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SFP modules make data go faster

With the rapid growth of artificial intelligence and data centre data, the demand for high-speed, high-capacity data transmission is also increasing, which further drives the development and application of SFP modules.

The SFP module is a hot-swappable small package module in SFP package. SFP modules are mainly composed of lasers. SFP classification can be divided into rate classification, wavelength classification, and mode classification.

It can be simply understood as an upgraded version of GBIC. SFP module’s volume is reduced by half compared to the GBIC module, only about the size of a thumb. More than double the number of ports can be configured on the same panel. Other functions of the SFP module are basically the same as those of the GBIC.

  1. Rate classification

According to the speed, there are 155M/1.25G/10G/40G/100G. 155M and 1.25G are mostly used in the market. The technology of 10G is gradually maturing, and the demand is developing in an upward trend.

  1. Wavelength classification

According to the wavelength, there are 850nm/1310nm/1550nm/1490nm/1530nm/1610nm. The wavelength of 850nm is SFP multi-mode, and the transmission distance is less than 2KM. The wavelength of 1310/1550nm is single-mode, and the transmission distance is more than 2KM. Relatively speaking, this The prices of the three wavelengths are cheaper than the other three.


Single-mode fiber is cheap, but single-mode equipment is much more expensive than similar multi-mode equipment. Single-mode devices typically operate on both single-mode and multi-mode fiber, while multi-mode devices are limited to multi-mode fiber.

JHA Tech, a 17-year company with its own R&D capabilities and factories, is able to offer SFP modules with smaller package sizes and higher port densities. As the power consumption of devices such as servers and Ethernet Switch continues to rise, the power consumption requirements for SFP modules are becoming more stringent. Low power consumption SFP modules not only reduce the overall energy consumption of the equipment, but also improve the stability and reliability of the equipment.

Are you curious about the benefits of Ethernet Switch with large port numbers? The next article will introduce to you. If you want to know in advance, please leave your email address and we will have an expert contact you for one-on-one answers.