The Cisco Catalyst Express 520G-24TC Switch is now obsolete (past End-of-Life and End-of-Support status).
End-of-Sale Date: 2009-12-17
End-of-Support Date: 2014-12-18
Cisco's End-of-Life Policy
You can view a listing of available Switches offerings that best meet your specific needs
If you want support information for the Cisco Catalyst Express 520G-24TC Switch documentation, it may be available through Cisco.com Search or in the Cisco Community