Save significantly on the NVIDIA Mellanox MMA1B00-C100D — a genuine OEM 100GBASE-SR4 QSFP28 optical transceiver, fully tested and backed by Reef Telecom's industry-leading 10-year warranty. This end-of-life optic is increasingly hard to source new, making certified refurbished the smart choice for data center and AI cluster deployments.
Technical Specifications
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Part Number: MMA1B00-C100D
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Form Factor: QSFP28
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Data Rate: 100Gb/s (4x 25Gb/s lanes)
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Wavelength: 850nm VCSEL
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Connector: MPO-12 / MTP
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Fiber Type: Multimode (MMF) — OM3 / OM4
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Max Reach: 70m (OM3) / 100m (OM4)
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Standards: IEEE 802.3bm, 100GBASE-SR4, QSFP28 MSA, SFF-8636, CAUI-4
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Diagnostics: Digital Diagnostic Monitoring (DDM/DOM) via I2C
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Power Consumption: ≤2.5W
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Operating Temp: 0°C to 70°C
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Breakout Support: 4x 25GBASE-SR via MPO-to-LC harness
Key Features
- Genuine NVIDIA/Mellanox OEM transceiver — not a third-party compatible
- Hot-pluggable with selectable retiming in TX and RX directions
- Certified for NVIDIA ConnectX adapters, Spectrum switches, and DGX/HGX platforms
- Supports GPUDirect RDMA for high-performance AI and HPC workloads
- Backward compatible with 40GbE QSFP+ ports
Why Buy from Reef Telecom?
- 10-year warranty on all refurbished equipment
- Free shipping on orders over $300
- Every transceiver tested and verified before shipment
- Volume pricing available — contact us for quotes
Ideal for data center leaf-spine architectures, AI training clusters, HPC interconnects, and enterprise 100G Ethernet upgrades. Compatible with NVIDIA Spectrum, Spectrum-2, and Spectrum-3 series switches as well as ConnectX-4, ConnectX-5, and ConnectX-6 network adapters.
