Skip to main content
  • $29.30
  • Free 30-day Returns
  • Sold by Direct from manufacturerA-Tech
    Top Rated
    4.7 (356 seller ratings)

    Shipped by Direct from manufacturerA-Tech

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

    Meet Your Seller

    4GB RAM Replacement for Micron MT9JSF51272PZ-1G9, MT9JSF51272PZ-1G9E2 | DDR3 1866MHz PC3-14900 ECC RDIMM 1Rx8 Server Memory

    • 4GB ( 1x 4GB Module ) | DDR3 1866 MHz ( PC3-14900 ) | DDR3 DIMM ( 240-Pin ) | ECC RDIMM ( Registered DIMM ) | 1.5V - DDR3 Standard Voltage
    • Compatible Equivalent for Micron MT9JSF51272PZ-1G9, MT9JSF51272PZ-1G9E2
    • High performance Memory RAM upgrade designed for Server/Workstation Systems
    • All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
    • A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
    +
    +
    Overview
    Specs
    Reviews

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

    An A-Tech Memory (RAM) upgrade is an easy, quick way to boost your system's performance by speeding up loading times, improving system responsiveness, and increasing your system's ability to handle higher workloads. Take on more and multitask with ease with a simple and affordable A-Tech Memory upgrade!

    Compatible Memory Module Replacement for Micron:
    MT9JSF51272PZ-1G9
    MT9JSF51272PZ-1G9E2


    Memory Specs
    Memory Size: 4 GB ( 1 x 4 GB Module )
    Memory Type: DDR3
    Form Factor: DIMM ( 240 Pin )
    Speed: DDR3 1866 MHz ( PC3-14900 )
    ECC Type: ECC RDIMM ( Registered DIMM )
    Voltage: 1.5V

    Ensured Reliability
    All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.

    Lifetime Warranty
    Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.

    US Based Technical Support
    Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!

    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 A-Tech Return Policy

    Manufacturer Contact Info

    LOADING...

    A-Tech 4GB DDR3-1866 ECC Registered DIMM is a single 240-pin, 1Rx8 server-memory module for compatible servers and workstations that support PC3-14900 RDIMMs. It operates at 1.5V and is listed as an equivalent to the specified Micron part numbers.

    Recommended For

    • Server administrators maintaining a compatible DDR3 platform who need a 4GB RDIMM replacement or incremental memory addition; check the server manual for supported rank, speed, and slot-population rules.
    • Homelab users keeping a compatible older DDR3 server in service for modest NAS, backup, or self-hosted tasks, where extending existing hardware matters more than moving to a newer platform.
    • Technicians and lab operators supporting legacy software or experiments on an existing DDR3 ECC workstation or server, provided its memory requirements specifically allow registered DIMMs.

    Real-World Use Scenarios

    • When a compatible DDR3 server reports a failed memory module, use this as a replacement to restore capacity; confirm the server supports 4GB 1Rx8 ECC RDIMMs before installing it.
    • For an older server that is short on memory, add this module to increase available RAM for existing services or applications; the actual capacity and speed depend on the system’s supported DIMM layout.
    • In a budget homelab, add compatible memory to a legacy DDR3 host used for virtualization or storage experiments; the extra 4GB can provide some additional room for test workloads, but it is a modest increase rather than a large VM capacity upgrade.
    • For a home NAS or storage server already built on a compatible DDR3 RDIMM platform, use the module to expand or replace memory without changing the server; verify the system’s memory rules first, since RDIMMs are not interchangeable with every DDR3 memory type.