MEM-CF-256U1GB
256MB to 1GB Compact Flash Upgrade for Cisco 1900,2900,3900
sku: SKU24571 MEM-CF-256U2GB
256MB to 2GB Compact Flash Upgrade for Cisco 1900,2900,3900
sku: SKU24581 MEM-CF-256U4GB
256MB to 4GB Compact Flash Upgrade for Cisco 1900,2900,3900
sku: SKU24591 MEM-CF-256U512MB
256MB to 512MB CF Upgrade for Cisco 1900,2900,3900 ISR
sku: SKU24601