I used to have a very long CAT5e cable for my internet (my ISP's RJ45 connector is in the worst place so it has to run a long way to my router ). Sometimes I had disconnections because the cable was too long. I bought a set of two of these modules (no modules), added two used SFP modules I bought cheap and ran speed tests which confirmed they can run at full gigabit with no problem. do not heat up at all, so consume almost no energy, which is a plus. The only thing I want to see might be throughput, but not a demo jam for my use case.
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