100GBASE-SR4 QSFP28 Multi-Rate Transceiver: 100G-QSFP28-101

Our EDGEOPTIC 100G-QSFP28-101 is a multi-vendor compatible 100GBASE-SR4 QSFP28 multi-rate optical module designed for 100 Gigabit Ethernet, OTN, and Fiber Channel 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 up to 112 Gbps for high-density data center and enterprise backbone deployments with multi-protocol flexibility.

The 100G-QSFP28-101 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 multi-rate 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 supporting multiple data rates and protocols within a single module, providing operational flexibility for diverse network environments.

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-QSFP28-101 compatible 100GBASE-SR4 multi-rate 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 supports multi-protocol operation including 100G Ethernet (103.125 Gbps), 128GFC Gen 6 Fiber Channel (112.2 Gbps), and OTU4 (112 Gbps) for optical transport networks. This multi-rate capability distinguishes the module from standard SR4 transceivers, accommodating storage and transport network protocols alongside Ethernet. 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 converged infrastructure deployments requiring Ethernet and Fiber Channel support within the same transceiver platform.

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.