Optech 400G QSFP112 SR4 Transceiver Compatible with NVIDIA MMA1Z00-NS400

As AI clusters, HPC environments, and high-speed data center networks continue to scale, optical interoperability is becoming more important than ever. Network operators need transceivers that do more than match the form factor. They need products that deliver stable signal integrity, practical reach, thermal reliability, and smooth integration with leading platforms.

Optech’s 400G QSFP112 SR4 transceiver is designed for exactly that need. Compatible with NVIDIA MMA1Z00-NS400 and tested on the NVIDIA QM9790 switch, this solution is well suited for high-performance multimode optical links in advanced data center and AI networking environments. NVIDIA’s official product documentation defines MMA1Z00-NS400 as an InfiniBand and Ethernet 400Gb/s, single-port, QSFP112, SR4 multimode parallel transceiver.

What Is NVIDIA MMA1Z00-NS400?

According to NVIDIA’s official documentation, the MMA1Z00-NS400 is a 400Gb/s QSFP112 SR4 multimode parallel transceiver that uses a single 4-channel MPO-12/APC optical connector. It is designed for both InfiniBand and Ethernet environments and uses 100G-PAM4 modulation. NVIDIA also states that the module supports a maximum reach of 50 meters over OM4 multimode fiber, assuming two optical patch panels in the link.

That makes this class of transceiver highly relevant for short-reach, high-bandwidth deployments where compact 400G connectivity is required between switches, adapters, and high-performance compute infrastructure.

Why Optech’s 400G QSFP112 SR4 Matters

Optech’s 400G QSFP112 SR4 transceiver gives customers a practical solution for NVIDIA-compatible 400G optical connectivity in high-speed environments. By aligning with the MMA1Z00-NS400 optical profile and validating performance in an NVIDIA QM9790-based environment, Optech helps reduce deployment risk and improve confidence for customers building AI fabrics and next-generation data center links.

The QM9790 itself is listed by NVIDIA as a Quantum-2 based NDR InfiniBand EVB switch with 64 NDR ports, 32 OSFP ports, and 51.2Tbps non-blocking switching capacity. That places this validation in a high-performance networking context that is relevant to AI and HPC infrastructure.

Key Features of the Optech 400G QSFP112 SR4 Transceiver

400Gb/s High-Speed Optical Performance

The biggest advantage is straightforward: 400Gb/s throughput. For high-density clusters and fast east-west traffic inside AI and HPC infrastructure, 400G connectivity remains a core building block.

QSFP112 Form Factor

The QSFP112 form factor is widely associated with modern high-speed 400G interconnects. NVIDIA’s documentation identifies MMA1Z00-NS400 as a single-port QSFP112 module, making it a relevant standard for compact 400G optical deployment.

SR4 Multimode Parallel Optics

This module follows the SR4 multimode parallel optics approach, which is ideal for short-reach, high-bandwidth links inside data centers. NVIDIA specifies that the design uses a single 4-channel MPO-12/APC optical connector and 850nm multimode optics.

Up to 50m Reach over OM4

NVIDIA’s official specification states that this module type supports up to 50m over OM4 multimode fiber, which makes it especially suitable for rack-to-rack and row-level interconnects in tightly controlled data center environments.

Support for InfiniBand and Ethernet Environments

A notable strength of the NVIDIA reference design is that it is positioned for both InfiniBand and Ethernet use. That expands the relevance of this compatible optical solution across different network architectures.

Tested on NVIDIA QM9790 Switch

For customers, interoperability testing matters. Optech’s validation on the NVIDIA QM9790 switch adds practical deployment value because it shows the product has been tested in a real NVIDIA high-speed switching environment.

Key Advantages of Optech’s NVIDIA-Compatible 400G QSFP112 SR4

1. Better Deployment Confidence

Compatibility with NVIDIA MMA1Z00-NS400 helps customers reduce uncertainty when selecting optics for NVIDIA-oriented 400G environments.

2. Ideal for Short-Reach High-Density Links

Because this is an SR4 multimode solution, it is especially well suited for short, structured links inside data centers where 400G bandwidth is needed without requiring longer-reach single-mode optics.

