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16GB RAM Replacement for Samsung M378A2K43BB1-CTD, M378A2K43CB1-CTD, M378A2K43DB1-CTD | DDR4 2666MHz PC4-21300 DIMM 2Rx8 Desktop Memory
- 16GB ( 1x 16GB Module ) | DDR4 2666 MHz ( PC4-21300 ) | DDR4 DIMM ( 288-Pin ) | Non-ECC UDIMM ( Unbuffered DIMM ) | 1.2V - DDR4 Standard Voltage
- Compatible Replacement for Samsung M378A2K43BB1-CTD, M378A2K43CB1-CTD, M378A2K43DB1-CTD
- High performance Memory RAM upgrade designed for Desktop Computers
- 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
Specs
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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:
M378A2K43BB1-CTD
M378A2K43CB1-CTD
M378A2K43DB1-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: Non-ECC UDIMM ( 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:
M378A2K43BB1-CTD
M378A2K43CB1-CTD
M378A2K43DB1-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: Non-ECC UDIMM ( 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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The A-Tech 16GB DDR4-2666 desktop memory module is a non-ECC, unbuffered 288-pin UDIMM for desktops that support DDR4-2666 (PC4-21300) memory, including systems using compatible Samsung M378A2K43BB1-CTD, M378A2K43CB1-CTD, or M378A2K43DB1-CTD modules.
Recommended For
- Owners of compatible DDR4 desktop PCs replacing a failed or insufficient 16GB DIMM, especially systems specified for DDR4-2666 non-ECC unbuffered memory.
- Users of older DDR4 desktops capped at 2666MHz who want a standard-speed memory upgrade rather than a high-speed overclocking or RGB-focused kit.
- Desktop users moving from less memory to 16GB for everyday multitasking—such as keeping browser tabs, email, office apps, and other programs open together—on a compatible system.
- PC owners who want one 16GB module now and may add a second compatible module later, provided their motherboard supports the capacity and configuration.
Real-World Use Scenarios
- On a DDR4 desktop that is short on memory, installing this module can give everyday work—such as web browsing, email, and office documents—more room to run, especially when several apps are open. The benefit depends on the computer’s existing memory and whether it is compatible.
- For entry-level gaming on a compatible desktop, this 16GB module can contribute to a 16GB system configuration, a common baseline for light gaming. It may help when low memory is causing slowdowns, but it does not upgrade the graphics card or guarantee higher frame rates.
- When switching between a game, browser tabs, chat, and other background apps, added memory can reduce slowdowns if the desktop was running short of RAM. Community discussions also note that 16GB can feel limiting when many tabs and a memory-heavy game are open together.
- For casual photo editing or light 1080p video work, a compatible desktop with 16GB of total RAM can handle modest projects; larger or more demanding creative workloads may benefit from more memory. This module adds 16GB, but the final system total depends on the other installed RAM.
- If a desktop’s existing memory module has failed, this can serve as a replacement when the motherboard supports the listed DDR4 desktop-memory type and speed. Replacing a failed module may restore normal operation, but compatibility should be checked against the computer or motherboard specifications.