Skip to main content
  • $154.95
  • Free 30-day Returns
  • Sold by Direct from manufacturerNEMIX RAM
    Hot Seller
    4.6 (3,064 seller ratings)

    Shipped by Direct from manufacturerNEMIX RAM

    Price alert
    Server System configurator/ABS
    Shop it at NeweggBusiness.

    Meet Your Seller

    NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Cisco UCS C-Series M5 Servers UCS-MR-X16G2RS-H

    • NEMIX RAM is a Distributor and Manufacturer of Computer Memory and Storage Upgrades. Specializing in Enterprise Storage RAM for Servers and Workstations along with all Standard and Specialty ECC Memory for NAS & PC/Mac based Computers and Laptops.
    • Our Memory Delivers Enhanced Performance: No Doubt about it, Memory Upgrades are the Easiest, Most Cost Effective Way to Speed Up, Maximize and Boost the Overall Performance of Your Computing Environment.
    • Simple Installation: Typically you can Easily Upgrade the Memory Yourself in a couple of Minutes. Always Refer to your Owners Manual for Detailed Instructions.
    • Our Commitment: To Provide only the Best, Highest Quality, Computer Memory Products in the Industry. Back them with a Lifetime Replacement Warranty, and offer Top Tier Support from a Seasoned IT Support Staff that Completely Understands Memory Upgrades.
    • Once You Install NEMIX RAM You Won't need Anything Else.
    +
    +
    Overview
    Specs
    Reviews

    Any questions? Ask CelesteSM will help you find out quickly.

    NEMIX RAM 16GB (1X16GB) DDR4 2666MHZ PC4-21300 2Rx4 1.2V 288-PIN ECC RDIMM Registered Server Memory Compatible with Cisco UCS C-Series M5 Servers UCS-MR-X16G2RS-H

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
    • CONTACT

    Return Policies

    • Return for refund within: 30 days
    • Return for replacement within: 30 days
    • This item is covered by NEMIX RAM Return Policy

    Manufacturer Contact Info

    LOADING...

    NEMIX RAM MR21300-624K1 is a 16GB DDR4-2666 ECC registered DIMM for compatible Cisco UCS C-Series M5 servers, suited to server memory upgrades that require a 2Rx4, 1.2V RDIMM.

    Recommended For

    • Cisco UCS C-Series M5 owners replacing a failed 16GB DDR4-2666 RDIMM or adding a matching module, after checking their server’s memory population rules and accepting third-party memory.
    • IT administrators maintaining Cisco UCS M5 servers who need a single 16GB registered ECC DIMM for a repair or like-for-like replacement rather than a larger memory rebuild.
    • Homelab operators running a compatible UCS M5 server who are comfortable checking RDIMM type, speed, slot placement, and system compatibility before installing third-party memory.
    • Operators of supported UCS M5 configurations who specifically need a 16GB 2Rx4 DDR4-2666 ECC registered module and have confirmed their CPU and existing DIMMs support the planned configuration.

    Real-World Use Scenarios

    • On a compatible UCS C-Series M5 virtualization host that is short on memory, adding this DIMM can provide more capacity to allocate to existing VMs or smaller additional VMs; the actual benefit depends on the server’s total memory configuration and workload.
    • When a supported UCS M5 server has a failed or removed memory module, using a compatible replacement can restore that module’s memory capacity; follow Cisco’s DIMM population rules and match the existing configuration.
    • For an enterprise application server whose active workload is constrained by available RAM, adding memory can provide more room for the application and its sessions; it will not necessarily improve performance if memory is not the limiting resource.
    • On a UCS M5 server used for database or analytics work, added RAM can give memory-intensive workloads more room for active data; the improvement depends on whether the workload is memory-limited and how much memory it needs.
    • In a lab server running several test environments, additional compatible memory can provide more capacity to divide among virtual machines and services, subject to the server’s DIMM-slot and memory-population requirements.