ASA5520-MEM-2GB= 2 GB Memory Upgrade for Cisco ASA 5520
2 GB Memory Upgrade for Cisco ASA 5520 Part Number:ASA5520-MEM-2GB=
ASA 5585-X Chassis with SSP20, 8GE, 2SFP,2GE Mgt, 1 AC, DES ASA5585-S20-K8 Part Number:ASA5585-S20-K8
ASA 5585-X Spare AC Power Supply Part Number:ASA5585-PWR-AC=
2 GB Memory Upgrade for Cisco ASA 5540 Part Number:ASA5540-MEM-2GB=
ASA 5555-X with SW, 8GE Data, 1GE Mgmt, AC, DES Part Number:ASA5555-K8