Q: What are the different Categories of Cable?

The term Category cable refers to classifications of UTP (unshielded twisted pair) cables. The difference in classifications of the cables is mainly through electrical performance criteria. There are currently three main Categories of cable - Category 3, Category 4, and Category 5. The electrical performance of these cable can be found in a document called "TIA/EIA 568-A: Commercial Building Telecommunications Cabling Standard", often referred to as just 568-A. The main purpose of these cable are for use in a customer's LAN computer system.