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4GB RAM Replacement for Micron MT18JSF51272AZ-1G9 | DDR3 1866MHz PC3-14900 ECC UDIMM 2Rx8 Server Memory
- 4GB ( 1x 4GB Module ) | DDR3 1866 MHz ( PC3-14900 ) | DDR3 DIMM ( 240-Pin ) | ECC UDIMM ( ECC Unbuffered DIMM ) | 1.5V - DDR3 Standard Voltage
- Compatible Equivalent for Micron MT18JSF51272AZ-1G9
- 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
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Overview
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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:
MT18JSF51272AZ-1G9
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 UDIMM ( ECC Unbuffered 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!
Compatible Memory Module Replacement for Micron:
MT18JSF51272AZ-1G9
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 UDIMM ( ECC Unbuffered 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
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
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A-Tech 4GB DDR3-1866 ECC UDIMM memory is a 240-pin, 1.5V unbuffered 2Rx8 module designed for compatible servers and workstations, including systems using Micron MT18JSF51272AZ-1G9-equivalent memory; check your system’s supported RAM specifications before buying.
Recommended For
- Owners of older servers or workstations replacing a module in a system whose manual explicitly supports 4GB dual-rank ECC DDR3 UDIMMs; verify the supported speed and memory population rules before buying.
- Homelab operators maintaining a compatible legacy DDR3 server for modest, low-memory services, when this 4GB module fits the system’s overall capacity needs.
- Workstation or server restorers matching an existing ECC UDIMM configuration on a supported DDR3 platform, rather than building a new system around current-generation memory.
Real-World Use Scenarios
- Replacing a failed or missing DIMM in a compatible legacy Xeon server or workstation: this 4GB module can restore that amount of memory, provided the system supports DDR3 ECC unbuffered DIMMs and the required rank and speed.
- Adding memory to a compatible home server for basic file sharing, backups, or a few always-on services: the module adds 4GB, but that is a modest amount for a system running several services at once.
- Running a small home-lab test setup on an older server: this module can contribute memory for lightweight services or limited testing, but a single 4GB DIMM is not suited to hosting multiple memory-hungry virtual machines.
- Maintaining a compatible NAS or backup server: when the platform supports and enables ECC, the module can be part of a memory setup that detects and corrects certain memory errors; it does not replace data backups or storage checks.














