Cisco ASA 5520 Memory Upgrade

For anyone using a Cisco ASA 5505, 5510, 5520 or 5540 in their home, lab or non-production environments and wants to be able to run ASA OS versions 8.3 and later you’re probably going to be on the market for a memory upgrade. Cisco ASA memory upgrades are bonkers expensive and while for a production environment you’d want to pay this to get the Cisco TAC support, chances are you aren’t going to want to stump up this kind of money for other purposes.