ENET MFA7A50-C003-ENC 3M 100GBE to 4X25GBE QSFP28 to 4XSFP28 Active Cable Mellanox Compatible

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

• Mellanox-compatible QSFP28 → 4×SFP28 AOC breakout cable

• 100 Gbps total throughput split into four full-duplex 25 Gbps channels

• 3 Meter length with OM4 multimode fiber and 850 nm VCSEL optics

• QSFP28 & SFP28 MSA-compliant connector interfaces

• Built-in DDM support via I²C for diagnostics (power, temp, etc.)

• Low power: ~2.5 W (QSFP28 end), ~0.8 W per SFP28 end

• BER rating better than 1×10⁻¹⁵ for reliable transmission

• Minimal bend radius 30 mm, LSZH jacket, hot-swappable plug and play

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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)

• Breakout AOC splitting 100 GbE QSFP28 into 4×25 GbE SFP28 channels

• Supports IEEE 100GBASE-SR4 and InfiniBand EDR protocols

• DDM diagnostics (optical power, temp, voltage) via I²C

• Power unobtrusive: QSFP28 ~2.5 W; each SFP28 ~0.8 W

• Hot-pluggable, MSA-compliant design for easy deployment

• LSZH jacket, 30 mm bending radius for safe cable routing

• Lifetime warranty; RoHS & TAA compliant

Specifications :

Specification	Details
Model Number	MFA7A50-C003-ENC
Product Type	Active Optical Cable
Data Rate	100 Gbps aggregate; 4×25 Gbps per channel
Cable Length	3 Meters
Fiber Type	MMF OM3/OM4 with 850 nm VCSEL optics
QSFP28 Interface	QSFP28 MSA-compliant with DDM
SFP28 Interfaces	4× SFP28 MSA-compliant with DDM
Power Supply	3.3 V DC power input
Power Consumption	QSFP28 end ≈2.5 W; SFP28 ends ≈0.8 W
Minimum Bend Radius	~30 mm
Operating Temp	0 °C to 70 °C
Storage Temp	-40 °C to 85 °C
BER Performance	<1×10⁻¹⁵
Compliance	IEEE 802.3bm, SFF-8402/8665, RoHS, TAA
Warranty	Lifetime Limited Warranty