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  • $8,029.97
  • Free 30-day Returns
  • Sold by Direct from manufacturerOWC
    4.7 (29 seller ratings)

    Shipped by Direct from manufacturerOWC

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    Server System configurator/ABS
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    OWC 1TB (8x128GB) DDR4 2933MHz PC4-23400 CL21 4RX4 ECC Registered RDIMM 1.2V 288-pin Memory RAM Upgrade for Server

    • 16GB
    • 32GB
    • 32GB (2 x 16GB)
    • 64GB
    • 64GB (2 x 32GB)
    • 64GB (4 x 16GB)
    • 128GB
    • 128GB (2 x 64GB)
    • 128GB (4 x 32GB)
    • 128GB (8 x 16GB)
    • 256GB (2 x 128GB)
    • 256GB (4 x 64GB)
    • 256GB (8 x 32GB)
    • 512GB (4 x 128GB)
    • 512GB (8 x 64GB)
    • 1TB (8 x 128GB)
    • 2Rx4
    • 4Rx4
    • ECC REGISTERED UPGRADE: This type of memory is used in Workstations and Servers. It will NOT be compatible with standard desktop computers. Also, it cannot be mixed with UNBUFFERED memory.
    • OWC 1TB UPGRADE: Consists of 8pcs of 128GB DDR4 2933MHz PC4-23400 CL21 4RX4 ECC Registered RDIMM 1.2V 288-pin Memory Modules
    • 100% COMPLIANT: With JEDEC Standard Specifications, ROHS Compliant, Warranty Safe Upgrade. Designed and Tested to Meet or Exceed all Manufacturer OEM Specs
    • MAXIMIZE YOUR SERVER: With OWC's ECC Load Reduced Server Memory, Our RAM upgrades will extend the life of your old infrastructure or save money when building a new one
    • INDUSTRY LEADING: Consumer Friendly Advanced Replacement Program and Limited Lifetime Warranty, which Includes Free Tech Support by Other World Computing
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    Overview
    Specs
    Reviews

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

    OWC DDR4 PC4-23400 2933MHz ECC REGISTERED DIMM SPECIFICATIONS

    Technology DDR4
    Speed PC4-23400 2933MHz CL21
    Form Factor 288PIN ECC REGISTERED DIMM
    ECC Type ECC REGISTERED
    Voltage 1.2v
    Compatibility Server, Workstation, NAS System
    Backward Compatibility Also Compatible with 2133MHz, 2400MHz , 2666MHz
    ECC ddr4 ram 2666 REGISTERED memory mac pro pc4-21300 memory 32gb 64gb 128gb 2019 ram 7,1
    DDR5 ECC REGISTERED REG MEMORY RAM MODULE DIMM STICK 32gb 16gb 8gb 288pin 4800MHz PC5-38400 CL40
    ECC ddr4 ram 2666 REGISTERED memory mac pro pc4-21300 memory 32gb 64gb 128gb 2019 ram 7,1

    OWC DDR4 PC4-23400 2933MHz ECC REGISTERED DIMM SPECIFICATIONS

    Technology DDR4
    Speed PC4-23400 2933MHz CL21
    Form Factor 288PIN ECC REGISTERED DIMM
    ECC Type ECC REGISTERED
    Voltage 1.2v
    Compatibility Server, Workstation, NAS System
    Backward Compatibility Also Compatible with 2133MHz, 2400MHz , 2666MHz
    ecc registered server dimm memory ram upgrade NAS 64gb 32gb 16gb 8gb 288pin stick module
    unbuffered dimm memory ram upgrade desktop workstation non ecc ram 288pin stick module
    ecc registered server dimm memory ram upgrade NAS 64gb 32gb 16gb 8gb 288pin stick module
    OWC DDR4 memory is Fully compliant with JEDEC specifications, ROHS compliant, providing a warranty safe upgrade. OWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac or PC's full potential and speed up overall responsiveness. Become a multitasking maven when you upgrade your Mac or PC with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time. We test every OWC memory module at our in house lab so you can upgrade with the confidence that your memory is built to last.

    We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service. OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.

    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: 60 days
    • This item is covered by OWC Return Policy

    Manufacturer Contact Info

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    The OWC 1TB DDR4-2933 ECC Registered RDIMM kit includes eight 128GB modules for compatible servers and workstations that need high-capacity memory; confirm platform support for 4Rx4 RDIMMs before upgrading.

    Recommended For

    • Operators of compatible DDR4 servers building a high-memory virtualization host to run many memory-intensive VMs on one system; confirm the server supports 128GB 4Rx4 RDIMMs and the planned eight-module population.
    • Database or analytics teams running large working sets in memory, when their server platform supports this exact RDIMM type and capacity.
    • Workstation or server builders consolidating memory-heavy workloads—such as large datasets or multiple services—who need a 1TB kit rather than incremental memory additions.

    Real-World Use Scenarios

    • On a compatible virtualization host, an administrator can run more memory-hungry VMs at once or assign more RAM to existing VMs; the practical benefit depends on having enough CPU and storage capacity as well.
    • For a database server with a large, frequently accessed working set, extra RAM can let more data remain in memory and reduce reliance on disk reads; actual query performance still depends on the database, CPU, storage, and configuration.
    • In a virtual desktop environment, a host can use additional memory to support more concurrent user VMs or larger per-user memory allocations; the achievable user count varies with workload and host capacity.
    • A team consolidating several database instances onto one server can use the added memory to give each instance more room for its working data and caches, potentially reducing memory pressure when those workloads run together.
    • For memory-intensive analytics or data-warehouse workloads, a supported server with a sufficiently large RAM capacity can keep more of the active dataset available in memory; this does not remove CPU, storage, or software limits.