The cisco catalyst 4500e series 48 port gigabit ethernet line cards provide high performance 101001000 switching they are designed for lan access applications where desktop users require gigabit connection speeds this line cards also support standard ieee 8021ae encryption and cisco trustsec in hardware features 9679 48 ports nonblocking 9679 101001000 module rj 45 9679 cisco ios xe release 310sg or later 9679 ieee 8023afat and cisco prestandard poe ieee 8023x flow