Catalyst 3750 SFP Transceiver

I am trying to figure which port is fiber sfp and which port is copper sfp. I have a 3750 WS-C3750X-48P-S.

...
Gi1/0/5                      connected    trunk      a-full a-1000 unsupported
Gi1/0/9                      connected    trunk      a-full a-1000 1000BaseSX SFP
Gi1/0/10                      connected   1          a-full a-1000 10/100/1000BaseTX SFP
Gi1/0/11                    connected    1          a-full a-1000 10/100/1000BaseTX SFP

I know that gig1/0/5 is a non-Cisco sfp sx transceiver
I am not sure about gig1/0/9-gig1/0/11. Is that a copper sfp transceiver? If yes, then is then an actual sfp transceiver in there?

The answer:
Gig1/0/9 is a fiber SX transceiver
Gig1/0/10 - 11 are copper transceivers

Yes they are actually there otherwise the ports would not show anything.
The more information of Cisco switch FAQ, please visit: http://cisco2960faq.blogspot.com/

How to connect Cisco 3750 with fiber?

What SFP module would you use to connect a 3750 switch WS-C3750X-48P-L to a 3550 that is using a WS-G5486 Gigabit module? Does anyone have experience with SX to LX adapters and if they are reliable?

The answer:

You would need to use a GLC-LH-SMD transceiver for this, and a LC-SC single-mode patch cord (if they're being connected directly without an intermediate patch-panel).

They are very reliable and are used for long links, well over the length that SX modules can go.

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