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16GB RAM Replacement for Samsung M321R2GA3BB6-CQK | DDR5 4800MHz PC5-38400 ECC RDIMM 1Rx8 (EC8) Server Memory
- 16GB ( 1x 16GB Module ) | DDR5 4800 MHz ( PC5-38400 ) | DDR5 DIMM ( 288-Pin ) | ECC RDIMM ( Registered DIMM ) | 1.1V - DDR5 Standard Voltage
- Compatible Equivalent for Samsung M321R2GA3BB6-CQK
- 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 Samsung:
M321R2GA3BB6-CQK
Memory Specs
Memory Size: 16 GB ( 1 x 16 GB Module )
Memory Type: DDR5
Form Factor: DIMM ( 288 Pin )
Speed: DDR5 4800 MHz ( PC5-38400 )
ECC Type: ECC RDIMM ( Registered DIMM )
Voltage: 1.1V
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 Samsung:
M321R2GA3BB6-CQK
Memory Specs
Memory Size: 16 GB ( 1 x 16 GB Module )
Memory Type: DDR5
Form Factor: DIMM ( 288 Pin )
Speed: DDR5 4800 MHz ( PC5-38400 )
ECC Type: ECC RDIMM ( Registered DIMM )
Voltage: 1.1V
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 DDR5-4800 ECC Registered DIMM is a single 1Rx8 server memory module designed for compatible servers and workstations that support 288-pin RDIMMs. It is listed as a compatible equivalent to Samsung M321R2GA3BB6-CQK.
Recommended For
- Server administrators replacing a failed or missing 16GB DDR5-4800 ECC RDIMM in a system that supports this module type and configuration.
- Homelab and server operators adding memory in 16GB increments for services such as file sharing, containers, or light virtualization, provided their server supports DDR5 ECC RDIMMs and the planned memory layout.
- Workstation or server maintainers whose platform specifically requires registered ECC memory and supports 16GB, single-rank DDR5-4800 RDIMMs.
Real-World Use Scenarios
- When a supported server or workstation reports a failed memory module, use this as a replacement only if its system specifications match; once recognized, it can restore that module’s memory capacity and ECC functionality.
- For a compatible virtualization host running several virtual machines, adding this module can provide more memory to allocate among guests and the host; the benefit depends on total installed RAM and the server’s supported DIMM layout.
- On a supported database server, adding memory can give the database more room for its active working data and cache, potentially easing memory pressure; one 16GB module is an incremental upgrade, not a guaranteed performance fix.
- For a small business server hosting web, email, or other enterprise applications, adding compatible memory can provide more headroom for concurrent services and activity; the actual improvement depends on whether memory is the current constraint.














