The QSFP full-duplex optical module offers 4 independent transmit and receive channels, each capable of 10. 3125Gbps operation for an aggregate data rate of 40Gbps 300m at max link using OM3 fiber. Its modules are designed to operate over multimode fiber systems using an 850nm. The QSFP+ transceiver is designed for 40km optical communication applications, which is compliant with 40GBASE-ER4 of the IEEE P802. Trusted by 260K+. This article provides a comprehensive comparison of mainstream optical transceivers, including SFP, SFP+, QSFP+, QSFP28, and QSFP-DD. It explains their technical differences, compatibility considerations, and ideal use cases to help readers choose the right module for enterprise and data center. QSFP stands for Quad Small Form-factor Pluggable. Simply put, 1x QSFP Speed = 4x SFP Total Speed The typical QSFP+ vs SFP+ appearance The initial. Cisco QSFP-40G-SR4 Compatible 40GBASE-SR4 QSFP+ Optical Transceiver Module (MMF, 850nm, 150m, MTP/MPO, DDM) Cisco QSFP-40G-SR4 Compatible QSFP+ optical transceiver modules from QSFPTEK equipped with MTP/MPO-12 connectors that can transmit 150m through MMF OM4 fiber optic patch cords.
