Avago 40G QSFP+ SR4 Module (AFBR-79EADZ)

About Avago AFBR-79EADZ 40G QSFP+ SR4 Transceiver Module in Bangladesh

The Avago AFBR-79EADZ is a 40 Gigabit Ethernet QSFP+ SR4 optical transceiver designed for high-speed short-range data communication and interconnect applications. It uses four parallel optical channels to deliver an aggregate 40Gbps data rate over multimode fiber and is designed for data center switches, routers, server interconnects and high-density networking environments.

The AFBR-79EADZ is compliant with the 40GBASE-SR4 specification under IEEE 802.3ba-2010 and supports additional InfiniBand QDR, DDR and SDR applications. The official Avago/Broadcom datasheet specifies operation at 10.3125Gbps per channel for 40GbE and a nominal 850nm wavelength. It supports links up to 100 meters over OM3 fiber and 150 meters over OM4 fiber. :contentReference[oaicite:2]{index=2}

Avago AFBR-79EADZ 40G QSFP+ Specifications & Features

Overview

The Avago AFBR-79EADZ is a four-channel parallel-fiber QSFP+ transceiver for 40 Gigabit Ethernet applications. It combines four transmit and four receive optical channels into a compact QSFP+ form factor, making it suitable for high-density 40GbE network equipment.

The module operates at a nominal 850nm wavelength and is designed for multimode fiber systems. Its official datasheet specifies a reach of up to 100 meters over OM3 multimode fiber and up to 150 meters over OM4 multimode fiber. :contentReference[oaicite:3]{index=3}

Buy Avago AFBR-79EADZ 40G QSFP+ SR4 in Bangladesh

Purchase the Avago AFBR-79EADZ 40G QSFP+ SR4 optical transceiver from Datacom Technologies (BD). We supply enterprise networking equipment, optical transceivers, fiber networking components, server hardware and data center connectivity products in Bangladesh with competitive pricing and technical consultation.

Key Features

• 40Gbps QSFP+ optical transceiver
• 40GBASE-SR4 support
• 850nm optical wavelength
• Four parallel optical channels
• 10.3125Gbps per channel
• 100m reach over OM3 MMF
• 150m reach over OM4 MMF
• MTP/MPO optical connector
• VCSEL array transmitter
• PIN array receiver
• Digital diagnostic monitoring support
• Hot-pluggable QSFP+ design
• Suitable for high-density data center networking

Applications

• 40 Gigabit Ethernet
• Data Center Interconnects
• Enterprise Network Switches
• High-Speed Router Connections
• Server-to-Switch Connectivity
• Data Aggregation
• Backplane Applications
• InfiniBand QDR Applications
• High-Density Network Infrastructure

40Gbps QSFP+ Performance

The AFBR-79EADZ provides an aggregate 40Gbps optical data path through four independent channels. Each channel operates at 10.3125Gbps for 40GbE applications, providing the bandwidth required for high-speed switch, router and server interconnects. :contentReference[oaicite:4]{index=4}

The parallel architecture makes the module particularly suitable for short-distance high-bandwidth connections inside data centers.

40GBASE-SR4 Standard

The AFBR-79EADZ is designed to comply with the 40GBASE-SR4 and XLPPI specifications under IEEE 802.3ba. It is intended for 40GbE short-range multimode-fiber applications. :contentReference[oaicite:5]{index=5}

Using the correct SR4-compatible MTP/MPO fiber infrastructure is essential for establishing a reliable 40GbE link.

850nm Multimode Fiber

The module uses a nominal 850nm optical wavelength and is designed for multimode fiber systems.

For maximum reach, OM4 multimode fiber can provide up to 150 meters, while OM3 multimode fiber supports links up to 100 meters according to the official Avago/Broadcom datasheet. :contentReference[oaicite:6]{index=6}

MTP/MPO Optical Connector

The AFBR-79EADZ uses an MTP/MPO optical interface for its parallel fiber connection. The official datasheet specifies an 8- or 12-fiber MTP connector configuration. :contentReference[oaicite:7]{index=7}

MTP/MPO cabling enables multiple optical lanes to be carried through a single compact connector, helping reduce cable density in high-port-count data center environments.

Four-Channel Parallel Architecture

The AFBR-79EADZ integrates four data lanes in each direction. Each optical lane operates at 10.3125Gbps for 40GbE, resulting in an aggregate 40Gbps communication link. :contentReference[oaicite:8]{index=8}

This parallel architecture is one of the key characteristics of 40GBASE-SR4 and differentiates it from single-lane long-range optical modules such as 40GBASE-LR4.

VCSEL Transmitter and PIN Receiver

The transceiver uses an Avago Technologies VCSEL array transmitter and PIN array receiver. This combination is designed for short-range 850nm multimode-fiber communication. :contentReference[oaicite:9]{index=9}

Digital Diagnostic Monitoring

The AFBR-79EADZ incorporates a two-wire serial interface for digital diagnostic functionality. This allows supported network equipment to access module monitoring information and diagnostic data. :contentReference[oaicite:10]{index=10}

Digital diagnostics can help network administrators monitor optical module operating conditions and simplify troubleshooting in high-density networking environments.

Hot-Pluggable QSFP+ Design

The AFBR-79EADZ is a hot-pluggable transceiver. This allows supported networking equipment to install or replace the optical module without shutting down the entire device. :contentReference[oaicite:11]{index=11}

Actual hot-swap behavior depends on the host switch, router, server adapter and network operating system.

