NVIDIA/Mellanox MMS1C10-CM Compatible 100G QSFP28 PSM4 Optical Transceiver – 500m, SMF, 1310nm, MPO-12, DOM
The MMS1C10-CM compatible QSFP28 optical transceiver is a high-performance, 4-channel 100G PSM4 module engineered for short- to medium-reach applications over single-mode fiber (SMF). It supports transmission distances up to 500 meters via a 1310nm wavelength using a MPO-12/UPC connector, making it ideal for high-density data center and InfiniBand environments.
Each of the four channels operates at data rates up to 25.78 Gb/s, enabling an aggregated bandwidth of 100Gbps. The optical interface is designed for parallel fiber transmission, and the module complies fully with PSM4 MSA, SFF-8636, and QSFP28 MSA specifications. It is also qualified for InfiniBand EDR (Enhanced Data Rate) end-to-end systems.

Equipped with DOM (Digital Optical Monitoring) via I²C interface, the module provides real-time monitoring of temperature, voltage, laser bias, and optical power. It is widely deployed in Mellanox SB7800 switches, ConnectX-5 adapters, and supercomputing clusters for efficient and scalable 100G connectivity.


Technical Specifications – NVIDIA/Mellanox MMS1C10-CM Compatible 100G QSFP28 PSM4 Transceiver
• Compatibility: NVIDIA/Mellanox InfiniBand EDR
• Model: MMS1C10-CM
• Form Factor: QSFP28
• Maximum Data Rate: 103.125Gbps (4 × 25.78Gbps)
• Wavelength: 1310nm
• Maximum Cable Distance: Up to 500m over SMF
• Connector Type: MTP/MPO-12 UPC
• Fiber Type (Media): Single-Mode Fiber (SMF)
• Transmitter Type: 4× DFB (Distributed Feedback Lasers)
• Receiver Type: PIN photodiode

Optical & Electrical Performance
• Transmit Power (TX): -9.4 to 2dBm
• Receiver Sensitivity: < -12.66dBm
• Power Budget: 3.2dB
• Receiver Overload: 2dBm
• Extinction Ratio: > 3.5dB
• Power Consumption: = 3.5W
• Electrical Modulation: 4 × 25Gb/s NRZ
• Optical Modulation: 4 × 25Gb/s NRZ
• DDM/DOM: Supported (Digital Diagnostics Monitoring)
• Operating Temperature Range: 0°C to 70°C

Compliance & Applications
• Standards/Protocols:
o SFF-8636
o PSM4 MSA
• Application:
o InfiniBand 100G EDR
o High-density data center interconnects
o Parallel single-mode architectures in supercomputing environments