SKU: 99759720497

Cisco Compatible MEM-4400-8G - DDR3 DRAM Module for Cisco ISR 4431 and 4451 Routers

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Description

Cisco Compatible MEM-4400-8G - DDR3 DRAM Module for Cisco ISR 4431 and 4451 RoutersUpgrade and optimize your Cisco ISR 4431 and 4451 routers with MEM 4400 8G, a DDR3 DRAM memory module designed to deliver dependable, high capacity performance. This Cisco compatible memory upgrade adds 8 GB of fast DDR3 RAM to your router, enabling larger routing tables, more concurrent sessions, and smoother data processing. Built for reliability and seamless compatibility, MEM 4400 8G helps you maximize throughput, reduce latency bottlenecks, and

Upgrade and optimize your Cisco ISR 4431 and 4451 routers with MEM-4400-8G, a DDR3 DRAM memory module designed to deliver dependable, high-capacity performance. This Cisco-compatible memory upgrade adds 8 GB of fast DDR3 RAM to your router, enabling larger routing tables, more concurrent sessions, and smoother data processing. Built for reliability and seamless compatibility, MEM-4400-8G helps you maximize throughput, reduce latency bottlenecks, and maintain efficient network operations in demanding environments.

  • High-capacity DDR3 DRAM module: MEM-4400-8G provides an 8 GB memory upgrade for Cisco ISR 4431 and 4451 routers, supporting larger routing tables and more active processes.
  • Optimized for Cisco ISR series: Specifically engineered to be compatible with Cisco ISR 4431 and 4451 platforms, ensuring stable operation and easy integration with existing Cisco hardware and firmware.
  • Plug-and-play upgrade: Designed for straightforward installation with minimal downtime, allowing your router to recognize the added memory quickly and reliably.
  • Improved performance and multitasking: More memory enables faster packet processing, better caching, and smoother handling of VPN sessions, virtualization features, and complex routing tasks.
  • Reliable compatibility and deployment: The MEM-4400-8G module is built to meet industry standards for memory modules used in Cisco routers, providing dependable performance in varied operating conditions.

Technical Details of Cisco Compatible MEM-4400-8G

  • Memory Type: DDR3 DRAM
  • Capacity: 8 GB
  • Form Factor: Memory module designed for Cisco ISR routers
  • Compatibility: Cisco ISR 4431 and 4451 Routers
  • Part Number: MEM-4400-8G (Cisco-compatible memory upgrade)
  • Application: Increases memory available for routing tables, session handling, and app performance on supported Cisco ISR platforms

How to install Cisco Compatible MEM-4400-8G

To install MEM-4400-8G, power down your Cisco ISR router and unplug it from power. Open the access panel to locate the memory slot, remove any existing module if required, align the MEM-4400-8G module with the slot, and firmly seat it until it clicks into place. Replace the access panel, reconnect power, and boot the router. Once the device is powered on, verify the new memory is detected via the router’s management interface or CLI by checking the memory summary or using the appropriate show memory command. If compatible firmware is running, you should see the additional 8 GB reflected in the system memory. If the memory is not recognized, power down again, reseat the module, and retry the boot process. Always follow your network change management policy and perform upgrades during a maintenance window if possible.

Frequently asked questions

  • Q: What is MEM-4400-8G? A: MEM-4400-8G is a DDR3 DRAM memory module designed as an 8 GB upgrade for Cisco ISR 4431 and 4451 routers, providing additional capacity and improved performance.
  • Q: Is MEM-4400-8G an official Cisco part? A: It is described as Cisco-compatible memory. It is designed to work with Cisco ISR routers and validated for compatibility, but it is not an official Cisco-branded memory module.
  • Q: Which devices will benefit most from this upgrade? A: Cisco ISR 4431 and 4451 routers that require more memory for larger routing tables, VPN sessions, virtualization, or high-traffic workloads will benefit most from this upgrade.
  • Q: How do I know if my router needs more memory? A: If you experience system slowdowns under heavy load, excessive routing table growth, or frequent IO waits, adding memory can help improve performance and responsiveness.
  • Q: Are there any special precautions for installation? A: Follow standard safety procedures: power down the device, discharge static, and handle the memory module by edges to avoid touching contacts. Use proper maintenance windows and backup configurations where applicable.
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SKU: 99759720497

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Verified Purchase
Jim O
Natrona Heights, US
★★★★★ 4
Works well
Color: White&Black
Works well. Charge lasts reasonably long. The button placement could be thought out more. Difficult to pick it up with accidentally hitting button. S&P ends up everywhere.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
S
Verified Purchase
Spencer
Bozeman, US
★★★★★ 5
You don't think it will change your life, but it will.
Color: Black
Had this grinder set for almost a year now and I, and my girlfriend can easily say we love these things. It genuinely makes cooking so much easier as salt and pepper are core foundations of seasoning. We've used these almost everyday, for all meals 2-3 times day and we have ZERO complaints. We love fresh cracked pepper but hate those small containers that you hand crack with, I'm looking at you McCormick. Need to season some steaks? Use these and in few seconds boom you're done without any straining whatsoever. The setup is super straightforward and extremely simple. The containers do NOT come pre-filled with either salt nor pepper, however you can pick these up from say walmart for only a buck or two. Once you filled the containers, on the bottom of the grinders, you can easily select the grinding size that you want which is freaking awesome. Again for my steaks I like a bit bigger size of salt / pepper, however if I'm doing say an omelette I want something a bit finer. The charging base is awesome, however I will say these hold a charge for quite a while. We didn't charge these for over a month and they're still working hard. I believe the grind speed is perfect as it's not too slow nor too fast where I have to worry about over-seasoning my food.
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Reviewed in the United States on November 29, 2025
E
Verified Purchase
eman
Fort Morgan, US
★★★★★ 1
They grind well, but have design flaws
Color: Black, Color: Black
These worked great for a few months, but then minor inconveniences became bigger issues. While I initially liked these a lot...I would not purchase units with this design again Pros: These do grind well and have good adjustments to grind size. The battery lasts plenty of time for a long cooking session Flaws: -because the grind comes out the bottom the base fills up with bits and grinding dust very quickly -the location of the button inevitably leads you to pushing the button unintentionally when returning to the base -the charging contacts are very small which means the smallest amount of material in the base makes the grinder sit crooked...and not charge -in the past few weeks one of the seals on the bottom no longer will sit flush in the unit...which if course makes it sit crooked in the base and you guessed it...it won't charge. It seems to get a little worse as it is used more and I am waiting for it to basically become so bad it won't work at all anymore The amount of material in the base in the photo is from probably 3-5 days of daily use.
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Reviewed in the United States on March 2, 2026
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Valya
Massapequa, US
★★★★★ 5
Super Easy to use!
Color: Green
Love these! Love the color, easy to fill, so easy to use! And the light on the salt grinder is so smart!
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Reviewed in the United States on May 24, 2026
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Verified Purchase
Linda Kay
Lexington, US
★★★★★ 5
Good quality, easy to use
Color: 2-Speed Rechargeable Set with Base
I absolutely love these grinders. I always thought electric grinders were silly but I’m so glad I bought these. They work great. I like the adjustable grind and the light really helps. They look nice and are well made.
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Reviewed in the United States on January 19, 2026

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