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How do I find out the speed of an Ethernet cable?
Fresh7 days ago
Mar 15, 2026107899 viewsConfidence Score0%
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Problem
During the years I've collected many ethernet cables. I'd like to know the speed of each one (10Mbit / 10BASE-T or 100Mbit / 100BASE-TX or 1000BASE-T). How could I find out the speed of each Ethernet cable? Most cables have codes written on it but I don't know how to figure out the speed from this …
Error Output
E244650 (UL) TYPE CM 24AWG/4PRS
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Fix for: How do I find out the speed of an Ethernet cable?
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If the cable has 4 twisted pairs (Orange, Green, Blue, Brown) then it's capable of 1gbps link speeds, provided there's a gigabit adapter/switch at both ends. Cable 3 is a Cat5E, which is definitely capable of gigabit speeds. The other cables are, mo…
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