32GB Kit (2 x 16GB) DDR4 PC4-21300 2rx8 1.2v DESKTOP Non-ECC Memory Modules (288-Pin DIMM 2666MHz) This memory product is compatible with the following Dell Precision Desktop Towers & SFF Computer Models: ( 3420 T3420 3430 T3430 3620 T3620 3630 T3630 ) Genuine A-Tech Brand. A-Tech is one of the most trusted names in Premium Memory. Backed by a Lifetime Warranty and 5 star customer support, A-Tech has you covered! Memory upgrades have never been easier. Designed specifically to help your computer run faster and smoother, an A-Tech memory upgrade is one of the fastest, most affordable, and easiest ways to improve your system's performance. A-Tech memory empowers your computer to achieve faster application loading times, faster system responsiveness, and increased ability to multitask and handle data-intensive programs. A-Tech modules are rigorously tested to ensure that your memory meets our stringent compatibility and performance standards. Every A-Tech ram module is tested for complete functionality before it leaves our doors. Give your computer the best, trust A-Tech!