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1. Support both InfiniBand NDR (IB) and Ethernet (ETH) 2. Support 800G to 2x 400G and 4x 200G breakout applications 3. Built-in Broadcom DSP chip 4. Max power consumption ≤8.5W 5. VCSEL transmitter and PIN PD receiverSee more
The NVIDIA/Mellanox MMA1Z00-NS400 Compatible 400GBASE-SR4 QSFP112 transceiver module supports a max data rate of 425Gbps. It enables the fiber link of 50m over MMF with MPO-12 APC connectors. QSFPTEK manufactured SR4 QSFP112 complies with 400G InfiniBand NDR, QSFP112 MSA, CMIS Rev 5.0, RoHS, IEEE 802.3df-2024 4x100GBASE-SR1/2x200GBASE-SR2/1x400GBASE-SR4 optical interface and 4x100GAUI-1/2x200GAUI-2/1x400GAUI-4 C2M electrical interface. DDM function is supported on the 400G fiber optic transceiver to achieve real-time operating parameters monitoring. Adopting the Pulse-amplitude Modulation (PAM4) electrical and optical modulation, the Short Reach 4-channel (SR4) QSFP112 achieves 400 Gigabit Ethernet through 4-channels of 100G-PAM4.
This 400G SR4 QSFP112 supports both InfiniBand NDR (IB) and Ethernet (ETH). While not for use in switches, it is designed for insertion into 400Gb/s ConnectX-7/QSFP112-based PCIe-bus network cards or BlueField-3/QSFP112 Data Processing Units (DPUs) to twin-port 800G transceivers in 2x400G IB/EN switches. Its most typical application scenario is: A pair of single-port flat top 400G SR4 QSFP112 (MMA1Z00-NS400) is independently connected to one of the connectors of the twin-port 800G 2x400G 2SR4 OSFP (MMA4Z00-NS) module in a Quantum-2 InfiniBand or Spectrum-4 Ethernet switch. The MMA1Z00-NS400 400G module can operate in either 400Gb/s or 200Gb/s speed modes, depending on the number of connected fiber optic cables. This allows for corresponding connectivity scenarios of 800G to 2x 400GBASE-SR4 and 4x 200GBASE-SR4 breakout applications, respectively.
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Scenario 1: Twin-port 2x400G OSFP IB/EN Switch to 2x 400G ConnectX-7/QSFP112 or BlueField-3/QSFP112 DPUs Connectivity
Scenario 2: Twin-port 2x400G OSFP IB/EN Switch to 4x 200G ConnectX-7/QSFP112 or BlueField-3/QSFP112 DPUs Connectivity
Undergoes Comprehensive Performance Testing to Guarantee Optimal Reliability
The QSFPTEK test center conducts complete testing procedures with advanced professional test equipment, including BER test, eye diagram test, Optical Spectrum test, jitter test, etc. Each module has been stringently tested by world-class test devices from Keysight and Anritsu to guarantee flawless operation and optimal reliability.
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Compatible NVIDIA/Mellanox (InfiniBand/Ethernet)
Transceivers type MMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top
Testing went smoothly from the start. The links came up as expected, and repeated traffic tests produced consistent results, so there wasn't much troubleshooting needed from our engineering team.
Transceivers typeMMA1Z00-NS400 QSFP112 SR4 | 50m | Single MPO-12/APC | Flat Top
CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)
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In our high-density rack environment, saving space and keeping cable management simple are important. This module helped us maintain a cleaner layout and made future port expansion easier to plan.
Transceivers typeMMA1Z00-NS400 QSFP112 SR4
CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)
Verified Purchase
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We selected this module for a high-density switch environment where space efficiency was an important consideration. It helped us maximize available ports while keeping the overall network design clean and organized.
Transceivers typeMMA1Z00-NS400 QSFP112 SR4
CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)
Verified Purchase
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Cheap, fast, works. That’s it. Got the QSFP112 SR4 for my BlueField-3 DPU, slapped it in, and it’s been running 24/7 without a single hiccup. Will definitely buy again.
Transceivers typeMMA1Z00-NS400 QSFP112 SR4
CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)
Verified Purchase
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Using this with our ConnectX-7 cards in a small AI cluster, and it's been rock solid so far. Plug-and-play with no compatibility issues, and throughput is right where we expect it. Great option if you're trying to keep costs down without sacrificing performance.
Transceivers typeMMA1Z00-NS400 QSFP112 SR4
CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)
Verified Purchase
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Bought this for a small lab connecting a few high-speed switches, wasn't expecting much for the price. But it's actually really solid. Worked immediately with our Mellanox equipment, no compatibility issues, and the link has stayed stable under load for weeks.
Transceivers typeMMA1Z00-NS400 QSFP112 SR4
CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)
Verified Purchase
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I need an optical module that can be matched with ConnectX-7 Adapters. I searched on Google and found that QSFPTEK offers the same module at a more affordable price. I've been using it for a while now and it seems to be working fine.
Transceivers typeMMA1Z00-NS400 QSFP112 SR4
CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)
Verified Purchase
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Used this for our small AI cluster (GPU nodes + switches), plug and play. Exactly what you need for this speed. Flexible enough for tight racks, no signal issues yet. Will definitely order more for expansion.
Transceivers typeMMA1Z00-NS400 QSFP112 SR4
CompatibleNVIDIA/Mellanox (InfiniBand/Ethernet)
Verified Purchase
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