The ports are IEEE802.3u Auto-Negotiation compliant. This means that the ports can automatically configure their speed and duplex mode to match the capabilities of the end nodes connected to the ports.
Port 5 and the Uplink Port
Port 5 and the Uplink port allow you to connect an additional workstation to the switch or interconnect the switch with another switch or hub, without the use of a cross-over cable. If you need to connect an additional workstation to the switch, use Port 5, which is configured as MDI-X, just like ports 1 through 4. If you need to connect the switch to another Ethernet switch, use the Uplink port, which is configured as MDI.
Both Port 5 and the Uplink port offer 10 Mbps or 100 Mbps performance and auto-negotiation operation for both speed and duplex mode, just like ports 1 through 4. Both ports feature an RJ-45 connector and have a maximum operating distance of 100 meters (328 feet) using category 5 cable.
Note
You can use either port 5 or the Uplink port. You cannot use both simultaneously.