Mellanox InfiniBand MMA4Z00-NS Compatible OSFP 800G SR8 PAM4 2 x SR4 850nm 50m DOM Dual MPO-12/APC MMF NDR Finned Top Optical Transceiver Module

The Mellanox MMA4Z00-NS is an InfiniBand and Ethernet 800Gb/s 2x400Gb/s Twin-port OSFP, DR8 multimode, parallel, 8-channel transceiver using two, 4-channel MPO-12/APC optical connectors at 400Gb/s each. The parallel multimode, short reach 8-channel (SR8) uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using 8 multimode fibers. The 50-meter length assumes two optical patch panels in the link. This advanced connectivity is powered by Mellanox InfiniBand technology.

The Twin-port SR8 transceiver is a key Mellanox innovation with two internal transceiver engines enabling 64-ports of 400Gb/s in a 32-OSFP cage Quantum-2 switch. Spectrum-4 switches have 32 or 64 cages and enable 64-128 400G ports. The transceiver firmware supports both InfiniBand and Ethernet and is automatically enabled based on the switch protocol, showcasing the versatility of Mellanox InfiniBand.

The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMA4Z00-NS is linking two switches together with up to 50-meter transceivers (marked blue). A flat-top version offered for liquid-cooled and DGX H100 Cedar7 systems links, further extending the reach of Mellanox InfiniBand.

The transceiver combinations guarantee optimal operation in Mellanox end-to-end systems and customer networking solutions. Rigorous production testing ensures the best out-of-the-box installation experience, performance, and durability with Mellanox InfiniBand technology.

MMA4Z00-NS Key Features

• InfiniBand and Ethernet
• 800G SR8 multimode transceiver
• 8-channels of 100G-PAM4 electrical modulation
• Two ports of 4-channel 100G-PAM4 optical modulation
• Supports two straight 400Gb/s or two 1:2 splitter fiber cables for 200Gb/s
• Finned-top OSFP for air-cooled switches
• Flat-top OSFP for DGX- H100 or liquid-cooled
• 850nm VCSEL
• Maximum reach:
  • 30m using OM3 fiber
  • 50m using OM4 fiber
• Two MPO-12/APC optical connectors
• 17 Watts max power
• 2.0 Watt low-power sleep mode
• Single 3.3V power supply
• Class 1 laser safety
• Hot pluggable, RoHS compliant
• OSFPmsa.org compliant
• CMIS 4.0 compliant
• Case temperature range 0°C to +70°C

MMA4Z00-NS Applications

• Used in Quantum-2 air-cooled switches, liquid-cooled and DGX-H100 systems to switches, ConnectX-7, and BlueField-3 DPUs, all leveraging Mellanox InfiniBand for high performance.