cat 5e stands for Category 5 Enhanced, which is commonly known as super five-class network cable. This is the technical term written on the cable jacket, indicating it belongs to the enhanced category 5 standard.In general usage scenarios, cat 5e cables often cannot achieve Gigabit speeds. You usually need to pair it with specialized networking equipment that supports the necessary signaling to actually reach that performance level.Even though the standard allows for Gigabit, the reality is that most standard setups using cat 5e will fall short. It is quite difficult to hit the full Gigabit mark without using some specific, high-end network devices.So, if you see 5(e) on your cable, don't assume it will give you Gigabit speed right away. It requires a specific combination of special network devices to function at that speed, otherwise, it likely won't reach Gigabit.To summarize, cat 5e is capable in theory but not in practice for most users. It is only when combined with special network equipment that it can run at Gigabit speeds, and even then, it is not guaranteed in general cases.