(Click to Enlarge) CISCO [csc-asa5520csc20k9] - &gt;&gt;&gt; ASA 5520 APPL W/ CSC20 - SW 500 USR AV/SPY - 1 YR SUBSCRIPT (ITEM ALSO KNOWN AS : ASA5520-CSC20-K9) [csc-asa5520csc20k9]