You can use config tool to find the answer.
https://apps.cisco.com/qtc/config/jsp/configureHome.jsp
ASA5520-CSC20-K9
ASA 5520 Appl w/ CSC20, SW, 500 Usr AV/Spy, 1 YR Subscript
Included: ASA-CSC-20-INC-K9 ASA 5500 CSC Security Services Module-20
Included: ASA5520-VPN-PL ASA 5520 VPN Plus 750 Peer License
Included: SF-ASA-7.2-K8 ASA 5500 Series Software v7.2
Included: ASA-CSC20-PL-EVAL 30-Day Evaluation License for ASA 5500 CSC SSM-20 Plus Pack
Included: ASA-CSC20-LIC ASA 5500 Series Content Security SSM-20 Software License
Included: ASA5500-ENCR-K9 ASA 5500 Strong Encryption License (3DES/AES)
Included: SF-ASA-CSC-6.2-K9 ASA 5500 Series CSC Software 6.2 for Security Service Module
Included: CAB-AC Power Cord,110V
Included: ASA-VPN-CLNT-K9 Cisco VPN Client Software (Windows, Solaris, Linux, Mac)
