Cisco 2900 Series Routers Compact Flash (Factory Upgrades and Spares)

MEM-CF-256MB (Approved)
MEM-CF-256MB (Third Party)
256MB Compact Flash for Cisco 1900, 2900, 3900 ISR (Default)

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 for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-512MB= (Approved)
MEM-CF-512MB= (Third Party)
512MB Compact Flash for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-1GB= (Approved)
MEM-CF-1GB= (Third Party)
1GB Compact Flash for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-2GB= (Approved)
MEM-CF-2GB= (Third Party)
2GB Compact Flash for Cisco 1900, 2900, 3900 ISR (only as spare)

MEM-CF-4GB= (Approved)
MEM-CF-4GB= (Third Party)
4GB Compact Flash for Cisco 1900, 2900, 3900 ISR (only as spare)