I am very Confused regarding port density regarding Cisco Linksys SRW2048
The comparison matrix refers SRW2048 has 48 10/100/1000 ports and 2 Shared Ports
http://www.cisco.com/en/US/products/ps9967/prod_models_comparison.html
The data sheets refers that it has
48 RJ-45 connectors for 10BASE-T, 100BASE-TX and 1000BASE-T with 4 shared Small Form-Factor Pluggable (SFP) slots
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps9967/ps9991/data_sheet_c78-502271.html
Whereas the picture on the datasheet refers that it has 48 10/100/1000 with 4 SFP ports only