Mellanox QSFP28 Module — NVIDIA MMS1V70-CM 100G DR1 Transceiver

Unlock ultra-high-speed connectivity with the Mellanox QSFP28 Module, a single-mode 1-lane (DR1) transceiver engineered for reliable, scalable 100 Gigabit Ethernet links. The NVIDIA MMS1V70-CM transceiver converts four input channels of 25 Gb/s NRZ electrical data into a single optical channel capable of delivering 100 Gb/s over distances up to 500 meters on single-mode fiber. This module is designed for data centers, high-performance computing clusters, and enterprise networks that demand dense, low-latency connectivity and future-proof performance.

• Density and scalability: The QSFP28 form factor enables four 25 Gb/s NRZ electrical channels to be multiplexed into one 100 Gb/s optical link, delivering high port density in a compact module. This design supports scalable upgrades for growing data-center fabrics, enabling operators to add capacity without rewriting switch port plans. The transceiver is ideal for spine-leaf architectures and leaf-spine topologies where space and density are critical.
• Reach over single-mode fiber: Engineered for DR1 operation, this module supports links up to 500 meters on single-mode fiber, making it suitable for intra-data-center, data-center interconnect, and campus deployments. Operators can connect between nearby buildings or across data-center aisles with confidence in consistent performance and signal integrity over standard fiber installations.
• Performance and signal integrity: By combining four 25 Gb/s NRZ channels into a single optical stream, the transceiver maintains high spectral efficiency while keeping dispersion and modal effects in check. DR1 optics are optimized for predictable performance across common data-center fiber plants, helping to minimize bit error rate and reduce retiming requirements in the network path.
• Reliability and vendor engineering: As a Mellanox/NVIDIA product, the module benefits from proven manufacturing quality, stringent testing, and ongoing firmware and management integration. The design prioritizes thermal stability, EMI resilience, and long-term availability, which helps data centers maintain steady traffic and predictable upgrade cycles.
• Interoperability and ease of deployment: The module is designed to work with QSFP28-enabled switches and routers that support 100G Ethernet using DR1 optics. It plugs into standard QSFP28 ports with hot-swapping capability in compatible devices, enabling rapid capacity upgrades with minimal downtime. Management and diagnostics are aligned with common network element interfaces for straightforward integration.

Technical Details of Mellanox QSFP28 Module

• Transceiver model: NVIDIA MMS1V70-CM
• Form Factor: QSFP28
• Data rate: 100 Gb/s (4 x 25 Gb/s NRZ electrical inputs to a single optical channel)
• Mode: Single-mode fiber, reach up to 500 meters (DR1)
• Applications: 100 Gigabit Ethernet links for data centers and high-performance networks
• Compatibility: QSFP28 ports and systems that support 100G DR1 optics

How to install Mellanox QSFP28 Module

Install this transceiver in a compatible 100G-capable switch, router, or network appliance that supports QSFP28 DR1 optics. Follow these general guidelines to ensure a proper, reliable installation:

• Prepare the device: Ensure the host equipment is powered down or in a safe maintenance mode if required by your organization. Verify that the target QSFP28 port is configured for 100G operation and that the firmware on the host device supports the MMS1V70-CM module.
• Inspect and prepare: Remove protective dust caps from the transceiver slot and inspect the port area for debris. Keep cables and the module clean to avoid contamination of contacts.
• Insert the module: Align the MMS1V70-CM module with the QSFP28 slot and slide it firmly into place until the retention mechanism engages. Do not force the module; if it does not seat cleanly, re-check alignment and try again.
• Connect the fiber cables: Attach the single-mode fiber link according to your network topology, ensuring proper transmission and reception paths as defined by your cabling plan. Use clean, certified fiber connectors and perform fiber end-face inspection if available.
• Power on and verify: Restore power to the device and monitor the management interface or console to confirm the link state. Validate 100G throughput using a quick traffic test or standard diagnostics to ensure the module is functioning correctly within your fabric.

Frequently asked questions

• What is the Mellanox QSFP28 Module used for? It is a 100G optical transceiver designed for single-mode fiber using DR1, aggregating four 25 Gb/s NRZ electrical inputs into a single 100 Gb/s optical channel to support 100G Ethernet links.
• What distance does it support? The MMS1V70-CM supports up to 500 meters on single-mode fiber in DR1 configuration, making it suitable for intra-data-center and short-haul interconnects.
• Is this module compatible with all QSFP28 ports? It is designed for QSFP28 ports that support 100G Ethernet optics in the DR1 class. Always verify compatibility with your switch or router vendor’s qualified parts list.
• What deployment scenarios is it best suited for? It’s ideal for data-center spine-leaf fabrics, high-density 100G uplinks, and inter-data-center connectivity where fiber reach is moderate and performance requirements are high.
• Does it come with any special management features? Management features are aligned with standard 100G QSFP28 optics; specific capabilities depend on the host device’s transceiver management and vendor support.