NVIDIA Mellanox MMS1C10-CM 100GbE QSFP28 PSM4 Transceiver, 1310nm, 500m: This is a parallel single-mode QSFP28 optical transceiver supporting 100Gb Ethernet at distances up to 500 meters over MPO single-mode fiber. It uses 4-channel PSM4 architecture at 1310nm with uncooled DFB lasers and is SFF-8665 compliant. This is a pluggable transceiver that requires a separate MPO single-mode fiber patch cord; it is not an active optical cable. This is a NEW (factory-sealed) unit, sold as a lot of 2.
Engineering Context
The MMS1C10-CM implements the 100GBASE-PSM4 specification with 4 parallel single-mode lanes at 25Gb/s each, sharing a single MPO connector. The 1310nm DFB sources provide 500m reach over OS2 single-mode fiber. The transceiver is also qualified for Mellanox InfiniBand EDR end-to-end systems on VPI ports. Power consumption is typical for QSFP28 PSM4 (under 3.5W envelope). The module is form-factor-compliant with QSFP28 host slots and supports digital diagnostic monitoring (DDM) per SFF-8636.
Deployment & Use Cases
Inter-row 100GbE links in data centers using single-mode fiber backbones. Spine-to-leaf 100GbE on Mellanox Spectrum switches with reach beyond 70m (the OM3/OM4 multi-mode SR4 limit). Mellanox EDR InfiniBand end-to-end fabrics over single-mode parallel fiber. AI training cluster east-west traffic where 500m reach is required.
Technical Specifications

OEM: NVIDIA Mellanox
Part Number: MMS1C10-CM
Form Factor: QSFP28
Standard: 100GBASE-PSM4 (parallel single-mode)
Data Rate: 100Gb/s (4x 25Gb/s NRZ)
Reach: Up to 500m
Wavelength: 1310nm
Fiber Type: Single-mode (SMF, OS2)
Connector: MPO (multi-fiber push-on)
Optics: Uncooled DFB laser, integrated
Compliance: SFF-8665, SFF-8636 (DDM)
Quantity: Lot of 2 units
Condition: NEW

Compatibility & Hard Constraints
Compatible with NVIDIA Mellanox Spectrum-series 100GbE switches (SN2000/SN3000/SN4000) and ConnectX-4/ConnectX-5 EN/VPI adapters with QSFP28 ports. For InfiniBand EDR use, requires VPI-capable switches and adapters. Requires a separate MPO single-mode fiber patch cord — patch cord not included. Not compatible with multi-mode SR4 fiber plant; this is single-mode PSM4 only. Not a breakout-capable transceiver in the 4x25G SFP28 sense; pairs with another PSM4 transceiver for 100G end-to-end. Polarity Type B MPO patch cord is the typical match.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS supplies NEW factory-sealed Mellanox optics with original packaging where available. Visit www.tes-itsolutions.com for the full QSFP28 transceiver catalog. We offer global shipping with 1–3 day handling.