The series is a high performance module for Small Form Factor (SFF) and single fiber communications using 1310nm transmitter/receiver. The transmitter uses a multiple quantum well laser. Select up to four products for detailed comparison. InventoryABSTRACT: This specification defines the physical interface, low speed electrical, and management interface requirements of SFP+ 1x pluggable transceiver solutions including: SFP+ (4 Gb/s), SFP10, SFP16, SFP28, SFP56, and SFP112. This specification provides a common reference for systems. Fiber optic networks rely on optical transceivers to convert electrical signals into optical signals for transmission over fiber cables.