GbE SFP SX Fiver Transceiver / 1 Gbe SFP Copper Module

Hi Experts,

I noticed when looking at firewalls sold in the UK that you can purchase additional modules or transceivers. such as the two listed below:

1 GbE SFP SX Fiber Transceiver
1 GbE SFP Copper Module

what do they do? some seem rather expensive!
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An SFP port is a cable agnostic port. It allows a fixed port on the network equipment,  and then you use different SFP transceiver.depending upon the cabling required. SX is short distance fiber optic cable, and the copper module is for regular Cat 5 cable.
Gigabit SFP costs in range ~ 200$, which greatly exceeds any gigabit network card (especially when one has 4 ports on any server motherboard today)
If you have choice find similar device that has sockets for cat5 cables.
peggiegregAuthor Commented:
what are these for? what is there purpose and how do they work?
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To connect network cables....
One is for copper the other is fiber, your choice depending on your preference or available infrastructure. Its like the others have stated, you may be looking at this too much.

Reasons for preference, fiber (in this case multi-mode) allows your connections to work over longer distances, with SX up to ~1800 feet if i remember correctly, copper is only 330 feet (100M). So the choice is all about how your are conencting your devices and the infrastructure you have in place. It is all about options.......

harbor235 ;}

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But gigabit fiber come on....
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