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NVIDIA MMA4Z00-NS400 400G OSFP SR4 multimode transceiver 4-channel 100G-PAM4
Product Details:
| Brand Name: | Mellanox |
| Model Number: | MMA4Z00-NS400 |
| Document: | MMA4Z00-NS400.pdf |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1pcs |
|---|---|
| Price: | Negotiate |
| Packaging Details: | outer box |
| Delivery Time: | Based on inventory |
| Payment Terms: | T/T |
| Supply Ability: | Supply by project/batch |
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Detail Information |
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| Condition: | New And Original | Availability: | Stock |
|---|---|---|---|
| Technology: | InfiniBand And Ethernet | Max Speed: | 800Gb/s |
| Length: | 50m | Temperature Range: | 0°C To +70°C |
| Name: | EMllanox Optical Transceiver MMA4Z00-NS400 400Gb/s Single-port OSFP 400Gb/s Multimode SR4 50m Transceiver | Key Words: | Mellanox Optical Transceiver |
| Highlight: | NVIDIA 400G OSFP SR4 transceiver,multimode optical transceiver 4-channel,100G-PAM4 OSFP transceiver |
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Product Description
NVIDIA MMA4Z00-NS400 400G OSFP SR4 Multimode Transceiver
4-Channel 100G-PAM4 Optical Module for InfiniBand NDR & 400GbE
Product Overview
The NVIDIA MMA4Z00‑NS400 is a 400Gb/s single‑port OSFP SR4 multimode transceiver designed for high‑performance data centers. It features 4 lanes of 100G‑PAM4 modulation, 850nm VCSEL technology, and an MPO‑12/APC optical connector. With support for both 400G and automatic 200G modes (when used with splitter cables), it delivers flexible, power‑efficient connectivity for ConnectX‑7 adapters and Quantum‑2/Spectrum‑4 switches.
Key Features
- Data rate: 400Gb/s (4* 100G‑PAM4) or 200Gb/s (2* 100G‑PAM4)
- Protocol support: InfiniBand NDR, 400GbE
- Optical interface: MPO‑12/APC (single 4‑channel connector)
- Wavelength: 850nm VCSEL
- Reach: 50m OM4 / 30m OM3
- Power consumption: 8.5W max (400G) / 5.5W max (200G)
- Hot‑pluggable: OSFP form factor, OSFP MSA compliant
- Management: CMIS 4.0 compliant, I²C interface
- Digital diagnostics: DDM for temperature, voltage, bias, Tx/Rx power
- Compliance: RoHS, Class 1M laser safety
Technology & Design
The MMA4Z00‑NS400 leverages NVIDIA's advanced optical technology with 850nm VCSEL arrays and high‑speed multimode fiber coupling. The 4‑channel design uses 100G‑PAM4 modulation per lane, delivering 400G aggregate bandwidth over a single MPO‑12/APC connector. The transceiver supports adaptive Tx input equalization, programmable Rx output amplitude, and pre‑/post‑cursor adjustment for optimal signal integrity. Digital Diagnostic Monitoring (DDM) provides real‑time visibility into temperature, supply voltage, laser bias current, and optical power levels. The module also includes PRBS generator/checker and loopback modes for system diagnostics.
Typical Deployments
- 400G mode (straight cables): Connect Quantum‑2 or Spectrum‑4 switches to ConnectX‑7 OSFP adapters at 400Gb/s using MFP7E10 straight crossover fiber cables
- 200G mode (splitter cables): Use MFP7E20 1:2 splitter cables to connect a single 400G OSFP transceiver to two 200G ConnectX‑7 adapters, automatically reducing power consumption
- Switch‑to‑switch: Twin‑port OSFP transceivers with straight cables support 800G switch‑to‑switch links
- High‑performance computing: InfiniBand NDR fabrics for AI/ML training and HPC clusters
- Enterprise cloud: 400GbE aggregation links in large‑scale data centers
Compatibility
Switches: NVIDIA Quantum‑2 (InfiniBand NDR), Spectrum‑4 (Ethernet 400G).
Adapters / DPUs: ConnectX‑7 OSFP (for this OSFP transceiver). BlueField‑3 DPUs accept QSFP112 variants – this OSFP module is not compatible with BlueField‑3.
Recommended fiber cables: NVIDIA MFP7E10 (straight) and MFP7E20 (1:2 splitter) crossover Type‑B cables with MPO‑12/APC connectors.
Protocols: InfiniBand NDR and 400GbE (auto‑detected based on host).
Single‑port OSFP transceivers are not for use in switches. Both fibers in twin‑port transceivers must be the same type – straight or splitter – and cannot be mixed.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | 400G OSFP SR4 Multimode Transceiver |
| Form Factor | OSFP (MSA compliant), flat‑top |
| Data Rate | 400Gb/s (4*100G-PAM4) / 200Gb/s (2*100G-PAM4) |
| Optical Connector | Single MPO-12/APC (8 active fibers: 4 TX + 4 RX) |
| Wavelength | 850nm VCSEL |
| Reach (OM4) | Up to 50m (with 2 patch panels) |
| Reach (OM3) | Up to 30m (with 2 patch panels) |
| Supply Voltage | 3.3V (3.135V – 3.465V) |
| Max Power (400G, 4‑ch) | 8.5W max (8W typical) |
| Max Power (200G, 2‑ch) | 5.5W max (5W typical) |
| Low Power Mode | 2W max |
| Operating Case Temperature | 0 °C to 70 °C (DDM up to 75°C) |
| Storage Temperature | ‑40 °C to 85 °C |
| Relative Humidity (Operating) | 5% – 95% (non‑condensing) |
| Management Interface | I²C (CMIS 4.0 compliant) |
| Digital Diagnostics | Temp, Vcc, bias, Tx/Rx power per lane |
| Laser Safety | Class 1M (IEC 60825‑1, CDRH 21 CFR 1040) |
| Pull Tab | Tan (multimode) |
| Connector Shell | Green (MPO‑12/APC) |
| Model Number | MMA4Z00-NS400 |
200G mode (2‑channel) is automatically enabled when using 1:2 splitter cables (MFP7E20 series). Power consumption scales down proportionally.
