ASA5540-MEM-2GB= 2 GB Memory Upgrade for Cisco ASA 5540
2 GB Memory Upgrade for Cisco ASA 5540 Part Number:ASA5540-MEM-2GB=
ASA 5525-X with SW, 8GE Data, 1GE Mgmt, AC, DES Part Number:ASA5525-K8
ASA 5585-X Chassis with SSP40,6GE,4SFP+,2GE Mgt,1 AC,DES Part Number:ASA5585-S40-K8
ASA 5585-X Chassis with SSP10, 8GE, 2GE Mgt, 1 AC, DES Part Number:ASA5585-S10-K8
ASA 5585-X Half Width Blank Slot Cover Part Number:ASA5585-BLANK-H