What is an SFP+ module?
Simply speaking, SFP+ is an enhanced SFP form factor supporting a higher speed of 8G/10G/16G. An SFP+ module is an enhanced small form factor pluggable transceiver that fits into the SFP+ port of the switch or other networking device. A complete SFP+ system comprises of SFP+ module, SFP+ port, and SFP+ connector in the hosting device.
The SFP+ module is also called the SFP+ transceiver, SFP+ optical module, SFP+ optics, or SFP+ fiber transceiver. Although with several different names, they are the same product. However, most vendors referred to it as an SFP+ module and transceiver. When you search it on Google, you will find plenty of SFP+ suppliers, vendors, or shops.
Compared with the SFP module, the SFP+ module supports a higher speed of 8GFC, 10Gbps, and 16GFC. Furthermore, it also features a required built-in DDM/DOM (digital optical monitor) per SFF-8472. Whilersrose, the SFP module has no requirement for this function.
A typical SFP+ module comprises a cage, PCBA, chip, and optical TOSA+ROSA (sometimes BOSA for BiDi transceiver).

