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What are the Differences between OM3 and OM4 Cable?

March 26, 2025

Bandwidth and transmission rate 

  1. The bandwidth of OM3 fiber is 2000 MHz·km, while the bandwidth of OM4 fiber can reach 4700 MHz·km, which is much higher than OM3.

  2. 2. OM4 fiber can provide higher data transmission rate and lower signal attenuation on the same length of fiber. OM4 fiber has obvious advantages over OM3 fiber jumpers in bandwidth and transmission rate.


Transmission distance 

  1. In 10 Gbps application scenarios, the transmission distance of OM4 fiber can reach 550 meters, while the transmission distance of OM3 fiber is between 300 meters and 550 meters.

  2. 2. In 40 Gbps and 100 Gbps application scenarios, the transmission distance of OM4 fiber can reach 150 meters to 300 meters. The specific transmission distance depends on the application scenario and system configuration.

  3. For data centers and enterprise networks that require long-distance transmission, OM4 fiber can provide better transmission performance.


  4. Stability and compatibility OM4 fiber is superior to OM3 in terms of stability and compatibility.

  5. 1. OM4 fiber has lower loss and higher stability, which can ensure the reliability and accuracy of data transmission.

  6. 2. OM4 fiber is also backward compatible with OM3 fiber. OM4 fiber has wider applicability and higher scalability.


  7. Transmission quality

  8. OM4 fiber has lower loss characteristics, which can reduce signal attenuation and improve the accuracy and reliability of data transmission.

  9. OM4 fiber has better stability and durability, and data transmission is stable and reliable.


High-efficiency energy consumption 

OM4 fiber has lower energy consumption than other types of multimode fiber, which makes it useful in high-density cabling scenarios such as data centers.


Wide range of application scenarios 

  1. Data center In high-density, high-bandwidth application scenarios such as data centers, OM4 fiber can provide good performance support. Supporting high-speed network channels, other network protocols, etc., can meet the high requirements of data transmission rate and transmission distance in data centers.

  2. 2. Enterprise network With the continuous expansion of enterprise networks, the requirements for data transmission rate and transmission distance are also getting higher and higher. With its good performance advantages, OM4 fiber provides strong support for the upgrade and expansion of enterprise networks.



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