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RAM for Cisco ISR 4451-X (ISR4451-X/K9)

Model Years: 2013–2022

Max RAM: 16GBRAM Slots: 1RAM Type: DDR3 DRAM 1600MHz
⚠ Single Slot — Limited Upgrade

Compatible RAM for the Cisco ISR 4451-X

Cisco 16GB Flash for ISR 4451

MEM-4400-16G-FLSH

HIGH
Flash0MHz16GBCompactFlash

Cisco 16GB DDR4 DRAM for ISR 4431

MEM-4400-16G

HIGH
DDR4 DRAM2133MHz16GBDDR4 DIMM

Cisco 8GB Flash for ISR 4431

MEM-4400-8G-FLSH

HIGH
Flash0MHz8GBCompactFlash

Kingston 16GB DDR3 DRAM for Cisco ISR 4331

KCS-SP316/16G

MEDIUM
DDR3 DRAM1600MHz16GBCisco DRAM Module

Kingston 8GB DDR3 for ISR 4451

KCS-SP316/8G

MEDIUM
DDR3 DRAM1600MHz8GBCisco DRAM Module

RAM Upgrade Guide for the Cisco ISR 4451-X

This device uses DDR3 DRAM at 1600MHz. Maximum supported capacity is 16GB.

This model has a single RAM slot. Maximum capacity is 16GB.

Always power off and unplug your device before installing RAM. Ground yourself to avoid static discharge.