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  • $359.99
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  • Sold by Direct from manufacturerOWC
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    Shipped by Direct from manufacturerOWC

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    Server System configurator/ABS
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    OWC 32GB Replacement for Samsung M393A4K40DB2-CWE M393A4K40DB3-CWE M393A4K40EB3-CWE - DDR4 3200MHz PC4-25600 ECC Registered RDIMM 288-Pin 2Rx4 1.2V Memory RAM Upgrade

    • OWC 32GB DDR4 3200MHz PC4-25600 ECC Registered RDIMM 288-Pin 2Rx4 1.2V memory RAM module, with the exact same specifications as Samsung part numbers M393A4K40DB2CWE, M393A4K40DB3CWE and M393A4K40EB3CWE.
    • 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.
    • 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 Registered Server Memory, you 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 PC4-25600 3200MHz ECC REGISTERED DIMM SPECIFICATIONS

    Technology DDR4
    Speed PC4-25600 3200MHz CL22
    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 and 2933MHz
    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 PC4-25600 3200MHz ECC REGISTERED DIMM SPECIFICATIONS

    Technology DDR4
    Speed PC4-25600 3200MHz CL22
    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 and 2933MHz
    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 3R2D42R432GB is a 32GB DDR4-3200 ECC registered RDIMM for upgrading compatible servers and workstations that use 288-pin 2Rx4 memory; it is not intended for standard desktops or systems requiring unbuffered memory.

    Recommended For

    • Owners of a DDR4 server that supports 32GB 2Rx4 ECC RDIMMs at the required speed, who want to add memory or replace a matching Samsung module. Check the server’s memory rules before installing it.
    • Virtualization-host operators running multiple VMs on a compatible DDR4 server, when the host needs additional ECC-registered memory for its workload. The CPU and motherboard must support RDIMMs and the planned memory configuration.
    • Homelab builders using a compatible DDR4 server platform for self-hosted services or lab VMs, who want to expand memory with a server-class RDIMM rather than desktop UDIMM memory.
    • Workstation users with a model specifically validated for DDR4 ECC RDIMMs, who need a compatible replacement or memory expansion for professional workloads. Workstation support varies by motherboard and processor, so verify the exact system configuration.

    Real-World Use Scenarios

    • When a compatible server is running short of memory, add this module as part of a supported memory configuration; extra RAM can give active services more room and reduce reliance on slower disk-based paging when memory pressure is the bottleneck.
    • For a virtualization host that needs to run more or larger virtual machines, use compatible RDIMMs to expand host memory; this can ease memory limits on VM allocation, though CPU, storage, and total platform capacity still constrain how many VMs it can support.
    • For a database server whose working set is growing, add memory in a supported configuration to make more room for database processes and cached data; the practical benefit depends on whether memory capacity is currently limiting the workload.
    • When extending the life of an existing DDR4 server or workstation, use the module as a capacity upgrade only after confirming the system supports ECC registered DIMMs and the required memory population rules; it is not a drop-in option for standard desktop memory slots.
    • For a memory-intensive technical workstation, such as one handling large datasets or several demanding applications at once, additional compatible RAM can reduce memory-capacity bottlenecks; it will not necessarily speed up tasks limited by the processor, graphics, or storage.