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Cisco

Cisco MEM-1900-512U2-5GB | DRAM upgrade to 2.5GB (adds 2GB SODIMM + 512MB onboard) | for ISR 1941 | DDR2 SODIMM

SKU:MEM-1900-512U2-5GB

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Description

Increase ISR 1941 total DRAM from 512MB to 2.5GB by adding a 2GB DDR2 SODIMM to the single memory slot, complementing the onboard 512MB. This top-capacity upgrade improves headroom for advanced services such as VPN, routing protocols, and security features. Power down the router before installation and observe ESD best practices.

Features

- Maxes out ISR 1941 memory capacity for demanding feature sets
- Single-module install for quick field upgrades
- Improves stability under higher session counts and routing scale
- Ensures sufficient headroom for security and VPN services
- No licensing changes or software reconfiguration required

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: Will this reach the maximum supported memory?
A: Yes. 2GB in the slot plus 512MB onboard provides 2.5GB total.

Q: Do I need to remove existing SODIMM before installing this?
A: If a smaller SODIMM is installed, remove it and insert the 2GB SODIMM.

Q: Any BIOS or ROMMON changes required?
A: No. The platform auto-detects the new memory at boot.

Q: Is the 1941W variant also supported?
A: Yes, the same memory architecture applies to 1941W.

Q: What workloads benefit from 2.5GB RAM?
A: Larger route tables, IPSec VPN, voice/security services, and QoS policies.

Technical Specifications

- Platform compatibility: ISR 1941 (ISR G2 1900 Series)
- Upgrade path: 512MB to 2.5GB total DRAM
- Included: 1x 2GB DDR2 SODIMM (uses the single memory slot)
- Architecture: 2GB SODIMM + 512MB onboard = 2.5GB total
- Form factor: DDR2 SODIMM (200‑pin class)
- Installation: cold-install (power off); ESD precautions recommended

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