Extended Temperature Operation

The AFBR-79EADZ is the extended-temperature version of the Avago 40G QSFP+ SR4 family. The official datasheet specifies a 0°C to 85°C case-temperature operating range, while the module can cold-start at temperatures as low as -20°C. :contentReference[oaicite:12]{index=12}

This extended temperature capability makes the module suitable for a wider range of networking environments than standard commercial-temperature optics.

40G Ethernet and InfiniBand Support

In addition to 40GbE applications, the AFBR-79EADZ supports 40G-IB-QDR, 20G-IB-DDR and 10G-IB-SDR applications according to the official Avago/Broadcom datasheet. :contentReference[oaicite:13]{index=13}

This makes the module suitable for selected high-performance computing and data center interconnect environments in addition to conventional Ethernet networks.

Data Center Networking

The compact QSFP+ form factor provides high port density for data center switches and routers. The official datasheet specifies a 21mm horizontal port pitch, supporting dense front-panel optical deployments. :contentReference[oaicite:14]{index=14}

The module is suitable for high-bandwidth connections between switches, aggregation equipment, servers and other network infrastructure where short-range multimode fiber is appropriate.

Avago AFBR-79EADZ vs 40GBASE-LR4

Compatibility Considerations

The AFBR-79EADZ is a 40G QSFP+ SR4 multimode optical module. The host networking device must support QSFP+ 40GbE optics and the appropriate SR4/XLPPI interface.

• Compatible QSFP+ port
• 40GBASE-SR4 support
• 850nm multimode optical infrastructure
• Compatible MTP/MPO cabling
• OM3 or OM4 multimode fiber
• Host equipment supporting the module's optical coding and diagnostics

For a 150-meter link, OM4 multimode fiber should be used. OM3 supports up to 100 meters according to the official datasheet. :contentReference[oaicite:15]{index=15}

Benefits

• 40Gbps high-speed network connectivity
• 40GBASE-SR4 compliance
• 850nm multimode optical transmission
• Up to 150m reach over OM4
• Up to 100m reach over OM3
• Four-channel parallel architecture
• MTP/MPO high-density optical connector
• Digital diagnostic capabilities
• Hot-pluggable QSFP+ form factor
• Extended 0°C to 85°C case-temperature range
• Suitable for enterprise data centers
• Suitable for high-density switch and router interconnects

Why Buy from Datacom Technologies (BD)?

Datacom Technologies (BD) supplies enterprise networking products, optical transceivers, QSFP/SFP modules, fiber connectivity products, server hardware and data center equipment in Bangladesh. Customers can receive competitive pricing, technical consultation, deployment assistance and nationwide delivery.

• Call/WhatsApp: +8801748173213
• Email: sales@datacom.com.bd
• Alternative Email: datacomtechnologiesbd@gmail.com
• Office: Tropical Center, 218, Dr. Kudroti Khuda Road, New Elephant Road, Dhaka-1205, Bangladesh

Frequently Asked Questions (FAQ)

Q1: What is the Avago AFBR-79EADZ?
The Avago AFBR-79EADZ is a four-channel 40Gbps QSFP+ optical transceiver designed for 40GBASE-SR4 and related high-speed networking applications.

Q2: What is the data rate of AFBR-79EADZ?
It provides an aggregate 40Gbps data rate, with four channels operating at 10.3125Gbps each for 40GbE. :contentReference[oaicite:16]{index=16}

Q3: What wavelength does AFBR-79EADZ use?
It uses a nominal 850nm optical wavelength.

Q4: What fiber does AFBR-79EADZ use?
It is designed for multimode fiber, including OM3 and OM4 infrastructure.

Q5: What is the maximum distance?
The official datasheet specifies up to 100 meters over OM3 and 150 meters over OM4 multimode fiber. :contentReference[oaicite:17]{index=17}

Q6: What connector does AFBR-79EADZ use?
It uses an MTP/MPO optical connector.

Q7: Is AFBR-79EADZ hot-pluggable?
Yes. The official datasheet specifies a hot-pluggable transceiver design. :contentReference[oaicite:18]{index=18}

Q8: Does AFBR-79EADZ support digital diagnostics?
Yes. The module includes a two-wire serial interface for diagnostic monitoring. :contentReference[oaicite:19]{index=19}

Q9: What is the operating temperature?
The official extended-temperature specification is 0°C to 85°C case temperature, with cold-start capability down to -20°C. :contentReference[oaicite:20]{index=20}

Q10: Is AFBR-79EADZ suitable for data centers?
Yes. The module is designed for 40GbE data center, switch, router, aggregation and high-density interconnect applications. :contentReference[oaicite:21]{index=21}

Q11: Can AFBR-79EADZ be used with OM3 fiber?
Yes. The official specification supports up to 100 meters over OM3 multimode fiber.

Q12: Can AFBR-79EADZ be used with OM4 fiber?
Yes. It supports up to 150 meters over OM4 multimode fiber.

Q13: Is AFBR-79EADZ a single-mode transceiver?
No. It is an 850nm multimode-fiber SR4 transceiver.

Q14: Is AFBR-79EADZ the same as a 40GBASE-LR4 module?
No. AFBR-79EADZ is a short-range 40GBASE-SR4 multimode module using 850nm optics and an MTP/MPO interface, while LR4 modules are designed for longer-distance single-mode fiber links.

Q15: Where can I buy Avago AFBR-79EADZ in Bangladesh?
You can contact Datacom Technologies (BD) for Avago/Broadcom-compatible QSFP+ transceivers, optical networking equipment, fiber components and enterprise data center hardware with competitive pricing and nationwide delivery.