StarTech.com Palo Alto Networks 40GBASE-LR4 Compatible QSFP+ Module -
40GBase-LR4 Fiber Optical Transceiver (40GBASE-LR4-ST) - For Optical
Network, Data Networking -

Fiber - Also known as fibre is a class of material similar to a length of thread. Fiber Optics are used in computer communications. Natural fibers are used in clothing maufacturer and many other applications.

Network - A link and communication between things. Often computers or people.

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