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64GB RAM Replacement for Hynix HMAA8GR7A2R4N-VN | DDR4 2666MHz PC4-21300 ECC RDIMM 2S2Rx4 (4Rx4) Server Memory
- 64GB ( 1x 64GB Module ) | DDR4 2666 MHz ( PC4-21300 ) | DDR4 DIMM ( 288-Pin ) | ECC RDIMM ( Registered DIMM ) | 1.2V - DDR4 Standard Voltage
- Compatible Equivalent for Hynix HMAA8GR7A2R4N-VN
- 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 Hynix:
HMAA8GR7A2R4N-VN
Memory Specs
Memory Size: 64 GB ( 1 x 64 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:
HMAA8GR7A2R4N-VN
Memory Specs
Memory Size: 64 GB ( 1 x 64 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 64GB DDR4-2666 ECC Registered DIMM is a single-module server memory upgrade for compatible servers and workstations that support 288-pin PC4-21300 RDIMMs; it is listed as an equivalent replacement for Hynix HMAA8GR7A2R4N-VN.
Recommended For
- Server owners upgrading a compatible DDR4 RDIMM system who need a single 64GB module for memory-heavy workloads such as virtualization or hosting multiple services. Confirm the server supports this capacity, speed, and module type before buying.
- Homelab builders expanding memory in a compatible server or workstation—for example, to run more virtual machines or memory-intensive services—who need 64GB per DIMM rather than a consumer desktop memory module.
- Workstation administrators maintaining a platform that specifically accepts DDR4 ECC Registered DIMMs and whose system documentation validates the module’s capacity, speed, and rank configuration.
Real-World Use Scenarios
- When a compatible server runs several virtual machines, adding this memory can give the host more capacity to allocate across guests. It is most useful when memory pressure is limiting how many VMs can run comfortably; it does not remove CPU or storage limits.
- For a compatible TrueNAS or ZFS file server, extra RAM can provide more room for file services, apps, virtual machines, and read caching. Frequently accessed data may be served from memory rather than slower storage, depending on the workload.
- On a compatible database server, additional memory can give the database more room for in-memory caches. This may reduce disk reads for data that fits in the cache, but the result depends on database configuration and the active workload.
- When a server hosts several memory-using services at once, such as application, web, and management workloads, extra capacity can reduce competition for RAM if the system is currently memory-constrained. The improvement depends on the services’ actual memory needs.














