SFP or SFP+ fiber ports
The RUCKUS ICX 7250-24G contains four small form-factor pluggable (SFP) ports (ports 1 through 4). The top row contains odd-numbered ports and the bottom row contains even-numbered ports. These ports reside on slot 2 of the switch and can be used as uplink (data) ports. These ports support 1 Gbps but not 10 Gbps port speeds.
All other RUCKUS ICX 7250 devices contain eight SFP+ ports that support 1 Gbps or 10 Gbps port speeds. The top row ports are odd numbered (ports 1, 3, 5, and 7) and the bottom row ports are even numbered (ports 2, 4, 6, and 8). All ports can be used for stacking or uplinking.
For information about supported SFP and SFP+ transceivers, refer to the RUCKUS datasheet.