Cisco MC3800 series Multiservice access routers

Cisco MC3800 series Multiservice access routers - Cisco MC3810 Memory Options

MEM-381-1X8F= 8MB Flash Memory for MC3810 (Spare)
MEM-381-1X32F 32MB Flash Memory for MC3810
MEM-381-1X32D= 32Mb DRAM Memory for MC3810
MEM-381-1X16F= 16MB Flash Memory for MC3810 (Spare)
MEM-381-16F-U 16MB FLASH Memory Upgrade for MC3810
MEM-381-1X64D 64MB DRAM Memory for MC3810
MEM-DIM-1X64D= 64 SDRAM memory for the MC3810-V3 (spare)
BOOT-381V-64D16F= MC3810-V Rommon, 64 DRAM & 16 Flash Upgrade
BOOT-381V-64D32F= MC3810-V Rommon, 64 DRAM & 32 Flash Upgrade
BOOT-381V-64D= MC3810-V Rommon & 64 DRAM Upgrade
BOOT-381V= MC3810-V Rommon Upgrade