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8GB RAM Replacement for Samsung M391A1K43BB2-CTD, M391A1K43DB2-CTD | DDR4 2666MHz PC4-21300 ECC UDIMM 1Rx8 Server Memory
- 8GB ( 1x 8GB Module ) | DDR4 2666 MHz ( PC4-21300 ) | DDR4 DIMM ( 288-Pin ) | ECC UDIMM ( ECC Unbuffered DIMM ) | 1.2V - DDR4 Standard Voltage
- Compatible Equivalent for Samsung M391A1K43BB2-CTD, M391A1K43DB2-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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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:
M391A1K43BB2-CTD
M391A1K43DB2-CTD
Memory Specs
Memory Size: 8 GB ( 1 x 8 GB Module )
Memory Type: DDR4
Form Factor: DIMM ( 288 Pin )
Speed: DDR4 2666 MHz ( PC4-21300 )
ECC Type: ECC UDIMM ( ECC Unbuffered 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:
M391A1K43BB2-CTD
M391A1K43DB2-CTD
Memory Specs
Memory Size: 8 GB ( 1 x 8 GB Module )
Memory Type: DDR4
Form Factor: DIMM ( 288 Pin )
Speed: DDR4 2666 MHz ( PC4-21300 )
ECC Type: ECC UDIMM ( ECC Unbuffered 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 8GB DDR4-2666 ECC UDIMM is a 288-pin, 1.2V unbuffered server memory module designed as an equivalent replacement for Samsung M391A1K43BB2-CTD and M391A1K43DB2-CTD, for compatible servers and workstations that support these specifications.
Recommended For
- Owners of a DDR4 ECC-UDIMM workstation or entry-level server replacing a failed 8GB module, especially when their system supports 2666MHz memory and this module’s 1Rx8 organization. Check the system’s memory support list before buying.
- Workstation or server users who specifically need ECC error detection and correction for supported memory workloads, such as an always-on system or a machine handling important data. ECC must also be supported by the processor, motherboard, and system configuration.
- Builders of ECC-capable home servers or NAS systems who need a single 8GB DDR4 ECC unbuffered DIMM for a compatible platform, rather than registered server memory.
- Users matching an existing Samsung M391A1K43BB2-CTD or M391A1K43DB2-CTD configuration who want a replacement with the listed DDR4-2666 ECC UDIMM specifications; verify the exact system compatibility before mixing it with existing memory.
Real-World Use Scenarios
- In a compatible home NAS or file server, adding or replacing this module can provide ECC memory for routine file-serving tasks; error correction requires support from the processor and motherboard, and does not replace backups or storage checksums.
- For a supported workstation running long renders, simulations, or other sustained professional tasks, ECC memory can help correct certain memory errors while work is in progress; it is a reliability feature, not a performance upgrade.
- In a small home-lab server running lightweight services or a few virtual machines, this module can serve as an ECC-capable memory addition or replacement if the system supports DDR4 ECC UDIMMs; check the system’s memory limits and configuration before installing it.
- When an entry-level server or workstation needs a replacement DIMM, this 8GB module may be suitable for restoring memory capacity if the system accepts the listed DDR4 ECC unbuffered, 1Rx8 configuration; verify the exact model’s requirements, since ECC UDIMMs are not interchangeable with registered memory.