100GBASE-SR4 QSFP28 Compatible Transceiver: 100G-QSFP28-100

Our EDGEOPTIC 100G-QSFP28-100 is a multi-vendor compatible 100GBASE-SR4 QSFP28 optical module designed for 100 Gigabit Ethernet applications operating over multimode fiber infrastructure. This quad small form-factor pluggable transceiver utilizes four parallel optical lanes at 25 Gbps each, delivering aggregate throughput of 103.125 Gbps for high-density data center and enterprise backbone deployments.

The 100G-QSFP28-100 module operates at 850nm wavelength across all four transmit and receive channels, employing NRZ (Non-Return to Zero) modulation for signal encoding. Our 100GBASE-SR4 QSFP28 transceiver utilizes VCSEL (Vertical-Cavity Surface-Emitting Laser) array for transmission and PIN photodiode array for receiving. This proven optical architecture delivers reliable performance while maintaining cost-effectiveness for short-reach multimode fiber applications.

Transceiver ensures a 1.9 dB guaranteed optical link budget, which determines the maximum transmission distance. Over OM4 multimode fiber, the transceiver can reach distances up to 100 meters, while on OM3 cabling approximately 70 meters. However, distance is just an indicative parameter calculated for comfort of identification – eventually we calculate distance taking into account minimal optical budget and average attenuation of optical cabling in industry. The module requires 8 fibers for full-duplex operation, using four fibers for transmission and four for reception.

100G-QSFP28-100 compatible 100GBASE-SR4 module is a hot-pluggable QSFP28 with MTP/MPO-12 (UPC) connector as the optical interface. The electrical interface conforms to SFF-8636 and SFF-8665 MSA (Multi-Source Agreement) specifications, ensuring compatibility with standard QSFP28 host systems supporting multiple vendor equipment platforms. Our 100GBASE-SR4 QSFP28 transceiver can be encoded to be compatible and successfully operate in different 80+ brands of equipment.

The module incorporates DDM/DOM (Digital Diagnostic Monitoring) functionality providing real-time information including transmitted and received optical power levels, module temperature, bias current, and supply voltage. This diagnostic data is available via MSA-compatible interface and enables monitoring of transceiver operational parameters. The module operates within a 0 to 70°C temperature range with maximum power consumption of 3.5W, with appropriate thermal considerations for sustained operation in controlled data center environments.

Standards compliance includes IEEE 802.3bm for 100 Gigabit Ethernet 100GBASE-SR4 specification and QSFP28 MSA. The transceiver achieves multi-vendor interoperability through adherence to industry MSA standards, though equipment with vendor-specific module validation may require custom EEPROM programming for compatibility. Our 100GBASE-SR4 QSFP28 transceiver is CE/RoHS certified, Class 1 FDA and IEC60825-1 Laser Safety Compliant.

Typical applications include data center top-of-rack to spine connections, high-performance computing clusters, storage area networks, and enterprise backbone infrastructure. The parallel optical design accommodates high-density deployments where port count and power efficiency are critical considerations.

Because our focus is providing top quality service, we are performing serious quality checks before delivery of our products. As a result, we do optical parameter measurements, connector cleanliness tests and QSFP28 transceiver EEPROM memory data validation tests.