The Cisco 2691 Router uses SDRAM DIMM PC133 133MHz memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

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Memory Type SDRAM DIMM PC133 133MHz
Base Memory 32MB (Removable) Compact Flash 64MB (Removable) DRAM
Upgrade Slots 2 Sockets for DRAM 1 Socket for Compact Flash
Maximum Memory 128MB for Compact Flash 256MB for DRAM
Maximum Module Size 64MB
CPU & Chipset ~
Bus Architecture Proprietary
Manufacturer Part Numbers
  • CISCO2691
Part Number 22.1PC3
133MHz 168pin CL3 Parity
In Stock
$7.99
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Part Number 22.1PC3H
133MHz 168pin CL3 Parity
In Stock
$12.99
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Part Number CFC/128M
In Stock
$116.99
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Part Number CFC/64M
Call to Order
$116.99
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Part Number CFC/128MH
In Stock
$187.99
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Part Number CFC/64MH
Call to Order
$187.99
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Part Number 22.1PC3
133MHz 168pin CL3 Parity
In Stock
$7.99
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Part Number 22.1PC3H
133MHz 168pin CL3 Parity
In Stock
$12.99
View Product

Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
KCS-CF/64 64MB CompactFlash Memory Card Kingston CFC/64M
KCS-CF/128 128MB CompactFlash Memory Card Kingston CFC/128M
KCS-D2691/128 128MB DRAM Module Kingston
CT407695 128MB SDRAM PC133 133MHz Parity DIMM Crucial 22.1PC3