Product Selection Guide
| Ordering Part Number | Description | Form Factor | Reach |
|---|---|---|---|
| MMA4Z00-NS400 | 400G OSFP SR4, multimode, MPO‑12/APC, 850nm | OSFP | 50m OM4 |
| MMA4Z00-NS (twin‑port) | 800G Twin‑port OSFP 2*400G SR4 | OSFP | 50m OM4 |
| MMA1Z00-NS400 | 400G QSFP112 SR4 (QSFP112 variant) | QSFP112 | 50m OM4 |
For BlueField‑3 DPU compatibility, use the QSFP112 variant (MMA1Z00‑NS400). This OSFP module is for ConnectX‑7 OSFP adapters only.
Key Advantages
- Flexible speed modes: Automatic 200G/400G operation based on cable type (straight or splitter)
- Power efficiency: 5.5W max in 200G mode – ideal for power‑sensitive deployments
- Compact OSFP design: Flat‑top shell integrates with ConnectX‑7 cage heat sinks
- Protocol agnostic: Auto‑detects InfiniBand NDR or 400GbE, simplifying inventory
- Superior signal integrity: APC polish minimizes back reflections for PAM4 reliability
- Comprehensive diagnostics: Real‑time DDM with warning/alarm thresholds
Frequently Asked Questions
Q: What is the difference between 400G and 200G modes?
A: In 400G mode, all 4 lanes are active with straight MFP7E10 cables. In 200G mode, the transceiver automatically detects 1:2 splitter MFP7E20 cables and activates only 2 lanes, reducing power consumption.
Q: Is this module compatible with BlueField‑3 DPUs?
A: No. BlueField‑3 DPUs accept QSFP112 devices only. For BlueField‑3, use the MMA1Z00‑NS400 QSFP112 variant.
Q: Can I mix straight and splitter cables in a twin‑port transceiver?
A: No. Both fibers in a twin‑port OSFP transceiver must be the same type – either both straight or both splitter cables.
Q: What type of fiber cable is required?
A: Use NVIDIA‑supplied Type‑B crossover cables with MPO‑12/APC connectors – MFP7E10 for 400G straight or MFP7E20 for 200G splitter.
Q: What is the maximum reach of this transceiver?
A: 50m over OM4 multimode fiber (with two patch panel junctions) or 30m over OM3.
Q: Can this module be used in Ethernet switches?
A: Single‑port OSFP transceivers like MMA4Z00‑NS400 are not intended for use in switches. They are designed for ConnectX‑7/OSFP adapters. Twin‑port OSFP transceivers are used in Quantum‑2 and Spectrum‑4 switches.
Handling Precautions
Laser Safety Warning: Exposure to laser light can cause damage to the eyes. Use protective face gear while handling this product and keep laser light away from eyes and face.
- Keep dust caps on the optical connector whenever a fiber cable is not connected
- Always clean both the transceiver receptacle and cable connector prior to insertion – 80% of link problems are related to dirty optical connectors
- Observe standard ESD precautions during installation and handling
- Do not apply liquids to the optical connector; use approved cleaning tools and methods
- Use only NVIDIA‑supplied or qualified fiber cables (MFP7E10/MFP7E20 series)
- Ensure the module is fully inserted and latched to prevent thermal and connectivity issues
Compatibility Matrix
| Device Type | Supported Platforms |
|---|---|
| InfiniBand Switches | NVIDIA Quantum‑2 (with twin‑port OSFP transceivers) |
| Ethernet Switches | NVIDIA Spectrum‑4 (with twin‑port OSFP transceivers) |
| Adapters | ConnectX‑7 / OSFP (this module) |
| DPUs | Not compatible with BlueField‑3 (use QSFP112 variant) |
| Recommended Cables | MFP7E10 (straight), MFP7E20 (splitter) – both Type‑B crossover |
Buyer Checklist
- Confirm your adapter supports OSFP (ConnectX‑7/OSFP)
- Verify required speed: 400G (straight cables) or 200G (splitter cables)
- Select appropriate fiber cable: MFP7E10 (straight) or MFP7E20 (splitter)
- Ensure fiber plant is OM3 or OM4 multimode with MPO‑12/APC connectors
- Verify switch side uses compatible twin‑port OSFP transceivers
- Check power budget and cooling for the OSFP module
Related Products
- MMA4Z00-NS – Twin‑port OSFP 800G 2*400G SR4 transceiver (switch side)
- MMA1Z00-NS400 – 400G QSFP112 SR4 (BlueField‑3 compatible)
- MFP7E10‑Nxxx – 4‑channel straight crossover fiber cables
- MFP7E20‑Nxxx – 1:2 splitter crossover fiber cables
- ConnectX‑7 / OSFP adapter cards
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