Cisco 3900 Series Router memory

MEM-3900-1GB-DEF - Approved

MEM-3900-1GB-DEF - Third Party

1GB DRAM (512MB+512MB) for Cisco 3925/3945 ISR (Default)

MEM-3900-1GU2GB - Approved

MEM-3900-1GU2GB - Third Party    

1GB to 2GB DRAM Upgrade (1GB+1GB) for Cisco 3925/3945 ISR

MEM-3900-512MB= - Approved

MEM-3900-512MB= - Third Party

512MB DRAM for Cisco 3925/3945 ISR (only as spare)

MEM-3900-1GB= - Approved

MEM-3900-1GB= - Third Party    

1GB DRAM for Cisco 3925/3945 ISR (only as spare)

MEM-CF-256U512MB - Approved

MEM-CF-256U512MB - Third Party

256MB to 512MB CF Upgrade for Cisco 1900, 2900, 3900 ISR

MEM-CF-256U1GB - Approved

MEM-CF-256U1GB - Third Party   

256MB to 1GB Compact Flash Upgrade for Cisco 1900, 2900, 3900 ISR

MEM-CF-256U2GB - Approved

MEM-CF-256U2GB - Third Party    

256MB to 2GB Compact Flash Upgrade for Cisco 1900, 2900, 3900 ISR

MEM-CF-256U4GB - Approved

MEM-CF-256U4GB - Third Party

256MB to 4GB Compact Flash Upgrade for Cisco 1900, 2900, 3900 ISR

MEM-CF-256MB= - Approved

MEM-CF-256MB= - Third Party    

256MB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-512MB= - Approved

MEM-CF-512MB= - Third Party    

512MB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-1GB= - Approved

MEM-CF-1GB= - Third Party

1GB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-2GB= - Approved

MEM-CF-2GB=  - Third Party

2GB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-4GB= - Approved

MEM-CF-4GB= - Third Party    

4GB Compact Flash (Spare) for Cisco 1900, 2900, 3900 ISR (only as spare)