Enet
MFA7A50-C003-ENC – Mellanox-Compatible 100 GbE to 4×25 GbE Breakout AOC (QSFP28 → 4×SFP28), 3 Meter
The Enet MFA7A50-C003-ENC is a premium, Mellanox-compatible active optical breakout cable that converts a single 100 Gbps QSFP28 port into four individual 25 GbE SFP28 ports. This 3 meter Active Optical Cable (AOC) delivers ultra-low latency and plug-and-play simplicity—ideal for spine-leaf architectures, high-density switch-to-server links, and optimized data center environments. Fully factory-programmed and serialized for compatibility, it supports InfiniBand EDR and 100 GBASE Ethernet protocols with minimal configuration.
Features
Built to mimic the official Mellanox MFA7A50-C003 standard, this breakout cable supports four independent bi-directional channels over multimode fiber using 850 nm VCSEL optics and SFF MSA-compliant QSFP28 and SFP28 connectors. Operating at approximately 103 Gbit/s aggregate data rate, each lane carries roughly 25 Gbps and ensures stable, high-speed operation across all four split channels. The QSFP28-end consumes up to 2.5 W (with full retiming enabled), and each SFP28 module under 1 W, helping minimize thermal impact in rack deployments
Advanced Options
RoHS-compliant and tested to rigorous BER thresholds (<1×10⁻15), the cable includes built-in I²C-based DDM for real-time monitoring of optical power, temperature, and voltage across all ports. A minimum 30 mm bending radius and rugged LSZH jacket material ensure durability and safe routing in dense rack environments
Product Key Features
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Mellanox-compatible QSFP28 → 4×SFP28 AOC breakout cable
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100 Gbps total throughput split into four full-duplex 25 Gbps channels
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3 Meter length with OM4 multimode fiber and 850 nm VCSEL optics
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QSFP28 & SFP28 MSA-compliant connector interfaces
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Built-in DDM support via I²C for diagnostics (power, temp, etc.)
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Low power: ~2.5 W (QSFP28 end), ~0.8 W per SFP28 end
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BER rating better than 1×10⁻¹⁵ for reliable transmission
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Minimal bend radius 30 mm, LSZH jacket, hot-swappable plug and play
Reliability & Performance
Designed for high-density data center topologies, the Enet breakout cable ensures low-latency, high-integrity 25 GbE signaling across all four channels. Each channel benefits from clock/data retiming, equalization, and channel isolation, maintaining throughput with minimal jitter and error rate. Factory testing and unique serialization guarantee Mellanox port compatibility without firmware locking or handshake issues. Power-efficient operation (<2.5 W per QSFP28, <1 W per SFP28) and careful thermal design reduce environmental burden in switch chassis. Compliance with IEEE 802.3bm, SFF-8402/8665, and strict testing protocols ensures stability and long-term performance—ideal for cloud spine-leaf networks, virtualization clusters, and AI/ML infrastructure.
Key Features (Bullet List)
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Breakout AOC splitting 100 GbE QSFP28 into 4×25 GbE SFP28 channels
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Supports IEEE 100GBASE-SR4 and InfiniBand EDR protocols
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DDM diagnostics (optical power, temp, voltage) via I²C
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Power unobtrusive: QSFP28 ~2.5 W; each SFP28 ~0.8 W
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Hot-pluggable, MSA-compliant design for easy deployment
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LSZH jacket, 30 mm bending radius for safe cable routing
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Lifetime warranty; RoHS & TAA compliant
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