ASA RAM Requirements for IOS Upgrading



      While looking into NAT translation rules and upgrading here is a nice table from Cisco if you're looking at upgrading anytime and need some RAM requirements like I did.  

Cisco ASA Model

Minimum RAM Requirements (pre Cisco ASA 8.3)

Minimum RAM Requirements (post Cisco ASA 8.3)

Default Shipping RAM on New Cisco ASA Adaptive Security Appliances (as of Feb. 2010)

5505 10-User

256 MB

256 MB

512 MB

5505 50-User

256 MB

256 MB

512 MB

5505 Unlimited-User

256 MB

512 MB

512 MB

5505 Security Plus

256 MB

512 MB

512 MB

5510

256 MB

1 GB

1 GB

5510 Security Plus

256 MB

1 GB

1 GB

5520

512 MB

2 GB

2 GB

5540

1 GB

2 GB

2 GB

5550

4 GB

4 GB

4 GB

5580-20

8 GB

8 GB

8 GB

5580-40

12 GB

12 GB

12 GB

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