the switch has 24 or 48 auto-negotiating 10base-t/100base-tx ports configured as auto mdix (cross-over). while auto-negotiation is enabled, these ports can automatically detect whether they need to operate in mdi or mdix mode. alternatively, you can manually set these ports to 10base-t half duplex, 10base-t full duplex, 100base-tx half duplex or 100base-tx full duplex. the maximum segment length is 100 m (328 ft) over category 5 twisted pair cable.