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  • Sold by Direct from manufacturerOWC
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    Shipped by Direct from manufacturerOWC

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    OWC 16GB DDR5 4800 PC5-38400 CL40 1Rx8 288-pin 1.1V ECC Registered RDIMM Memory RAM Module Upgrade Compatible with ThinkSystem SR675 V3 SR850 V3 SR860 V3 ST650 V3

    • 16GB
    • 32GB
    • 32GB (2 x 16GB)
    • 64GB
    • 64GB (2 x 32GB)
    • 128GB
    • 128GB (2 x 64GB)
    • 128GB (4 x 32GB)
    • 256GB (2 x 128GB)
    • 256GB (4 x 64GB)
    • 512GB (4 x 128GB)
    • 1TB (8 x 128GB)
    • 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 -or- ECC LOAD REDUCED memory.
    • OWC 16GB UPGRADE: Consists of a single 16GB DDR5 4800 PC5-38400 CL40 1Rx8 288-pin 1.1V ECC Registered DIMM Memory RAM Module Upgrade compatible with ThinkSystem models SR675 V3, SR850 V3, SR860 V3 And ST650 V3.
    • INDUSTRY LEADING: Consumer-friendly Advanced Replacement Program and Limited Lifetime Warranty, which includes Free Tech Support by Other World Computing.
    • 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.
    • Replacement for Lenovo part numbers 4X71L72498 4X77A77029 4X77A81437.
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    Overview
    Specs
    Reviews

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

    OWC DDR5 PC5-38400 4800MHz ECC REGISTERED DIMM SPECIFICATIONS

    Technology DDR5
    Speed PC5-38400 4800MHz CL40
    Form Factor 288PIN ECC REG DIMM
    ECC Type ECC REGISTERED
    Voltage 1.1v
    Compatibility Workstation, NAS System, , Servers, Network Switch
    DDR5 ECC REGISTERED REG MEMORY RAM MODULE DIMM STICK 32gb 16gb 8gb 288pin 4800MHz PC5-38400 CL40
    DDR5 ECC REGISTERED REG MEMORY RAM MODULE DIMM STICK 32gb 16gb 8gb 288pin 4800MHz PC5-38400 CL40
    DDR5 ECC REGISTERED REG MEMORY RAM MODULE DIMM STICK 32gb 16gb 8gb 288pin 4800MHz PC5-38400 CL40

    OWC DDR5 PC5-38400 4800MHz ECC REGISTERED DIMM SPECIFICATIONS

    Technology DDR5
    Speed PC5-38400 4800MHz CL40
    Form Factor 288PIN ECC REG DIMM
    ECC Type ECC REGISTERED
    Voltage 1.1v
    Compatibility Workstation, NAS System, , Servers, Network Switch
    DDR5 ECC REGISTERED REG MEMORY RAM MODULE DIMM STICK 32gb 16gb 8gb 288pin 4800MHz PC5-38400 CL40
    DDR5 ECC REGISTERED REG MEMORY RAM MODULE DIMM STICK 32gb 16gb 8gb 288pin 4800MHz PC5-38400 CL40
    DDR5 ECC REGISTERED REG MEMORY RAM MODULE DIMM STICK FOR NAS, Server Workstation NETWORK SWITCH
    OWC DDR5 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 4R8D51R816GB is a 16GB DDR5-4800 ECC registered DIMM for Lenovo ThinkSystem SR675 V3, SR850 V3, SR860 V3, and ST650 V3 servers, suited to compatible server upgrades or builds.

    Recommended For

    • IT teams adding memory in 16GB increments to a Lenovo ThinkSystem SR675 V3, SR850 V3, SR860 V3, or ST650 V3, after checking the server’s processor and DIMM-population rules.
    • Server administrators replacing a failed 16GB DDR5-4800 1Rx8 RDIMM in one of the four listed ThinkSystem models and matching the existing memory configuration.
    • Organizations maintaining supported ThinkSystem servers for business, infrastructure, or other server workloads that require ECC registered memory rather than standard desktop RAM.
    • Server builders who need a single 16GB DDR5-4800 RDIMM for a compatible configuration and are willing to verify DIMM placement and supported memory combinations before installation.

    Real-World Use Scenarios

    • When a compatible ThinkSystem server needs a failed or missing DIMM replaced, this module can restore that memory slot’s capacity—provided the server’s memory population rules and existing DIMM configuration are followed.
    • When an SR850 V3 host is being expanded for server consolidation or virtualization, adding memory can provide more room for its existing workloads; the benefit depends on total installed RAM and the server’s supported DIMM layout.
    • When a compatible SR860 V3 runs virtual machines or transactional database workloads, this module can add memory capacity to an existing configuration, potentially easing pressure as those workloads grow; one 16GB DIMM is an incremental upgrade, not a complete high-memory configuration.
    • When a compatible ST650 V3 supports growing business applications, virtualization, or VDI, adding this DIMM can increase available system memory for those workloads, subject to the server’s processor and memory-population requirements.
    • When an SR675 V3 is used for GPU-accelerated AI, HPC, or visualization, system memory supports CPU-side work alongside the accelerators; this DIMM adds only a small amount of host memory and does not increase GPU memory.