3. Strong Fit for AI and HPC Infrastructure

The QM9790 is part of NVIDIA’s Quantum-2 NDR switching ecosystem, which is directly relevant to AI and high-performance computing environments. Using a compatible transceiver in such an ecosystem supports deployment in performance-sensitive networks.

4. Practical Multimode Cost Efficiency

Compared with longer-reach single-mode solutions, multimode SR4 optics can be a cost-effective choice for short-reach intra-data-center links where OM4 cabling is already deployed.

5. Thermal and Mechanical Alignment with Modern 400G Platforms

NVIDIA’s QSFP112 specification notes that this module class uses a flat-top body to support cooling for an 8-watt NDR transceiver, highlighting the importance of thermal readiness in dense 400G environments.

Typical Application Scenarios

AI Cluster Connectivity

AI clusters generate large volumes of east-west traffic between switches, adapters, and compute resources. A 400G QSFP112 SR4 transceiver is a strong fit for short-reach optical links in these environments.

High-Performance Computing Networks

HPC deployments rely on low-latency and high-bandwidth interconnects. Since NVIDIA positions MMA1Z00-NS400 for InfiniBand and Ethernet use, this type of module is naturally relevant to performance-driven compute networks.

Rack-to-Rack Multimode Links

With up to 50m OM4 reach, this transceiver is well suited for rack-to-rack and row-level optical runs inside modern data centers.

GPU Server and Adapter Connectivity

NVIDIA’s validated and supported cable and switch ecosystem includes this QSFP112 module type alongside ConnectX-7 and related high-speed environments, making it relevant for GPU and adapter-side optical connectivity.

400G Data Center Upgrades

For organizations migrating from 100G or 200G to 400G, an NVIDIA-compatible QSFP112 SR4 solution can help simplify the transition in multimode-based infrastructure zones.

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H2: What Is NVIDIA MMA1Z00-NS400?
H2: Why Optech’s 400G QSFP112 SR4 Matters
H2: Key Features of the Optech 400G QSFP112 SR4 Transceiver
H2: Key Advantages of Optech’s NVIDIA-Compatible 400G QSFP112 SR4
H2: Typical Application Scenarios
H2: FAQ

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• 400G QSFP112 MPO-12 APC
• 400G SR4 OM4 transceiver
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FAQ

1. What is the Optech 400G QSFP112 SR4 transceiver compatible with?

It is positioned as compatible with NVIDIA MMA1Z00-NS400 and has been tested on the NVIDIA QM9790 switch.

2. What are the main specifications of NVIDIA MMA1Z00-NS400?

NVIDIA describes MMA1Z00-NS400 as a 400Gb/s, single-port, QSFP112, SR4 multimode parallel transceiver using a single 4-channel MPO-12/APC connector and supporting up to 50m over OM4 multimode fiber.

3. Is this module for Ethernet only?

No. NVIDIA states that MMA1Z00-NS400 is designed for both InfiniBand and Ethernet environments.

4. What fiber type does this transceiver use?

It is a multimode SR4 optical module. NVIDIA’s supported product listings describe it as using 850nm MMF with an MPO-12/APC interface.

5. What is the maximum reach?

NVIDIA specifies up to 50 meters over OM4 multimode fiber, assuming two optical patch panels in the link.

6. Why is QM9790 testing important?

Testing in an NVIDIA QM9790 environment helps show that the transceiver has been validated in a real high-performance NVIDIA switching context. NVIDIA identifies the QM9790 as a Quantum-2 based NDR InfiniBand EVB switch with 64 NDR ports and 51.2Tbps switching capacity.

7. What applications is this module best for?

It is best suited for AI clusters, HPC networks, rack-to-rack multimode links, GPU connectivity, and short-reach 400G data center interconnects.

Conclusion

Optech’s 400G QSFP112 SR4 transceiver offers a strong option for customers looking for a solution compatible with NVIDIA MMA1Z00-NS400 and tested on the NVIDIA QM9790 switch. With 400Gb/s bandwidth, QSFP112 form factor, SR4 multimode optics, MPO-12/APC connectivity, and up to 50m OM4 reach, it fits the needs of modern high-speed AI and data center environments. NVIDIA’s official specifications for MMA1Z00-NS400 reinforce that this module class is built for exactly these kinds of demanding 400G deployments