NVIDIA Mellanox MMS1C00-C500 100GbE QSFP28 PSM4 Single-Mode Transceiver, up to 2km: This is a 100GbE QSFP28 PSM4 (Parallel Single Mode 4-lane) optical transceiver module for single-mode fiber Ethernet links up to 2 kilometers. The module operates over 4 parallel single-mode fibers in each direction. This is a transceiver module only; single-mode fiber patch cables and breakout assemblies are sold separately. This is a refurbished unit tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MMS1C00-C500 is a PSM4-class 100GBASE-PSM4 transceiver designed for inter-rack and inter-DC-room single-mode runs that exceed the reach of MMF-based SR4 modules. It uses 4 parallel lanes of single-mode fiber per direction at 25Gb/s NRZ per lane to deliver 100Gb/s aggregate. Single-mode fiber is required end-to-end. The module is RoHS compliant and uses the standard QSFP28 form factor.
Deployment & Use Cases
Inter-rack 100GbE links between rows over structured single-mode cabling. Building-to-building 100GbE within a campus where reach exceeds 100m. Spine-to-core uplinks in data center fabrics requiring single-mode reach. Replacement for SR4 short-reach optics where structured SMF cabling is already in place.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MMS1C00-C500
Form Factor: QSFP28
Module Type: Optical Transceiver (PSM4)
Data Rate: 100GbE (4x 25Gb/s NRZ)
Reach: Up to 2km
Fiber Type: Single-mode (SMF)
Lane Architecture: 4 parallel SMF lanes per direction
Protocol: 100GbE Ethernet
Compliance: RoHS
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
Compatible with NVIDIA Spectrum SN2000/SN3000/SN4000 series switches and ConnectX-4/-5/-6 Dx EN adapters in 100GbE Ethernet mode. Requires 4-pair single-mode fiber infrastructure (typically MTP/MPO-12 or 4 LC duplex pairs depending on patch panel). Not compatible with multi-mode fiber. Not a duplex LC LR4 module; for 2-fiber duplex single-mode use the LR4 variant. Not an InfiniBand transceiver. Patch cables sold separately.
Why TES
T.E.S IT-SOLUTIONS tests every transceiver for optical power, lane integrity, and DDM telemetry before shipment. We provide expert consultation on 100GbE single-mode fabric planning, global shipping, and a 1–3 day handling time. Visit tes-itsolutions.com for the full catalog.