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16GB RAM Replacement for Hynix HMA82GR7AFR4N-VK, HMA82GR7CJR4N-VK, HMA82GR7DJR4N-VK, HMA82GR7JJR4N-VK, HMA82GR7MFR4N-VK | DDR4 2666MHz PC4-21300 ECC RDIMM 1Rx4 Server Memory
- 16GB ( 1x 16GB Module ) | DDR4 2666 MHz ( PC4-21300 ) | DDR4 DIMM ( 288-Pin ) | ECC RDIMM ( Registered DIMM ) | 1.2V - DDR4 Standard Voltage
- Compatible Equivalent for Hynix HMA82GR7AFR4N-VK, HMA82GR7CJR4N-VK, HMA82GR7DJR4N-VK, HMA82GR7JJR4N-VK, HMA82GR7MFR4N-VK
- 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
Specs
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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 Hynix:
HMA82GR7AFR4N-VK
HMA82GR7CJR4N-VK
HMA82GR7DJR4N-VK
HMA82GR7JJR4N-VK
HMA82GR7MFR4N-VK
Memory Specs
Memory Size: 16 GB ( 1 x 16 GB Module )
Memory Type: DDR4
Form Factor: DIMM ( 288 Pin )
Speed: DDR4 2666 MHz ( PC4-21300 )
ECC Type: ECC RDIMM ( Registered DIMM )
Voltage: 1.2V
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 Hynix:
HMA82GR7AFR4N-VK
HMA82GR7CJR4N-VK
HMA82GR7DJR4N-VK
HMA82GR7JJR4N-VK
HMA82GR7MFR4N-VK
Memory Specs
Memory Size: 16 GB ( 1 x 16 GB Module )
Memory Type: DDR4
Form Factor: DIMM ( 288 Pin )
Speed: DDR4 2666 MHz ( PC4-21300 )
ECC Type: ECC RDIMM ( Registered DIMM )
Voltage: 1.2V
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 16GB DDR4-2666 ECC Registered DIMM is a single-module memory upgrade for compatible servers and workstations, with 1Rx4 organization and 1.2V operation; verify your system supports this memory type and speed before buying.
Recommended For
- Server administrators replacing a failed 16GB DDR4-2666 ECC RDIMM with a matching 1Rx4 module in a system that supports those specifications.
- Homelab builders adding memory to a server used for always-on services, storage, or virtual machines, provided the server supports DDR4 ECC RDIMMs and the planned memory configuration.
- Workstation owners whose platform specifically requires registered ECC DDR4 memory and supports 16GB, 1Rx4 DIMMs at up to 2666 MT/s.
- IT teams maintaining older DDR4 servers that use 2666 MT/s RDIMMs and need a single 16GB module rather than a complete memory kit.
Real-World Use Scenarios
- A server owner adds this module to a compatible system to increase available memory for several virtual machines; the extra capacity can help avoid memory pressure, though the number of VMs it supports depends on each VM’s workload and allocation.
- An administrator expands a compatible database server’s RAM; if the database was short on memory, the added capacity may let it keep more frequently used data in memory and reduce reliance on disk reads, but it does not guarantee faster queries.
- A home-lab or small-business operator upgrades a compatible server used for storage services; more host memory can help accommodate the operating system and storage stack, while Proxmox notes that ZFS or Ceph deployments need additional memory based partly on storage size.
- A server operator replaces or adds memory in a compatible ECC-capable system used for ongoing services; ECC can detect and correct certain memory errors, while system monitoring can report memory-error events.
- A workstation or server operator consolidates mixed applications on one compatible machine; the added memory provides more room for concurrent workloads, but actual performance still depends on the system’s processor, storage, existing memory, and workload.














