• Cisco MEM-4400-4GU16G 16GB green DDR4 RAM module
1 1

Cisco

Cisco MEM-4400-4GU16G | ISR 4400 16GB DRAM Memory Upgrade, 8G+8G

MEM-4400-4GU16G

Request Quote
Sale Sold out
Shipping calculated at checkout.

Stock Status: Enquire

20-min response

Need a quote or bulk pricing? Answered within 20 minutes, Sydney business hours.

Description

This 4G to 16G DRAM upgrade is built for the Cisco 4000 Series Integrated Services Routers, specifically the ISR 4400 range such as the ISR 4451-X. It suits branch and WAN edge deployments that need more control-plane memory for larger routing tables, more concurrent services or heavier feature sets.

The upgrade replaces the default 4GB control-plane DRAM, which is made up of two 2GB DIMMs, with 16GB supplied as a matched pair of 8GB DIMMs (8G+8G). The matched pair satisfies the ISR 4451-X requirement that both DIMM slots are populated with identical DIMMs. It is the factory upgrade option that replaces MEM-4400-4G.

On the ISR 4451-X there are two DIMM slots, and both must be populated with symmetrical DIMMs. Mixed DRAM densities or a single DIMM are not supported.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Increases control-plane DRAM to 16GB for larger routing tables, more services and higher scale
- Supplied as a matched pair of 8GB DIMMs to meet the symmetrical DIMM requirement
- Factory configuration upgrade option for the ISR 4400 series
- Replaces the default 4GB (2G+2G) control-plane memory
- Suited to branch and WAN edge routers running heavier feature sets

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

View full details

specs-tabs

Technical Specifications

FAQs

Technical Specifications

- Ordering SKU: MEM-4400-4GU16G
- Total DRAM: 16GB
- Configuration: 2 x 8GB DIMMs (8G+8G)
- Upgrade path: 4G to 16G control-plane DRAM
- Replaces default memory: MEM-4400-4G (4G DRAM, 2G+2G)
- Default control-plane DRAM on ISR 4451-X: 4GB (two 2GB DIMMs)
- Default data-plane DRAM on ISR 4451-X: 2GB (MEM-4400-DP-2G)
- DIMM slots on ISR 4451-X: 2, both must be populated with symmetrical DIMMs
- Mixed DRAM densities or single-slot population: not supported on ISR 4451-X
- Related upgrade SKUs: MEM-4400-4GU8G (4G to 8G), MEM-4400-8GU16G (8G to 16G)
- Related spare DIMM SKUs: MEM-4400-4G=, MEM-4400-8G=

FAQs

Q: Which routers is this memory upgrade for?
A: It is for Cisco ISR 4400 series routers. The ISR 4451-X ordering guide lists this SKU.

Q: What memory does it replace?
A: It replaces the default MEM-4400-4G control-plane memory, which is 4GB made up of two 2GB DIMMs.

Q: Can I fit just one DIMM or mix DIMM sizes?
A: No. On the ISR 4451-X both DIMM slots must be populated with identical DIMMs. Mixed densities or a single DIMM are not supported, which is why this upgrade is a matched 8G+8G pair.

Q: How does this differ from the other ISR 4400 memory upgrade SKUs?
A: MEM-4400-4GU16G takes the router from the default 4G to 16G. MEM-4400-4GU8G upgrades 4G to 8G, and MEM-4400-8GU16G upgrades 8G to 16G.

Q: Does this upgrade change the data-plane memory?
A: No. It upgrades the control-plane DRAM only. The default data-plane DRAM on the ISR 4451-X is 2GB (MEM-4400-DP-2G).

Related Products

View all Router Modules & Accessories

Recently Viewed

  • Request a Quote

    Looking for competitive pricing? Submit a request, and our team will provide a tailored quote that fits your needs.

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Call us Now  

  • Contact Us Directly

    Have a question or need immediate assistance? Call us for expert advice and real-time support.

    Contact us