It uses a laser or VCSEL (vertical cavity surface emitting laser) as a light source to convert the electrical signal into an optical signal and transmit it to the receiving end, which then converts the optical signal back to the electrical signal. SFP + is a new generation of 10 Gigabit optical module, which in accordance with the ANSI T11 protocol, to meet the Fiber Channel 8. 5G and Ethernet 10G applications. SFP +. 10G SFP + is a miniaturized photoelectric conversion module specifically designed to support high-speed network communication standards such as 10 Gigabit Ethernet (10GbE). It is composed of optoelectronic devices, functional circuits and optical interfaces, etc. Structure In addition to the common transceiver integrated. 10GBASE-T SFP+ electrical port module: 10G electrical port module, also known as optical port to electrical port module, photoelectric conversion module, it is a hot-swappable module, SFP+ packaging, RJ45 connector, 10G transmission rate, transmission distance up to 30m, its port supports shielded. There is provided a photoelectric conversion module in which an optical device and an optical waveguide are arrayed in a horizontal direction, thereby improving the optical coupling efficiency and therefore, reducing light loss.