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16GB RAM Replacement for Samsung M393A2K43BB1-CTD, M393A2K43CB2-CTD, M393A2K43DB2-CTD | DDR4 2666MHz PC4-21300 ECC RDIMM 2Rx8 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 Samsung M393A2K43BB1-CTD, M393A2K43CB2-CTD, M393A2K43DB2-CTD
- 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:
M393A2K43BB1-CTD
M393A2K43CB2-CTD
M393A2K43DB2-CTD
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 Samsung:
M393A2K43BB1-CTD
M393A2K43CB2-CTD
M393A2K43DB2-CTD
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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The A-Tech 16GB DDR4-2666 ECC registered DIMM is a server and workstation memory module for systems that support 288-pin PC4-21300, 2Rx8 RDIMMs, and ECC memory.
Recommended For
- Server operators replacing a failed or missing 16GB DDR4-2666 ECC RDIMM, especially when the system is specified for this Samsung-equivalent 2Rx8 module type.
- Homelab and small-server builders adding memory to a compatible DDR4 RDIMM platform for services such as virtual machines or always-on workloads; check the system’s supported capacity and DIMM-population rules first.
- Workstation owners running memory-intensive professional tasks who have a motherboard and processor that explicitly support DDR4 ECC Registered DIMMs.
- Administrators of compatible systems who prioritize ECC error detection and correction for sustained server or workstation operation over consumer-desktop memory features.
Real-World Use Scenarios
- A Proxmox host is running short on memory as its owner adds virtual machines. If the server supports this RDIMM and has an available compatible slot, adding the module can provide more memory for the host and guests; how many workloads it supports depends on their memory needs.
- A homelab server runs several services or containers and starts running out of memory. Adding capacity may help keep those workloads running without memory pressure, provided RAM—not CPU, storage, or another resource—is the bottleneck.
- A server running SQL Server is constrained by available memory. Extra RAM can give the database more room for its data-page cache, which may reduce physical reads for workloads that benefit from caching; the result depends on the database workload and memory configuration.
- An operator is replacing a module in a server built for the listed Samsung part numbers. This A-Tech replacement can help restore the system’s intended memory capacity if the server supports its memory type and configuration; check the system’s compatibility requirements before installation.