Introduction

The NVIDIA MMS4A00 is a 1600Gb/s 2xDR4, single mode optical transceiver supporting the XDR 800Gb/s InfiniBand protocol. The line rate is 200Gb/s using Pulse Amplitude Modulation at 4-channels denoted as 200G-PAM4 enabling two data bits to transfer per clock pulse.

The electrical configuration is 8-channels of 200G-PAM4. Optical configuration is based on two Datacenter Reach, 4-channel (2xDR4), 800Gb/s optical connectors.

Optical connectors are Multiple Push-On 12-fiber, Angled Polished Connector or MPO-12/APC. Two MPO-12/APC optical connectors are used per transceiver.

The 2x800G transceiver engine enables the InfiniBand Quantum-X800 QM3400, 72-cage switch to support 144-ports of 800Gb/s.

Based on 9-um, single mode fibers, the main application is linking two switches together up to 500-meters, or to two 800G links to two switches or network adapters for storage and compute servers. The 500-meter length assumes two optical patch panels or four optical connectors in the link.

NVIDIA’s transceivers guarantee optimal operation in NVIDIA end-to-end InfiniBand systems, and rigorous production testing ensures the lowest bit error rates, low-latency, and best out-of-the-box installation experience, performance, and durability.

Integrated Heat Sink (IHS) Finned Top Transceiver

Riding Heat Sink (RHS) Flat Top Transceiver (this version is planned for future setups)

Key Features

• 1600Gb/s single mode transceiver
• 8-channels of 200G-PAM4 electrical modulation
• Two ports of 4-channel 200G-PAM4 optical modulation
• Two MPO-12/APC optical connectors
• 1310nm laser
• Maximum reach: 500-meters
• 33.5W max power
• Single 3V power supply
• Class 1 laser safety
• Hot pluggable, RoHS compliant
• Supports CMIS 4.0
• Case temperature range of 20°C to +70°C
• Secure Firmware boot and update features

Applications

• Used in Quantum-3 air-cooled and liquid-cooled switch