cat 7

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Cat5 supports speeds up to 100Mb/s (100 MHz)
Cat5e supports speeds up to a Gigabit Ethernet (1,000Mb/s) (100 MHz)
Cat6 supports speeds up to 10 Gigabit Ethernet and can be achieved with distance of 37-55 meters or less depending on the grade of the cable and quality of installation. (1,000Mb/s) (250 MHz)
Cat6A supports speeds up to 10 Gigabit Ethernet with distance up to 100 meters (10,000 Mb/s)(500 MHz)
Cat7 & Cat7A support speeds up to 10 Gigabit Ethernet with distance up to 100 meters (10,000 Mb/s)(1000 Mhz)