MEM-2951-512U2.5GB, Cisco 2951 ISR Memory, 2.5GB DRAM/512MB+2GB/DRAM Upgrade

  • Brand: Cisco
  • Model: MEM-2951-512U2.5GB
List Price: $750.00
40% OFF
$451.00
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    Overview
    End-of-Life Notice
    End-of-Life Notice
    MEM-2951-512U2.5GB is officially EOL. Service support ends on 2026-11-30.
    For full lifecycle details, see MEM-2951-512U2.5GB EOL.

    Cisco MEM-2951-512U2.5GB Overview

    The Cisco MEM-2951-512U2.5GB is an enterprise-grade DRAM upgrade kit designed specifically for Cisco 2951 ISR routers. It expands system memory from 512MB to a total installed capacity of 2.5GB using dual 240-pin DIMM DRAM modules (2GB + 512MB), enabling richer IOS features, larger routing tables, and more concurrent services. With DDR2-800/PC2-6400 performance, unbuffered Non-ECC design, and RoHS/REACH compliance, this Cisco memory option delivers a reliable, cost-effective path to extend router lifecycle and optimize WAN edge performance.

    Product Highlights

    2.5GB
    Total DRAM
    DDR2
    Memory Type
    240-pin
    DIMM Form

    Product Applications Scenarios

    Enterprise Network
    Upgrading to 2.5GB DRAM on Cisco 2951 ISR boosts routing, QoS, and VPN performance, helping enterprises run more concurrent services while reducing CPU bottlenecks and unplanned downtime in branch environments.
    Cloud Services
    With expanded DRAM, Cisco 2951 ISR can host richer WAN optimization, SSL VPN, and security services, improving branch-to-cloud connectivity and cutting remote application latency by supporting more in-memory processes.
    Edge & IoT
    Additional 2.5GB memory enables Cisco 2951 ISR to handle larger routing tables and monitoring tasks at the edge, supporting more IoT endpoints while maintaining stable performance in distributed deployments.

    Product Features Comparison

      Cisco Cisco Cisco Cisco
    Model MEM-2951-512U2.5GB MEM-2951-512U1.5GB MEM-2951-512U4GB MEM-2951-512U2GB
    Brand Cisco Cisco Cisco Cisco
    Capacity 2.5GB (2GB + 512MB) 512MB to 1.5GB 4GB From 512MB to 2GB
    Memory Type DRAM DRAM DRAM DIMM
    Frequency DDR2-800/PC2-6400 DDR3 800MT/s n/a
    Voltage 1.8V 1.5V 1.8V n/a
    Device Compatibility Cisco 2951 ISR Cisco 2951 ISR Cisco 2951 ISR Cisco 2951 ISR

    Optional Add-ons

    Model Number Description
    MEM-2951-512U4GB Cisco 2951 ISR 4GB DRAM upgrade kit with 2×2GB DDR2 DIMM modules
    MEM-CF-256MB= Cisco 256MB CompactFlash card for ISR 1900/2900/3900 router storage
    MEM-FLASH-32G Cisco 32GB Flash memory module for ISR 4400 series, high-capacity IOS storage

    Quality Certifications

    • ISO 14001
    • ISO 9001
    • RoHS
    • REACH
    • CE
    • FCC
    Specification

    Cisco MEM-2951-512U2.5GB Specification

    Model
    MEM-2951-512U2.5GB
    Brand
    Cisco
    MEM-2951-512U2.5GB Specifications Brand
    Cisco
    Upgrade Capacity
    512MB to 2.5GB
    Total Installed Memory
    2.5GB (2GB + 512MB)
    Compatibility
    Cisco 2951 ISR
    Memory Type
    DRAM
    Module Configuration
    2 x DIMMs
    Form Factor
    DIMM 240-pin
    Data Transfer Rate
    DDR2-800/PC2-6400
    CAS Latency
    5
    Voltage
    1.8V
    Buffering
    Unbuffered
    Error Checking
    Non-ECC
    Operating Temperature
    0??C to 85??C
    Heat Sink
    No
    Latency Timings
    5-5-5-18
    Compliance
    RoHS, REACH
    Signal Processing
    Unregistered
    Weight
    0.25 kg

    Get more information

    Discover unbeatable prices and fast shipping for the MEM-2951-512U2.5GB, Cisco 2951 ISR Memory, 2.5GB DRAM/512MB+2GB/DRAM Upgrade . Access the detailed MEM-2951-512U2.5GB, Cisco 2951 ISR Memory, 2.5GB DRAM/512MB+2GB/DRAM Upgrade datasheet and ensure you're getting the best deal with our reliable delivery service. Need assistance? Our free live chat support is here to help. For more information about the product and pricing, contact us via live chat or email us at [email protected].

    Quality Certifications

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    Q&A

    Questions & Answers

    What accessories are available for the MEM-2951-512U2.5GB?

    No additional accessories are typically needed, but anti-static wrist straps and tools for opening the chassis might be useful.

    How does the MEM-2951-512U2.5GB compare to other similar products?

    The MEM-2951-512U2.5GB offers a high-quality, Cisco-approved DRAM upgrade option with guaranteed compatibility and performance enhancement.

    Is the MEM-2951-512U2.5GB compatible with all Cisco 2951 ISR models?

    Yes, the MEM-2951-512U2.5GB is fully compatible with all models of the Cisco 2951 Integrated Services Router.

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