What is the difference between 8F MPO OM4 and multimode fiber patchcords of other grades?

Jan 02, 2026Leave a message

Hey there! As a supplier of 8F MPO OM4 Fiber Patchcords, I often get asked about the differences between 8F MPO OM4 and multimode fiber patchcords of other grades. So, I thought I'd write this blog to clear things up.

Let's start with a bit of background. Multimode fiber patchcords are used to connect different devices in a network, like switches, routers, and servers. They're designed to carry multiple light modes simultaneously, which makes them great for short - distance, high - speed data transmission. There are several grades of multimode fiber patchcords, including OM3, OM4, and OM5, each with its own set of features and performance characteristics.

Bandwidth and Distance

One of the major differences between 8F MPO OM4 and other grades is the bandwidth and the maximum transmission distance. The "OM" in OM3, OM4, and OM5 stands for "Optical Multimode".

8F MPO OM4 fiber patchcords are a step up from 8F MPO OM3 fiber patchcords. OM3 patchcords, like the ones you can find here, have a nominal bandwidth of 2000 MHz·km at 850 nm. This means they can handle data rates of up to 10 Gbps for distances up to 300 meters.

On the other hand, 8F MPO OM4 fiber patchcords have a much higher nominal bandwidth of 4700 MHz·km at 850 nm. This allows them to support 10 Gbps data rates for up to 550 meters, and even higher data rates like 40 Gbps and 100 Gbps for shorter distances. So, if you need to transmit data over longer distances at high speeds, 8F MPO OM4 is the way to go.

Now, let's talk about OM5. The 8F MPO OM5 Fiber Patchcord is designed for use with wavelength - division multiplexing (WDM) technology. It has a similar bandwidth to OM4, but it's optimized for multiple wavelengths in the 850 - 953 nm range. This makes it ideal for data centers where there's a need to increase the capacity of existing multimode fiber infrastructure without having to replace the entire cabling system.

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Cost

Cost is another factor that sets these different grades of multimode fiber patchcords apart. Generally, the cost increases as the performance improves.

8F MPO OM3 fiber patchcords are the most affordable option. They're a good choice for small - to - medium - sized networks where the data transmission requirements aren't too demanding.

8F MPO OM4 patchcords are a bit more expensive than OM3. But when you consider the increased bandwidth and longer transmission distances, the extra cost is often worth it, especially for larger data centers and networks that require high - speed, reliable data transfer.

The 8F MPO OM5 fiber patchcords are likely to be the most expensive of the three. This is because of their advanced features and the technology they're designed to work with. However, in the long run, they can provide cost - effective solutions for data center upgrades, as they allow for more capacity without a complete cabling overhaul.

Compatibility

When it comes to compatibility, 8F MPO OM4 fiber patchcords are generally backward - compatible with OM3 systems. This means you can use an 8F MPO OM4 patchcord in an OM3 - based network if you want to upgrade the performance of a particular link. However, it's important to note that using an OM3 patchcord in an OM4 - optimized network may limit the overall performance.

OM5 patchcords are also designed to be compatible with existing OM3 and OM4 infrastructure to some extent. But they're really meant to be used with WDM technology. So, if your network doesn't have the necessary equipment to support WDM, an OM5 patchcord may not be the best choice.

Applications

The applications of these different grades of multimode fiber patchcords also vary.

8F MPO OM3 fiber patchcords are commonly used in local area networks (LANs) where the data rates are relatively low, such as in small offices or home networks. They can handle basic data transfer needs like email, web browsing, and file sharing.

8F MPO OM4 fiber patchcords are widely used in data centers, enterprise networks, and high - performance computing environments. They're well - suited for applications that require high - speed data transfer, such as server - to - server communication, storage area networks (SANs), and high - definition video streaming.

The 12F MPO OM4 Fiber Patchcord is also a popular option in data centers where there's a need to connect multiple devices simultaneously. The higher number of fibers allows for more connections and greater flexibility in network design.

8F MPO OM5 fiber patchcords are mainly used in data centers that are looking to upgrade their existing multimode fiber infrastructure. They're ideal for data centers that need to increase the capacity of their networks to support emerging technologies like 400 Gbps Ethernet.

So, to sum it up, the main differences between 8F MPO OM4 and other grades of multimode fiber patchcords lie in bandwidth, distance, cost, compatibility, and applications. When choosing the right patchcord for your network, you need to consider your specific requirements in terms of data rate, transmission distance, budget, and future expansion plans.

If you're still not sure which type of multimode fiber patchcord is best for you, feel free to reach out. We're here to help you make the right decision for your network. Whether you need a single 8F MPO OM4 Fiber Patchcord or a large - scale installation, we've got you covered. Let's talk about your needs and see how we can work together to build a reliable and high - performance network.

References

  • ITU - T G.651.1: Characteristics of a 50/125 µm multimode graded index optical fibre cable.
  • TIA - 568.3 - D: Commercial Building Telecommunications Cabling Standard Part 3: Optical Fiber Cabling Components.

That's all for today's blog. Hope it was helpful!