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Comparison of the differences between SFP and 1×9 optical modules
Knowledge Base + 2023.12.12

First, what is the SFP optical module

SFP optical module is a small hot-swappable optical module in SFP package, with common rates of 100 megabits and gigabits, and is an industry-standard small pluggable optical transceiver module.

Second, what is 1 × 9 optical module

1 × 9 optical module is a 1 × 9 pin optical module, 1 × 9 optical module size is usually larger, using a rectangular form factor, compared with the SFP optical module is more massive. This design makes the 1×9 optical module need to use a special 1×9 slot to match the slot of the device during installation.

Third, Walsun SFP and 1 × 9 optical module difference comparison

1, form factor and interface type

SFP optical module adopts small-size package, usually can be inserted in the switch, router and other equipment in the SFP optical port. While 1 × 9 optical module size is more massive, usually using a 9-pin connector, need to be welded through a dedicated 1 × 9 slot.

2, transmission rate and distance

SFP optical modules support a variety of transmission rates, including 100Mbps, 1Gbps, 10Gbps, etc., and can be hot-swapped according to demand. The 1 × 9 optical module is mainly used for transmission rates below 1Gbps application scenarios, the distance is relatively short, usually less than 80 kilometers.

3, application scenarios

SFP optical modules are widely used in high-density fiber optic switches, routers, fiber optic communication equipment and other fields due to their compact and flexible design. They can provide different interface types, such as Gigabit Ethernet, Fibre Channel, etc., to meet the needs of different application scenarios. On the other hand, 1×9 optical modules are mainly used for simpler fiber-optic communication applications, such as enterprise LANs and fiber-optic transmission systems. Due to its relatively large size limitations, the application range of 1 × 9 optical modules is relatively narrow.

In summary, the SFP optical module compared to the 1 × 9 optical module has a smaller size, higher speed and longer transmission distance advantages, can be better adapted to the needs of modern data centers. At the same time, SFP optical modules also have better reliability, hot swapping and security, which can ensure the stability of data transmission. Therefore, in modern network applications, SFP optical modules have gradually replaced the status of 1×9 optical modules and become one of the mainstream optical modules. However, when choosing an optical module, it should be selected according to the specific needs and application scenarios in order to achieve the best performance and adaptability.