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Cisco SFP-10G-SR vs FET-10G

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Cisco SFP-10G-SR vs FET-10G

I'm puzzled with some optical transceivers today. I have no idea to choose which one, Cisco original SFP-10G-SR transceiver or also Cisco original FET-10G transceivers. What's the difference between them?

Andrewp's picture
Cisco 10GBASE-SR Module

Cisco 10GBASE-SR Module supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade multimode fiber (MMF). Using 2000MHz*km MMF (OM3), up to 300m link lengths are possible. Using 4700MHz*km MMF (OM4), up to 400m link lengths are possible. 10GB FETs are limited in distance as copper cabling is 100 meters, the issue is that the FET 10 are made ​​exclusively to work with Nexus 2000, and when you put on the chassis hardware brand failed unless you put the command (mode FEX).