Category 5 (Cat 5) cable is a type of twisted pair cable used in computer networking. Since 2001, its enhanced version, Category 5e (Cat 5e), has been the standard in common use. This cable supports performance up to 100 MHz and is compatible with most Ethernet standards over twisted pair up to 2.5GBASE-T, though it is most often used for 1000BASE-T (Gigabit Ethernet). In addition to networking, Cat 5 cables can also transmit other signals, including telephone and video.

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