Category 7
Cat7 is a very high performance system, specified to run at frequencies up to 600MHz. It is mandatory that Cat7 systems are shielded, with both the individual cables and the overall cables being screened (S/FTP). Cat7 has been around as long as Cat6, but until recently was only popular in Germany and some other European countries, where shielded solutions are required to meet the local electromagnetic regulations. However, with the development of 10GBaseT, which Cat7 fully supports, Cat7 is becoming a viable alternative to a Cat6a solution in countries like UK. A downside of Cat7 is its use of non standard connectors (i.e. not RJ-45).
