C2960s-universalk9-mz.152-2.e9.bin -

Enables you to "stack" up to four of these switches together using a special module, allowing them to act as a single logical unit with shared management and increased redundancy. PoE+ Management:

: This is simply the file extension indicating that it's a binary executable file. c2960s-universalk9-mz.152-2.e9.bin