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Cisco

Cisco MEM-CF-256U512MB | CompactFlash (CF) upgrade 256MB→512MB | ISR 1900/2900/3900 compatible | boot/flash storage

SKU:MEM-CF-256U512MB

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Description

Right-size your router storage from 256MB to 512MB for ISR 1900/2900/3900. This CompactFlash upgrade offers extra capacity for IOS images and logs without overprovisioning, ideal for stable software tracks. Quick field replacement via the front CF slot reduces service time.

Features

- Balanced 512MB capacity for core IOS and logs
- Straightforward field upgrade via CF front slot
- Supports image redundancy and recovery files
- Improves troubleshooting with more log space
- Cost-efficient storage right-sizing for 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: Who should choose 512MB over 1GB or 2GB?
A: Environments with stable IOS needs and modest logging where a moderate increase from 256MB is sufficient.

Q: Do I need to back up before replacing the CF card?
A: Yes. Back up IOS images and configuration files to a TFTP/SCP server or USB where supported.

Q: Is any configuration change required after installation?
A: Verify boot system statements and copy the desired IOS image to the new CF, then write memory.

Q: Does this affect DRAM or performance?
A: No. It affects only flash storage capacity.

Technical Specifications

- Capacity: 512MB (upgrade from 256MB)
- Media type: CompactFlash (CF)
- Compatibility: ISR 1900, 2900, 3900 Series (ISR G2)
- Use cases: IOS image storage, crashinfo/logs, configs
- Installation: Power down recommended; swap via front CF slot
- Form: CF card, router flash/boot media
- Package type: Upgrade (replaces existing 256MB CF)

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