Fiber opticsFiber optic cables, basic and premium
A wide selection of fiber optic cables, basic and premium, in a wide range of connector types. Every one is covered by our Lifetime Warranty.

Explore fiber
Start with our fastest multimode fiber, or dig into the details in the Learning Center.
Achieve blazing speeds and future-proof your network with OM5 cables.
Our fiber optics and cabling knowledge base gives you the information you need to navigate the expanding world of fiber.
Why choose CK for fiber optics
Risk-free purchase, hassle-free returns. Awesome is guaranteed.
Everything you buy from CablesAndKits is covered by a lifetime warranty, including a lifetime advance replacement guarantee.
Orders are processed and shipped the same day until 6pm.
Take a full month to try your order. If you are not completely satisfied, we will take it back and refund your money.
Premium fiber and the Fiber Builder
Choose from our premium Corning cables, or build a custom cable to your exact spec.
Unmatched quality, designed to run your network at the highest performance: Corning® ultra-pure glass fiber for strength and low signal loss, a Low Smoke Zero Halogen (LSZH) jacket for the safest cabling environment, and bend-insensitive fiber for excellent transmission in challenging environments.
Customize your own fiber optic cable by choosing the connector type, cable type and length.
Premium cable: speed, safety, reliability, growth
What goes into every CablesAndKits premium fiber cable.
Corning ultra-pure glass fibers give the highest degree of strength and purity, for low attenuation and low signal loss across your network.
Our premium OM3 cables transmit light with minimal loss even when bent and twisted beyond the normal bend radius. A ring of refractive material reflects escaping light back into the core.
Low Smoke Zero Halogen jackets reduce the toxic and corrosive gas that could be released under extreme heat or in a fire.
Lower Optical Return Loss and back reflection than standard PC connectors, for more reliable data, digital and telephony signals.
Reverse polarity on our OM3 cables in the field, without special tools, for correct fiber mapping with fewer cables.
A 2.0mm footprint, compared with 3.0mm for regular fiber cables, for better airflow, cooling and cable management in dense racks.
What is a fiber patch cable?
A fiber cable is a patch or interconnect cable that uses glass instead of copper to carry the signal. Its three main parts are the core, the cladding and the jacket.
What are the differences between the optical modes?
The two big differences are core size and transmission. OM1 uses a 62.5/125-micron core while the rest use a 50/125-micron core. OM1 and OM2 use LED transmitters, while OM3, OM4 and OM5 use laser-optimized multimode transmission.
OM5 at a glance
The benefits of running OM5 fiber in your network.
Backwards compatible with OM3 and OM4, so you can upgrade without replacing older cables.
Up to 440 meters for 40G networks and up to 150 meters for 100G.
A serious increase in performance without a serious increase in price.
More bandwidth from a single fiber: 28 GHz.
OM5 needs fewer fibers and can use four separate wavelengths, so loss is lower.
WBMMF extends OM4 to carry multiple wavelengths, supporting traffic from 850 to 950 nm.
OM5 vs OM4
OM5 gives you all the benefits of OM4, plus longer runs on SWDM4. Distance comparison:
OM5 fiber cables
Standard and Corning premium OM5 LC-LC patch cables, backwards compatible with OM3 and OM4.
OS2, OM1, OM2, OM3, OM4 and OM5 side by side in the CK Learning Center.
Transceivers for your fiber
These transceivers are compatible with our fiber cables.

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- Lifetime warranty with advance replacement
- Same-day shipping
- 30-day money-back guarantee
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