The Cisco SF200E-48 48-port 10/100 Smart Switch + 2 Combo GB SFP Ports is now obsolete (past End-of-Life and End-of-Support status).
End-of-Sale Date: 2015-01-16
End-of-Support Date: 2020-01-31
Cisco's End-of-Life Policy
You can view a listing of available Cisco Small Business 200 Series Smart Switches offerings that best meet your specific needs
If you want support information for the Cisco SF200E-48 48-port 10/100 Smart Switch + 2 Combo GB SFP Ports documentation, it may be available through Cisco.com Search or in the Cisco Community