Solitine 100G SR4 QSFP28 Module – 100Gbps Connectivity for High-Density Networks
A modern data centre can have dozens of servers, storage devices and network switches exchanging large amounts of traffic at the same time. When these connections require a high-capacity backbone within a short distance, selecting the correct optical transceiver is just as important as choosing the switch.
The Solitine 100G SR4 QSFP28 Module is designed for high-speed 100 Gigabit Ethernet connectivity over multimode fiber. Operating at an 850nm wavelength, this 100GBASE-SR4 optical transceiver uses four parallel optical lanes with an MPO-12 connector to support short-range connections between compatible 100G networking devices.
With a rated distance of up to 70m on OM3 and 100m on OM4 or OM5 multimode fiber, it is well suited to high-density data centres, enterprise switching environments and server-to-switch interconnections.
Four Optical Lanes Working Together
Unlike a conventional single-lane SFP module, the Solitine QSFP28 SR4 uses four parallel optical transmit lanes and four receive lanes to provide an aggregate 100G Ethernet connection.
Each lane operates at approximately 25.78125Gbps, delivering an aggregate optical signaling rate of 103.125Gbps across the four lanes.
This parallel design provides the capacity required for high-bandwidth switching and aggregation while maintaining a compact QSFP28 form factor.
The module operates at 850nm using multimode optical technology. It is intended for compatible 100GBASE-SR4 connections rather than long-distance single-mode fiber transmission.
MPO-12 Connectivity and the Right Multimode Fiber
The MPO-12 optical connector is a key feature of this module. It allows multiple optical paths to be carried through a single high-density connector instead of using separate LC connectors for each lane.
For a standard 100G SR4 connection, four fibers carry transmit signals and four fibers carry receive signals. The remaining positions of the 12-fiber MPO interface are not used for these optical lanes.
The module's rated fiber distances are:
OM3 Multimode Fiber: Up to 70 metres
OM4 Multimode Fiber: Up to 100 metres
OM5 Multimode Fiber: Up to 100 metres
Before installation, verify the MPO cable type, fiber polarity, connector condition and multimode fiber grade. An incorrect polarity arrangement or unsuitable cable can prevent the link from operating even when both devices have QSFP28 ports.
This module should not be connected directly to a standard LC Duplex patch cord without an appropriate supported cabling arrangement.
Optical Performance and Diagnostic Monitoring
The Solitine 100G SR4 QSFP28 transceiver is designed for demanding short-range networking environments where the optical link must carry substantial traffic between compatible devices.
Its manufacturer-published specifications include:
Optical Standard: 100GBASE-SR4
Wavelength: 850nm
Transmitter Power: -8.4 to +2.4dBm
Receiver Sensitivity: -10.3dBm or better, as specified
Operating Temperature: 0°C to 70°C
Form Factor: Hot-pluggable QSFP28
The module also supports Digital Diagnostic Monitoring (DDM), allowing compatible networking equipment to access supported transceiver operating information.
Depending on the host platform, monitoring can help technicians inspect optical signal levels and other diagnostic parameters when commissioning or troubleshooting a fiber link.
Actual monitoring visibility and reported values depend on the connected switch or router and its firmware.
Where a 100G SR4 Module Is Most Useful
Data centre switch-to-switch links: Connect compatible 100G switches within a rack row or across nearby equipment racks where high-capacity fiber uplinks are required.
Server and storage networking: Provide suitable 100 Gigabit Ethernet connections between supported network interfaces and switching infrastructure.
Enterprise core and aggregation: Use existing compatible OM3, OM4 or OM5 fiber infrastructure for short-range backbone connections that need significantly more capacity than standard 10G links.
The Solitine QSFP28 module has a compact design measuring approximately 72 × 18.35 × 8.5mm and weighs around 30g, making it suitable for dense networking hardware.
Its hot-pluggable form factor supports convenient installation and replacement in compatible QSFP28 ports.
Compatibility Matters More Than the Connector Alone
Not every optical module that fits a QSFP28 port will support the same fiber type, optical standard or distance.
For this Solitine 100G SR4 model, both link endpoints should support compatible 100GBASE-SR4 optics and the required multimode MPO cabling.
Some switches also apply vendor-specific transceiver compatibility restrictions, so confirm the device model and firmware before ordering.
This product is not a 100G LR4 long-range module, a 10G SFP+ transceiver or a GPON/EPON OLT optical module. It is specifically designed for short-reach 100G parallel optical Ethernet connections.
For related fiber networking products, explore Trende's SFP Module Collection, where different optical standards and distances can be compared before selecting a transceiver.
Solitine 100G SR4 QSFP28 Module Price in Bangladesh
The Solitine 100G SR4 QSFP28 Module price in Bangladesh is ৳4,890 at Trende Bangladesh, compared with the listed regular price of ৳5,000.
For networking professionals comparing 100G SFP price in Bangladesh or looking for a 100G QSFP28 Module, this Solitine SR4 model offers 850nm parallel optical transmission, MPO-12 connectivity and up to 100m rated reach on suitable multimode fiber.
The package includes one Solitine 100G SR4 QSFP28 transceiver and a dust cap, backed by a 1-year official warranty.
Choose the Solitine 100G SR4 QSFP28 Module from Trende Bangladesh after confirming your switch compatibility, MPO cable polarity and required fiber distance.
