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Cisco

Cisco MEM-CF-256U2GB | CompactFlash (CF) upgrade 256MB→2GB | ISR 1900/2900/3900 compatible | boot/flash storage

SKU:MEM-CF-256U2GB

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Description

Increase router flash capacity from 256MB to 2GB with a CompactFlash upgrade purpose-built for ISR 1900/2900/3900 platforms. Ideal for larger IOS images, logs, and configuration archives, this media refresh helps extend the service life of ISR deployments. Simple field replacement via the front CF slot keeps maintenance straightforward.

Features

- 2GB flash capacity supports larger IOS images and feature sets
- Direct fit for ISR G2 CF slot for easy field replacement
- Improves log and crashinfo retention for troubleshooting
- Enables additional script/config storage for advanced deployments
- Cost-effective life extension for existing ISR fleets

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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FAQs

Technical Specifications

FAQs

Q: Is this compatible with ISR 1900/2900/3900 routers?
A: Yes, it is intended for ISR G2 1900, 2900, and 3900 Series routers.

Q: Do I need to power down the router to replace the CF card?
A: A maintenance window and power-down are recommended so the device cleanly recognizes the new flash and to avoid data corruption.

Q: Does this increase DRAM memory?
A: No. This upgrades flash storage only; DRAM is separate.

Q: Will my existing IOS image be preserved?
A: No. After replacement, you must copy your IOS image and configs to the new CF or reload from your TFTP/server backup.

Q: Is any special license required?
A: No license is required for flash capacity upgrades.

Technical Specifications

- Capacity: 2GB (upgrade from 256MB)
- Media type: CompactFlash (CF)
- Compatibility: ISR 1900, 2900, 3900 Series (ISR G2)
- Use cases: IOS image storage, crashinfo/logs, configs, scripts
- Installation: Power down recommended; replace CF in front slot, then boot
- Form: CF card, router flash/boot media
- Package type: Upgrade (replaces existing 256MB CF)

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