100G QSFP28 SR4 1310nm

The QSFP28-100G-SR4 is a 100Gbps multimode optical transceiver using four 850nm VCSEL channels to deliver 100G Ethernet over OM3/OM4 fiber with a reach of up to 100m, compliant with IEEE 802.3bm and QSFP28 MSA standards.

The QSFP28-100G-SR4 is a high-performance 100 Gbps multimode fiber transceiver compliant with IEEE 802.3bm and the QSFP28 MSA specification. It employs four 850 nm VCSEL channels with PAM4 modulation to deliver full-duplex 100 Gbps Ethernet over OM3/OM4 fiber, supporting link lengths up to 100 meters. Housed in a compact QSFP28 form factor, this hot-pluggable module seamlessly integrates with leading switches and routers and offers convenient digital diagnostics monitoring (DDM).

High Bandwidth & Low Latency

Full-duplex 100 Gbps per port

Four 25 Gbps VCSEL PAM4 lanes for excellent signal integrity and ultra-low jitter

Multimode Fiber Compatibility

Supports OM3 (50 µm, 50 GBd/km) and OM4 (50 µm, 100 GBd/km) multimode fiber

Maximum reach:

OM3: up to 70 m

OM4: up to 100 m

Standards Compliance

IEEE 802.3bm 100GBASE-SR4

QSFP28 MSA form factor

RoHS, CE, and FCC certified

Hot-Pluggable & DDM

QSFP28 hot-swap design for live insertion and removal

I²C-based digital diagnostics for real-time monitoring of temperature, current, and optical power

•Data Center Interconnect (DCI): High-throughput east-west traffic aggregation between Top-of-Rack and Spine switches

•High-Performance Computing (HPC): Low-latency, high-bandwidth links for GPU/FPGA clusters

•Storage Networks: Accelerating NVMe-oF and RoCE storage protocols

•Enterprise Backbone: Campus and large-enterprise fiber backbone upgrades

•100% Cisco SFP-H25G-CU2M compatible

•Reduced total cost of ownership (TCO) for short-range 25G links

•Plug-and-play deployment-no need for optical transceivers

•Engineered for maximum reliability and minimal signal degradation

•Backed by Wolon's rigorous quality assurance and compatibility testing