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64GB RAM Replacement for Samsung M393A8G40AB2-CVF, M393A8G40MB2-CVF | DDR4 2933MHz PC4-23400 ECC RDIMM 2Rx4 Server Memory
- 64GB ( 1x 64GB Module ) | DDR4 2933 MHz ( PC4-23400 ) | DDR4 DIMM ( 288-Pin ) | ECC RDIMM ( Registered DIMM ) | 1.2V - DDR4 Standard Voltage
- Compatible Equivalent for Samsung M393A8G40AB2-CVF, M393A8G40MB2-CVF
- 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:
M393A8G40AB2-CVF
M393A8G40MB2-CVF
Memory Specs
Memory Size: 64 GB ( 1 x 64 GB Module )
Memory Type: DDR4
Form Factor: DIMM ( 288 Pin )
Speed: DDR4 2933 MHz ( PC4-23400 )
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 Samsung:
M393A8G40AB2-CVF
M393A8G40MB2-CVF
Memory Specs
Memory Size: 64 GB ( 1 x 64 GB Module )
Memory Type: DDR4
Form Factor: DIMM ( 288 Pin )
Speed: DDR4 2933 MHz ( PC4-23400 )
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 DDR4-2933 ECC registered DIMM is a server and workstation memory module for systems that support 288-pin, 1.2V, 2Rx4 RDIMMs; it is listed as a compatible equivalent for Samsung M393A8G40AB2-CVF and M393A8G40MB2-CVF.
Recommended For
- Server operators upgrading a compatible DDR4 platform that explicitly supports 64GB ECC registered DIMMs, such as a supported Xeon Scalable server; confirm the system’s memory rules and module compatibility first.
- Owners of compatible workstation-class systems—such as supported Precision 7920 configurations—who need to add memory for demanding professional workloads and whose system supports this DIMM type and capacity.
- IT teams maintaining existing DDR4 server fleets that need a 64GB replacement or capacity expansion matching a supported 2933 MT/s ECC RDIMM configuration.
- Homelab builders using a server or workstation motherboard and processor that specifically support ECC RDIMMs, who want to increase memory capacity for virtual machines or other memory-intensive hosted services.
Real-World Use Scenarios
- When a compatible Xeon- or EPYC-based server is short on memory for virtual machines, adding this module can provide room to allocate more RAM across guest systems; the actual capacity and speed depend on the host’s supported memory configuration.
- For a Proxmox homelab hosting services such as containers, a media server, and a storage VM, additional memory can help keep more workloads running together without competing as quickly for RAM.
- On a database server experiencing memory pressure, extra RAM may give the database more room to cache recently used data and plans, potentially reducing reliance on storage reads; results depend on the database workload and memory settings.
- In a compatible TrueNAS or ZFS storage server, ECC memory provides a way to detect and correct certain in-memory errors, adding a data-integrity safeguard; it does not replace backups or guarantee data safety.














