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Cisco

Cisco MEM-4400-8GU16G | ISR 4400 DRAM 8→16GB (adds 8GB), 1x 8GB DRAM module; non‑hot‑swappable; for 4431/4451

SKU:MEM-4400-8GU16G

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Description

Expand system memory from 8 GB to 16 GB on ISR 4400 Series to run more services simultaneously and handle larger route scales with improved stability. This upgrade adds an 8 GB DRAM module, increasing headroom for SD‑WAN, security, and application hosting on IOS XE. Schedule a maintenance window and use ESD precautions during installation.

Features

- Doubles available DRAM for demanding deployments
- Improves stability under heavy routing and service loads
- Straightforward field upgrade procedure
- No impact on existing licenses or feature tiers
- Validated for ISR 4400 Series

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.

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Technical Specifications

Technical Specifications

- Capacity upgrade: 8 GB to 16 GB total system DRAM
- Included: 1x 8 GB DRAM module (pairs with existing 8 GB)
- Compatibility: ISR 4400 Series (e.g., 4431/4451)
- Use case: More headroom for SD‑WAN, IPSec, and rich services
- Installation: Requires power down and ESD-safe handling
- Licensing: Not applicable (hardware-only upgrade)

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