ordering Number | 980-9I51S-F4NS00 |
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.
MMA4Z00-NS400-T is an Ethernet 400G SR4 single-port OSFP transceiver with an MPO-12/APC interface. NVIDIA specifies up to 30 m on OM3 or 50 m on OM4 multimode fiber.
Qualify the flat-top cage and channel
Its four channels use 100G-PAM4. The flat-top shell relies on the heatsink on the ConnectX-7 OSFP cage; an OSFP-shaped port alone does not establish host or cooling support. The documented 50 m OM4 channel assumes two optical patch panels.
Keep endpoint and breakout modes explicit
Confirm the exact host, firmware, opposite transceiver and lane mapping before selecting a cable. NVIDIA describes a 200G mode on a two-channel splitter branch; this does not establish compatibility with every 200G module. Its APC interface must not be directly mated to a UPC connector.
Selection questions
Can the flat-top module be selected by port shape alone?
No. Verify the actual cage cooling arrangement, supported Ethernet mode and firmware. Keep the exact -T part number on the link schedule.
Manufacturer references
Product questions & answers
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.
980-9I51S-F4NS00
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.



